Adjustable circuit board assembly

Abstract

The present disclosure includes an adjustable circuit board assembly including a circuit board, a header connected to the circuit board, and a matrix connector. The header may be configured for connection with the circuit board via a connection matrix and the matrix connector. A method of manufacturing a circuit board assembly may include providing a circuit board, providing a terminal header having a plurality of terminals, providing a connection matrix to at least one of the circuit board and the terminal header, providing a matrix connector, connecting the terminal header with the circuit board via the matrix connector and the connection matrix, and connecting the plurality of terminals to the circuit board.

Claims

1. An adjustable circuit board assembly, comprising: a circuit board; a header connected to the circuit board; a first matrix connector; a second matrix connector; a first connection matrix; and a second connection matrix; wherein the header is configured for connection with the circuit board in a plurality of configurations via the first connection matrix, the first matrix connector, the second connection matrix, and the second matrix connector; the header includes a plurality of electrical terminals disposed in respective apertures of the circuit board separate from the first connection matrix and the second connection matrix; and the first connection matrix includes a first plurality of discrete connection portions corresponding to the plurality of configurations; and the second connection matrix includes a second plurality of discrete connection portions corresponding to the plurality of configurations.

2. The adjustable circuit board assembly of claim 1, wherein the circuit board includes the first connection matrix and the second connection matrix; and the first connection matrix and the second connection matrix are substantially aligned with respective corners of the header.

3. The adjustable circuit board assembly of claim 1, wherein the first plurality of discrete connection portions includes a first plurality of solder pads; and the second plurality of discrete connection portions includes a second plurality of solder pads.

4. The adjustable circuit board assembly of claim 3, wherein the first plurality of solder pads includes at least three adjacent solder pads.

5. The adjustable circuit board assembly of claim 1, wherein the respective apertures are sufficiently large to accommodate for different positions of the plurality of electrical terminals in each configuration of the plurality of configurations; and each electrical terminal of the plurality of electrical terminals is disposed in the same respective aperture of the circuit board in each configuration of the plurality of configurations.

6. The adjustable circuit board assembly of claim 1, wherein the plurality of configurations includes at least three configurations; and the header is connected to the circuit board in different positions in each of the at least three configurations.

7. The adjustable circuit board assembly of claim 1, wherein the first matrix connector includes a protrusion disposed in a recess or aperture of the circuit board.

8. The adjustable circuit board assembly of claim 1, wherein the first connection matrix includes a plurality of recesses or apertures configured to receive a protrusion of the first matrix connector.

9. The adjustable circuit board assembly of claim 1, wherein the first plurality of discrete connection portions and the second plurality of discrete connection portions each include a plurality of solder pads having at least two rows and at least two columns of solder pads; and the first matrix connector is configured for connection with each of the first plurality of discrete connection portions to provide the header with at least four different positions relative to the circuit board.

10. The adjustable circuit board assembly of claim 1, wherein the plurality of configurations includes a first connected position relative to the circuit board in which the first matrix connector is connected with a first discrete connection portion of the first plurality of discrete connection portions, the plurality of configurations includes a second connected position relative to the circuit board in which the first matrix connector is connected with a second discrete connection portion of the first plurality of discrete connection portions; and the first discrete connection portion is different from and substantially adjacent to the second discrete connection portion.

11. The adjustable circuit board assembly of claim 10, wherein in the first connected position, the plurality of electrical terminals of the header are disposed in a first terminal position in the respective apertures of the circuit board; and wherein in the second connected position, the plurality of electrical terminals are disposed in a different second terminal position in the same respective apertures of the circuit board.

12. The adjustable circuit board assembly of claim 1, wherein at least one electrical terminal of the plurality of electrical terminals includes a thin portion disposed in an aperture of the respective apertures of the circuit board; the thin portion is disposed between an upper portion and a lower portion; and the upper portion and the lower portion are wider than the thin portion.

13. The adjustable circuit board assembly of claim 12, wherein the thin portion is at least 25% thinner than the upper portion.

14. An adjustable circuit board assembly, comprising: a circuit board; a header connected to the circuit board; and a matrix connector; wherein the header is configured for connection with the circuit board in a plurality of configurations via a connection matrix and the matrix connector; the header is connected to the circuit board via a second connection matrix and a second matrix connector, via a third connection matrix and a third matrix connector, and via a fourth connection matrix and a fourth matrix connector; and each of the connection matrix, the second connection matrix, the third connection matrix, and the fourth connection matrix includes a plurality of discrete connection portions corresponding to the plurality of configurations.

15. The adjustable circuit board assembly of claim 14, wherein the header includes a plurality of electrical terminals soldered in respective apertures of the circuit board separate from the connection matrix, the second connection matrix, the third connection matrix, and the fourth connection matrix.

