Interposers having three housings interconnected to each other
09806446 · 2017-10-31
Assignee
Inventors
- Jae Hwang Lee (San Jose, CA, US)
- Mahmoud R. Amini (Sunnyvale, CA, US)
- Zheng Gao (San Jose, CA, US)
- Nathan N. Ng (Fremont, CA, US)
Cpc classification
H01R12/00
ELECTRICITY
H01R31/06
ELECTRICITY
H01R24/66
ELECTRICITY
H01R12/52
ELECTRICITY
H01R13/658
ELECTRICITY
International classification
H01R12/00
ELECTRICITY
H01R12/52
ELECTRICITY
H01R13/658
ELECTRICITY
H01R12/72
ELECTRICITY
H01R24/66
ELECTRICITY
Abstract
Connecting structures to mechanically connect to a connector receptacle tongue and a printed circuit board and to electrically connect contacts on the connector receptacle tongue to traces on the printed circuit board. One example may provide an interposer having a housing and a plurality of contacts to connect a vertical tongue to a horizontal printed circuit board. The contacts may have a side or tongue connecting portion extending beyond a side of the housing and a bottom or board contacting portion extending beyond a bottom of the housing. The contacts may form a ninety-degree bend. A shield may at least substantially surround a vertical side of the housing.
Claims
1. An electronic device comprising: a device enclosure having a connector receptacle, the connector receptacle comprising: a recess in the device enclosure, the recess having an opening in a rear surface; and a tongue supporting contacting portions of a first plurality of contacts on a first side of the tongue and contacting portions of a second plurality of contacts on a second side of the tongue, the tongue extending through the opening in the rear surface of the recess, wherein the tongue is a portion of an interposer, the interposer further comprising: a first housing formed around the first plurality of contacts, where each of the first plurality of contacts includes a contacting portion at a first end and a contact tail at a second end; a second housing formed around the second plurality of contacts, where each of the second plurality of contacts includes a contacting portion at a first end and a contact tail at a second end; and a third housing including the tongue supported by a connecting portion, wherein a first tab on the first housing fits in a first opening in the second housing, a second tab on the first housing fits in a second opening in the connecting portion of the third housing, and a third tab on the second housing fits in a third opening on the connecting portion of the third housing to secure the first housing, the second housing, and the third housing together.
2. The electronic device of claim 1 wherein the connector receptacle consists of the recess in the device enclosure of the electronic device, the tongue, and contacts supported by the tongue, the contacts including the first plurality of contacts and the second plurality of contacts.
3. The electronic device of claim 1 further comprising a printed circuit board, wherein contact tails for each of the first plurality of contacts and each of the second plurality of contacts are attached to the printed circuit board.
4. The electronic device of claim 3 wherein the tongue and the printed circuit board are at least approximately orthogonal to each other.
5. The electronic device of claim 4 wherein the tongue is formed of plastic.
6. The electronic device of claim 5 wherein each of the first plurality of contacts and each of the second plurality of contacts further comprise a ninety degree bend.
7. The electronic device of claim 6 wherein the interposer further comprises a shield.
8. The electronic device of claim 7 wherein a first tab on the shield fits in a first cutout of the connecting portion of the third housing and a second tab on the shield fits in a second cutout of the connecting portion of the third housing to secure the shield to the third housing.
9. The electronic device of claim 1 wherein contact tails of the first plurality of contacts form a first row of surface mount contact tails and a second row of through-hole contact tails, where the first row is along an outside edge of the interposer.
10. An electronic device comprising: a device enclosure having a connector receptacle, the connector receptacle comprising: a recess in the device enclosure, the recess having an opening in a rear surface; and a tongue supporting contacting portions of a first plurality of contacts on a first side of the tongue and contacting portions of a second plurality of contacts on a second side of the tongue, the tongue extending through the opening in the rear surface of the recess, wherein the tongue is a portion of an interposer, the interposer further comprising: a first housing formed around the first plurality of