16. A method of manufacturing a circuit board assembly, the method comprising: providing a circuit board; providing a terminal header including a plurality of terminals; providing a connection matrix to at least one of the circuit board and the terminal header; providing a matrix connector; connecting the terminal header with the circuit board via the matrix connector and the connection matrix in a connected position of a plurality of connected positions; and soldering the plurality of terminals in respective apertures of the circuit board separate from the connection matrix; wherein the connection matrix and at least one other connection matrix are provided to the circuit board; the header is configured for connection with the circuit board in the plurality of connected positions via the connection matrix and the matrix connector; and the plurality of terminals are disposed in the same respective apertures in each of the plurality of connected positions.

17. The method of claim 16, wherein connecting the terminal header with the circuit board includes soldering the matrix connector to the connection matrix at a first temperature; soldering the plurality of terminals to the circuit board includes soldering the plurality of terminals to the circuit board at a second temperature; and the second temperature is lower than the first temperature.

18. The method of claim 16, including: providing a second circuit board, the circuit board and the second circuit board being substantially identical; providing a second terminal header including a second plurality of terminals; providing a second connection matrix to at least one of the second circuit board and the second terminal header; providing a second matrix connector; connecting the second terminal header with the second circuit board via the second matrix connector in a second header connected position of a plurality of second header connected positions; and soldering the second plurality of terminals in respective apertures of the second circuit board, separate from the second connection matrix, to form a second circuit board assembly, wherein the second header connected position of the second terminal header relative to the second circuit board is different than the connected position of the terminal header relative to the circuit board.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIGS. 1-4 are perspective views of embodiments of circuit board assemblies according to teachings of the present disclosure.

(2) FIGS. 5A and 5B are perspective views, including respective enlarged views, of bottoms of embodiments of circuit board assemblies according to teachings of the present disclosure in which circuit boards are shown as transparent for illustrative purposes.

(3) FIG. 6 is a bottom view of an embodiment of a circuit board assembly according to teachings of the present disclosure.

(4) FIG. 7 is a flow diagram generally illustrating a method of assembling a circuit board assembly according to teachings of the present disclosure.

(5) FIG. 8 is a perspective view, including various enlarged views, of an embodiment of a circuit board assembly according to teachings of the present disclosure.

(6) FIG. 8A is a perspective view of an embodiment of a mold for forming embodiments of headers according to teachings of the present disclosure.

(7) FIG. 9 is a perspective view of an embodiment of a circuit board assembly according to teachings of the present disclosure.

(8) FIGS. 10 and 11 are bottom views of embodiments of circuit board assemblies according to teachings of the present disclosure in which circuit boards are shown as transparent for illustrative purposes.

(9) FIG. 12 is a perspective view of an embodiment of a circuit board assembly according to teachings of the present disclosure.

(10) FIG. 13 is a perspective view, including an enlarged view, of an embodiment of a circuit board assembly according to teachings of the present disclosure.

(11) FIGS. 14 and 15 are perspective views of bottoms of embodiments of circuit board assemblies according to teachings of the present disclosure.

(12) FIGS. 16 and 17 are bottom views of embodiments of circuit board assemblies according to teachings of the present disclosure in which circuit boards are shown as transparent for illustrative purposes.

(13) FIG. 18 is a perspective view, including various enlarged views, of an embodiment of a circuit board assembly according to teachings of the present disclosure.

(14) FIG. 19 is a perspective view of an embodiment of a circuit board assembly according to teachings of the present disclosure.

(15) FIGS. 20 and 21 are perspective views of bottoms of embodiments of circuit board assemblies according to teachings of the present disclosure in which circuit boards are shown as transparent for illustrative purposes.

(16) FIGS. 22-24 are side views of embodiments of circuit board assemblies according to teachings of the present disclosure.

(17) FIG. 25 is a cross-sectional perspective view of an embodiment of a circuit board assembly according to teachings of the present disclosure.

(18) FIG. 26 is a cross sectional view of a circuit board assembly.

(19) FIG. 27 is a cross sectional view of an embodiment of a circuit board assembly according to teachings of the present disclosure.

DETAILED DESCRIPTION

(20) Reference will now be made in detail to embodiments of the present disclosure, examples of which are described herein and illustrated in the accompanying drawings. While the disclosure will be described in conjunction with embodiments, it will be understood that they are not intended to limit the disclosure to these embodiments. On the contrary, the disclosure is intended to cover alternatives, modifications and equivalents, which may be included within the spirit and scope of the disclosure.

(21) In embodiments, such as generally illustrated in FIGS. 1 and 2, an adjustable circuit board assembly 100 may include a circuit board 110 (e.g., a printed circuit board or PCB), a header 140, and/or one or more electrical terminals/pins 160.sub.N. Header 140 and/or terminals 160.sub.N may be connected to circuit board 110 in one or more of a variety of ways. In some configurations, header 140 may be connected to and/or include terminals 160.sub.N, and terminals 160.sub.N may be inserted into corresponding apertures 112 in circuit board 110 and connected to circuit board 110 via soldering the terminals 160.sub.N to circuit board 110. In such configurations, terminals 160.sub.N may generally be centered in the middle of apertures 112, and/or header 140 and terminals 160.sub.N may be fixed relative to circuit board 110 once the solder cools/hardens. In some configurations, it may be desirable to adjust the positions of one or more of header 140, terminals 160.sub.N, and circuit board 110 relative to each other (e.g., in the event of a design change, for manufacturing tolerances, etc.). Terminals 160.sub.N may be connected to circuit board 110 such that portions 162.sub.N (e.g., ends) of terminals 160.sub.N extend beyond circuit board 110.

(22) In embodiments, circuit board 110 may include at least one connection matrix 120.sub.N for connecting header 140 with circuit board 110. Connection matrix 120.sub.N may include a plurality of solder pads 130.sub.N. For example, and without limitation, each connection matrix 120.sub.N may include nine solder pads 130.sub.N that may be disposed in a generally square-shaped configuration (e.g., in three columns each with three rows). Individual solder pads 130.sub.N may, for example, be generally square-shaped. With embodiments, circuit board 110 may include four connection matrices 120.sub.1, 120.sub.2, 120.sub.3, 120.sub.4 and may be disposed such that each is generally aligned with a respective corner of header 140 in an assembled configuration.

(23) With embodiments, circuit board assembly 100 may include at least one matrix connector 150.sub.N which may be configured for connection with a connection matrix 120A, such as via a preform 170.sub.N, and/or with header 140. Circuit board assembly 100 may include a matrix connector 150.sub.N for each respective connection matrix 120.sub.N (e.g., four matrix connectors 150.sub.1, 150.sub.2, 150.sub.3, 150.sub.4, which may be disposed at or about corners of header 140 for connection with connection matrices 120.sub.1, 120.sub.2, 120.sub.3, 120.sub.4). Matrix connectors 150.sub.N may include one or more of a variety of shapes, sizes, materials, and/or configurations. For example, and without limitation, matrix connectors 150.sub.N may resemble a rectangular prism/block and may include a material compatible with soldering (e.g., a metal). Matrix connectors 150.sub.N may be connected with header 140 in one or more of a variety of ways. For example, and without limitation, header 140 may be formed around matrix connectors 150.sub.N, matrix connectors 150.sub.N may be press fit into header 140, matrix connectors 150.sub.N may be snap fit with header 140, and/or matrix connectors 150.sub.N may be connected/fastened to in another way (e.g., via a fastener).

(24) With embodiments, such as generally illustrated in FIGS. 2, 3, 4, 5A, 5B, and 6, circuit board assembly 100 may include a plurality of configurations. In a first configuration (see, e.g., FIGS. 3 and 5A), header 140 may be configured for connection with a first set of solder pads (e.g., solder pads 130.sub.1A, 130.sub.2A, 130.sub.3A, 130.sub.4A) of connection matrices 120.sub.N. For example, and without limitation, header 140 may be connected to circuit board 110 via connecting (e.g., soldering) matrix connectors 150.sub.N, which may be connected with header 140, to the first set of solder pads. In a second configuration (e.g., if a different position of header 140 and/or terminals 160.sub.N relative to circuit board 110 is desired), header 140 may be connected to circuit board 110 via connecting matrix connectors 150.sub.N to a different set of solder pads (e.g., solder pads 130.sub.1B, 130.sub.2B, 130.sub.3B, 130.sub.4B, such as generally illustrated in FIGS. 4 and 5B). For example, and without limitation, header 140 may be shifted in a forward direction, a rearward direction, a leftward direction, and/or a rightward direction (e.g., header 140 may be shifted in a single direction or multiple directions, such as forward and rightward, forward and leftward, rearward and rightward, or rearward and leftward). In embodiments, header 140 may include at least as many possible positions relative to circuit board 110 as solder pads 130.sub.N in each connection matrix 120.sub.N (e.g., nine).

(25) In embodiments, apertures 112 of circuit board 110 may be sufficiently large (e.g., include sufficiently large diameters) to compensate for each potential configuration/position of header 140 and terminals 160.sub.N. For example, and without limitation, apertures 112 may be configured to receive terminals 160.sub.N in each possible connection position of header 140 relative circuit board 110 (e.g., all nine positions).

(26) In embodiments, such as generally illustrated in FIG. 7, a method of assembling and/or adjusting circuit board assembly 100 may include, in step 180, providing circuit board 110 with one or more connection matrices 120.sub.N and/or a plurality of apertures 112 that may be configured for receiving at least portions of electrical terminals 160.sub.N. In step 182, the method may include positioning matrix connectors 150.sub.N. In embodiments, positioning matrix connectors 150.sub.N may include disposing a preform 170.sub.N on certain positions of each of the one or more connection matrices 120.sub.N (e.g., preforms 170.sub.1, 170.sub.2, 170.sub.3, 170.sub.4 on solder pads 130.sub.N). In embodiments, preforms 170.sub.N may include solder and may be referred to herein as solder preforms 170.sub.N, but are not limited to solder preforms. For example, and without limitation, preforms 170.sub.N may include adhesive, such as adhesive drops that may be used in connection with a curing process and/or drop dispensing tools. Additionally or alternatively, adhesive may be used for connecting one or more of circuit board 110, header 140, and matrix connectors 150.sub.N together.

(27) With embodiments, header 140 may be provided and/or connected with one or more matrix connectors 150.sub.N. In step 184, header 140 may be aligned with circuit board 110 such that the one or more matrix connectors 150.sub.N are aligned with respective solder pads 130.sub.N and/or connection matrices 120.sub.N. With embodiments, matrix connectors 150.sub.N may be integrated with header 140. In such configurations, steps 182 and 184 may be combined (e.g., positioning matrix connectors 150.sub.N may include simultaneously positioning header 140). In step 186, the method may include connecting header 140 with circuit board 110. Connecting header 140 with circuit board 110 may include inserting portions of terminals 160.sub.N into respective apertures 112 of circuit board 110. Additionally or alternatively, connecting header 140 with circuit board 110 may include soldering the one or more matrix connectors 150.sub.N with respective connection matrices 120.sub.N. Connecting header 140 with circuit board 110 may include positioning solder preforms 170.sub.N at desired areas (e.g., solder pads 130.sub.N) of connection matrices 120.sub.N, heating solder preforms 170.sub.N to their liquidus point/temperature, and/or allowing solder preforms 170.sub.N to cool. If solder is not used and/or if a different connection material is used, an appropriate curing environment may be provided (e.g., light, temperature, time/duration, etc.), with embodiments.

(28) In step 188, connecting header 140 with circuit board 110 may include soldering terminals 160.sub.N of header 140 to circuit board 110 (e.g., at and/or from an underside 114 of circuit board 110). With embodiments, terminals 160.sub.N ma be connected to circuit board 110 via reflow soldering. For example, and without limitation, solder paste may be applied to a top side of circuit board 110 and terminals 160.sub.N may push at least some of solder paste as terminals 160.sub.N are inserted into apertures 112. Circuit board 110 may then be soldered (e.g., in a reflow oven). During soldering, the solder paste may flow through apertures 112 to underside 114 of circuit board 110.

(29) In embodiments, matrix connectors 150.sub.N may be connected with circuit board 110 before matrix connector 150.sub.N are connected with header 140. In such configurations, header 140 may be connected to matrix connectors 150.sub.N (which have already been connected to circuit board 11) in or more of a variety of ways, such as via a snap fit, fusing, and press-fitting, among others.

(30) In embodiments, solder 172 used in soldering terminals 160.sub.N with circuit board 110 may include a lower liquidus point than solder preforms 170.sub.N, which may allow for terminals 160.sub.N to be soldered/fixed to circuit board 110 without melting the solder 172 connecting matrix connectors 150.sub.N with connection matrices 120.sub.N (e.g., header 140 may remain substantially fixed relative to circuit board 110 during soldering of terminals 160.sub.N to circuit board 110). If the liquidus point of solder preforms 170.sub.N is similar to or lower than the liquidus point of the solder 172 used with terminals 160.sub.N, the heat used to solder terminals 160.sub.N may be sufficient to melt solder preforms 170.sub.N and/or allow matrix connectors 150.sub.N to move relative to connection matrices 120.sub.N during soldering (e.g., terminals 160.sub.N may tend to move, with header 140, toward the center of apertures 112 during soldering if header 140 is not otherwise fixed to circuit board 110).

(31) In embodiments, connecting header 140 to circuit board 110 may include soldering (e.g., oven reflow soldering) header 140 to circuit board 110 via solder preforms 170.sub.N. Then, terminals 160.sub.N may be soldered to circuit board 110 (e.g., via wave soldering at the bottom of circuit board 110). Wave soldering (e.g., selective wave soldering) may apply heat relatively locally to terminals 160.sub.N and/or there may be a relatively poor thermal path between terminals 160.sub.N and matrix connectors 150.sub.N, which may allow for the liquidus temperatures of solder preforms 170.sub.N and solder 172 to be similar (e.g., wave soldering the bottom of circuit board 110 may not re-melt solder preforms 172.sub.N, which may permit header 140 to remain in the same position relative to circuit board 110).

(32) In embodiments, once a circuit board assembly 100 has been designed and/or assembled, it may, in step 190, be validated (e.g., certified, measured, tested, etc.). In step 192, it may be determined whether the circuit board assembly 100 meets certain requirements (e.g., desired measurements/dimensions). If the circuit board assembly 100 does meet the requirements, subsequent circuit board assemblies may be assembled in generally the same manner (e.g., step 194). If the circuit board assembly 100 does not meet such requirements, positioning of matrix connectors 150.sub.N may, in step 196, be adjusted for subsequent circuit board assemblies. In some circumstances, certain environmental factors may change (e.g., dimensions of a connector and/or housing that may be used with terminals 160.sub.N and/or header 140) and it may be desirable to shift the position of header 140 relative to circuit board 110 in subsequent circuit board assemblies. For example, and without limitation, a second circuit board assembly (see, e.g., FIGS. 4 and 5B) may be assembled in substantially the same way as described above, but matrix connectors 150.sub.N may be connected to different solder pads (e.g., solder pads 130.sub.1B, 130.sub.2B, 130.sub.3B, 130.sub.4B) of connection matrices 120.sub.N, and terminals 160.sub.N may be in different positions in respective apertures 112.

(33) In some circumstances, it may be determined that a certain group/batch of components (e.g., a header 140) include a deviation from an expected measurement. In such circumstances, a method of assembling/adjusting a circuit board assembly (e.g., circuit board assembly 100) may begin, for example, in step 196, with adjusting matrix connectors (e.g., matrix connectors 150.sub.N) from a previous configuration according to the deviation. The method may then continue with positioning a header (step 184), connecting the header with a circuit board (step 186), and soldering terminals to the circuit board (step 188), which may complete an assembly/adjusting process.

(34) With embodiments, assembly/adjustment of a circuit board assembly 100 may include some or all of described steps (some of which may be combined with one or more other steps), and the steps may or may not be performed in the order described in connection with the provided embodiments. For example, and without limitation, if a desired configuration is determined, assembly/adjustment of a circuit board assembly 100 may include with providing a circuit board 110 (step 180), positioning matrix connectors 150.sub.N (step 182), positioning a header 140 (step 184), connecting header 140 with a circuit board 110 (step 186), and soldering terminals 160.sub.N to the circuit board 110 (step 188), which may complete an assembly/adjusting process (e.g., the method may not include measuring/validating in step 190, determining if a desired positioning was obtained in step 192, and/or adjusting matrix connectors 150.sub.N in step 196).

(35) In embodiments, such as generally illustrated in FIGS. 8, 9, 10 and 11, an adjustable circuit board assembly 200 may be configured in a similar manner as circuit board assembly 100, and may include a circuit board 210 with a plurality of apertures 212 and/or may include a header 240 that may include terminals 260.sub.N. However, with circuit board assembly 200, header 240 may include one or more connection matrices 220.sub.N (e.g., matrices 220.sub.1, 220.sub.2) and one or more matrix connectors 250.sub.N (e.g., connectors 250.sub.1, 250.sub.2), and/or circuit board 210 may include a solder pad 230.sub.N for each matrix connector 250.sub.N of header 240 (e.g., solder pads 230.sub.1, 230.sub.2, 230.sub.3, 230.sub.4). Connection matrices 220.sub.N of header 240 may include a plurality of possible connection positions for matrix connectors 250.sub.N relative to header 240. Matrix connectors 250.sub.N of circuit board assembly 200 may be connected with header 240 in one or more of a variety of ways. For example, and without limitation, a mold 280 for forming header 240 may provide header 240 with one or more connection matrices 220.sub.N (see, e.g., FIG. 8A). The mold 280 may be used with inserts 282, 284 that may be selectively positioned relative to the mold 280 to form a recess for each matrix connector 250.sub.N and each insert 282, 284 may be configured to form a recess in a least one particular position of the connection matrix 220.sub.N. Such a mold 280 may be used for a plurality of configurations of header 240 (e.g., positions of matrix connectors 250.sub.N relative to header 240) without modifying mold 280 other than the positioning of the inserts 282, 284.

(36) In embodiments, a method of assembling circuit board assembly 200 be fairly similar to the method described in connection with FIG. 7, and/or may include providing circuit board 210, which may include one or more solder pads 230.sub.N, and/or providing header 240. Header 240 may be formed via an adjustable mold 280 configured to adjust connection positions of matrix connectors 250.sub.N within a connection matrix 220.sub.N. Matrix connectors 250.sub.N may be connected to header 240 in first positions. Solder preforms 270.sub.N (e.g., solder preforms 270.sub.1, 270.sub.2) may be connected to (e.g., disposed on and/or near) solder pads 230.sub.N and/or matrix connectors 250.sub.N. Header 240 may be aligned with circuit board 210 such that matrix connectors 250.sub.N are aligned with solder pads 230.sub.N and/or solder preforms 270.sub.N, and terminals 260.sub.N may be inserted into corresponding apertures 212 of circuit board 210. Matrix connectors 250.sub.N may then be connected with solder pads 230.sub.N via solder preforms 270.sub.N, and solder preforms 270.sub.N may be permitted to cool/solidify. Terminals 260.sub.N of header 240 may then be soldered to circuit board 210 (e.g., at a lower temperature than the soldering of solder preforms 270.sub.N). In a second configuration (see, e.g., FIG. 11), matrix connectors 250.sub.N may be connected to header 240 in different positions within connection matrices 220.sub.N, which may correspond to header 240 being connected to circuit board 210 in a different position and/or terminals 260.sub.N being disposed in different positions within apertures 212. For example, and without limitation, connecting matrix connectors 250.sub.N with header 240 in a second configuration may include forming header 240 to include recesses (or other connection features) for connecting with matrix connectors 250.sub.N in a different position relative to the first configuration.

(37) In embodiments, a circuit board assembly (e.g., circuit board assemblies 100, 200) may include a circuit board 110 with a connection matrix 120.sub.N and a header 240 with a connection matrix 220.sub.N (e.g., matrix connectors 150.sub.N, 250.sub.N may be connected to a circuit board 110 in a plurality of positions and connected to header 240 in a plurality of positions).

(38) In embodiments, such as generally illustrated in FIGS. 12, 13, 14, 15, 16, and 17, an adjustable circuit board assembly 300 may be configured in a similar manner as circuit board assembly 100, and may include a circuit board 310 with a plurality of apertures 312 and/or may include a header 340 that may include terminals 360.sub.N. However, with circuit board assembly 300, one or more connection matrices 320.sub.N of circuit board 310 may include a plurality of connector apertures 322.sub.N configured to receive at least a portion of a matrix connector 350.sub.N. Matrix connectors 350.sub.N may include one or more of a variety of shapes, sizes, materials, and/or configurations. For example, and without limitation, matrix connectors 350.sub.N may include metallic and/or plastic materials. Matrix connectors 350.sub.N may be connected/incorporated with header 340 and/or may include a protrusion 352.sub.N (e.g., protrusions 352.sub.1, 352.sub.2, 352.sub.3, 352.sub.4) that may be configured for insertion into connector apertures 322.sub.N of connection matrices 320.sub.N. For example, and without limitation, header 340 may include four matrix connectors 350.sub.1, 350.sub.2, 350.sub.3, 350.sub.4 that may be disposed at or about respective corners of header 340. Circuit board 310 may include four connection matrices 320.sub.1, 320.sub.2, 320.sub.3, 320.sub.4 configured to be aligned with matrix connectors 350.sub.1, 350.sub.2, 350.sub.3, 350.sub.4. With embodiments, each connection matrix 320.sub.N may include, for example, nine apertures 322.sub.1A, 322.sub.1B, 322.sub.1C, 322.sub.1D, 322.sub.1E, 322.sub.1F, 322.sub.1G, 322.sub.1H, 322.sub.1I, which may correspond to nine potential configurations/positions of header 340 relative to circuit board 310. Connector apertures 322.sub.N and/or matrix connectors 350.sub.N may be configured for a press/interference fit (e.g., the diameters of each may be similar, and/or the diameter of matrix connectors 350.sub.N may be at least as large or larger than the diameters of apertures 322.sub.N), may be configured for a clearance fit, and/or a combination of press fits and clearance fits.

(39) In embodiments, a method of assembling circuit board assembly 300 may be similar to the method described in connection with FIG. 7, and/or may include providing circuit board 310, which may include a plurality of connection matrices 320.sub.N and/or a plurality of terminal apertures 312. The method may include providing a header 340, which may include/be connected with matrix connectors 350.sub.N. Matrix connectors 350.sub.N may be configured for connection with the plurality of connection matrices 320.sub.N. Header 340 may include a plurality of electrical terminals 360.sub.N. Connection matrices 320.sub.N may include a plurality of connector apertures 322.sub.N that may be configured to at least partially receive matrix connectors 350.sub.N (e.g., receive protrusions 352.sub.N). Header 340 may be aligned with circuit board 310 such that protrusions 352.sub.N of matrix connectors 350.sub.N are aligned with a first set of connector apertures (e.g., middle connector apertures 322.sub.1A, 322.sub.2A, 322.sub.3A, 322.sub.4A, such as generally illustrated in FIGS. 12-14 and 16). Header 340 may be connected with circuit board 310, which may include inserting matrix connector protrusions 352.sub.N into connector apertures 322.sub.N and/or inserting terminals 360.sub.N into terminal apertures 312. Terminals 360.sub.N may then be soldered to circuit board 310, and matrix connectors 350.sub.N may restrict and/or prevent movement (e.g., centering) of terminals 360.sub.N in terminal apertures 312 (e.g., at least during soldering). If, after assembly of a first circuit board assembly 300, a different positioning of header 340 is desired, subsequent circuit board assemblies 300 may be assembled via inserting matrix connectors 350.sub.N into a different set of connector apertures (e.g., 322.sub.1B, 322.sub.2B, 322.sub.3B, 322.sub.4B) of connections matrices 320.sub.N of circuit board 310 (see, e.g., FIGS. 15 and 17).

(40) In embodiments, such as generally illustrated in FIGS. 18, 19, 20, and 21 an adjustable circuit board assembly 400 may be configured in a similar manner as circuit board assembly 200, and/or circuit board assembly 400 may generally resemble a reverse configuration of circuit board assembly 300. Circuit board assembly 400 may include a circuit board 410 with a plurality of terminal apertures 412, may include a header 440 with terminals 460.sub.N and one or more connection matrices 420.sub.N (e.g., matrices 420.sub.1, 420.sub.2), and/or may include matrix connectors 450.sub.N (e.g., connectors 450.sub.1, 450.sub.2) that may be connected with header 440 in a plurality of positions of connection matrices 420.sub.N. Compared with circuit board assembly 200, circuit board assembly 400 may include a connector aperture 422.sub.N (e.g., apertures 422.sub.1, 422.sub.2) for each matrix connector 450.sub.N (e.g., instead of solder pads 230.sub.N) and/or matrix connectors 450.sub.N may include protrusions 452.sub.N (e.g., protrusions 452.sub.1, 452.sub.2) configured for insertion into the connector apertures 422.sub.N (e.g., as opposed to matrix connectors being configured for soldering like matrix connectors 250.sub.N, although matrix connectors 450.sub.N may include protrusions 452.sub.N and be configured for soldering). Matrix connectors 450.sub.N may include the same or similar configurations as matrix connectors 350.sub.N of circuit board assembly 300.

(41) In embodiments, a method of assembling circuit board assembly 400 may be similar to the method described in connection with FIG. 7, and/or may include providing a circuit board 410, which may include one or more connector apertures and/or the method may include providing header 440. Similar to header 240, header 440 may be formed, for example, via an adjustable mold (e.g., mold 280) configured to adjust connection positions of matrix connectors 450.sub.N within a connection matrix 420.sub.N of possible positions. In a first configuration, matrix connectors 450.sub.N may be connected to header 440 in first positions (e.g., middle positions, such as generally illustrated in FIGS. 18-20). Header 440 may then be aligned with circuit board 410 such that matrix connector protrusions 452.sub.N are aligned with connector apertures 422.sub.N. Matrix connector protrusions 452.sub.N may then be inserted into connector apertures 422.sub.N, terminals 460.sub.N may be inserted into terminal apertures 412, and/or terminals 460.sub.N may then be soldered to circuit board 410 (e.g., while matrix connectors 450.sub.N restrict lateral movement of terminals 460.sub.N). In a second configuration (see, e.g., FIG. 21), matrix connectors 450.sub.N may be connected to header 440 in different positions within connection matrices 420.sub.N (e.g., forward positions), header 440 may be connected to circuit board 410 in a different position, which may correspond to terminals 460.sub.N being disposed in different positions within terminal apertures 412.

(42) In embodiments, a circuit board assembly (e.g., circuit board assemblies 300, 400) may include a circuit board 310 with a connection matrix 320.sub.N and a header 440 with a connection matrix 420.sub.N (e.g., matrix connectors 350.sub.N, 450.sub.N may be connected to a circuit board 310 in a plurality of positions and connected to a header 440 in a plurality of positions).

(43) In embodiments, such as generally illustrated in FIGS. 23, 24, 25, and 27, an electrical terminal 560 may include a thin section 562 that may include a small width (or diameter) 562W. Electrical terminal 560 may include an upper section 564 that may be disposed above thin section 562 and may include a width 564W that may be wider than width 562W of thin section. Width 562W of thin section 562 may be thinner than a width 568W of a lower section 568 of terminal 560 below thin section 562 and/or relative to terminals 660 without thin sections 562, such as generally illustrated in FIGS. 22 and 26). For example, and without limitation, a thin section 562 may be about 25% thinner, about 50% thinner, about 75% thinner, or even thinner than upper sections 564, 664 (with widths 564W, 664W) and/or lower sections 568, 668 (with widths 568W, 668W) of terminals 560, 660. The thickness of thin section 562, upper section 564, and/or lower section 568 may be about the same (e.g., sections 562, 564, 568 may include different widths, but may include the same or about the same thickness).

(44) With embodiments, thin section 562 may be configured to align with a thickness 510T of a circuit board 510 upon insertion of a terminal 560 into a terminal aperture 512 of circuit board 510. Thin section 562 may be configured to allow terminal 560 to move a greater amount within a circuit board aperture 512 than if thin section 562 included the same width as upper section 564 and/or lower section 568. For example, and without limitation, a terminal 560 without thin section 562 may be configured to move a distance X in each direction within a given circuit board aperture 512 (see, e.g., FIG. 26). In contrast, a terminal 560 with thin section 562 may be configured to move a distance X+n, where n corresponds to half of a difference in width between terminal 560 and terminal 660 without a thin section 562 (e.g., half of width 668W less width 562W), in at least two directions within the same aperture or an aperture of about the same size (see, e.g., FIGS. 25 and 27). Additionally or alternatively, thin sections 562 may be configured to allow for use of smaller circuit board apertures 512 (e.g., apertures with smaller diameters). Terminals 560 with thin sections 562 may be used, for example, in connection with one or more of circuit board assemblies 100, 200, 300, 400 and/or may be configured to use with some or all header positions in connection matrices 120.sub.N, 220.sub.N, 320.sub.N, 420.sub.N. With embodiments, a terminal (e.g., terminal 560) may include a generally circular (or other shape) cross section and thin section 562 may include a relatively small diameter (and/or outer dimensions) than terminals without a thin section (e.g., terminals 660).

(45) Various embodiments are described herein for various apparatuses, systems, and/or methods. Numerous specific details are set forth to provide a thorough understanding of the overall structure, function, manufacture, and use of the embodiments as described in the specification and illustrated in the accompanying drawings. It will be understood by those skilled in the art, however, that the embodiments may be practiced without such specific details. In other instances, well-known operations, components, and elements have not been described in detail so as not to obscure the embodiments described in the specification. Those of ordinary skill in the art will understand that the embodiments described and illustrated herein are non-limiting examples, and thus it can be appreciated that the specific structural and functional details disclosed herein may be representative and do not necessarily limit the scope of the embodiments.

(46) Reference throughout the specification to “various embodiments,” “with embodiments,” “in embodiments,” or “an embodiment,” or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases “in various embodiments,” “with embodiments,” “in embodiments,” or “an embodiment,” or the like, in places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Thus, the particular features, structures, or characteristics illustrated or described in connection with one embodiment may be combined, in whole or in part, with the features, structures, or characteristics of one or more other embodiments without limitation given that such combination is not illogical or non-functional.

(47) It should be understood that references to a single element are not necessarily so limited and may include one or more of such element. Any directional references (e.g., plus, minus, upper, lower, upward, downward, left, right, leftward, rightward, top, bottom, above, below, vertical, horizontal, clockwise, and counterclockwise) are only used for identification purposes to aid the reader's understanding of the present disclosure, and do not create limitations, particularly as to the position, orientation, or use of embodiments.

(48) Joinder references (e.g., attached, coupled, connected, and the like) are to be construed broadly and may include intermediate members between a connection of elements and relative movement between elements. As such, joinder references do not necessarily imply that two elements are directly connected/coupled and in fixed relation to each other. The use of “e.g.” throughout the specification is to be construed broadly and is used to provide non-limiting examples of embodiments of the disclosure, and the disclosure is not limited to such examples. Uses of “and” and “or” are to be construed broadly (e.g., to be treated as “and/or”). For example and without limitation, uses of “and” do not necessarily require all elements or features listed, and uses of “or” are intended to be inclusive unless such a construction would be illogical.

(49) It is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative only and not limiting. Changes in detail or structure may be made without departing from the present disclosure.

(50) Furthermore, the mixing and matching of features, elements and/or functions between various examples is expressly contemplated herein so that one of ordinary skill in the art would appreciate from this disclosure that features, elements, and/or functions of one example may be incorporated into another example as appropriate, unless described otherwise, above. Moreover, many modifications may be made to adapt a particular situation or material to the teachings of the present disclosure without departing from the scope thereof. Therefore, it is intended that the present teachings not be limited to the particular examples illustrated by the drawings and described in the specification, but that the scope of the present disclosure will include any embodiments falling within the foregoing description and the appended claims.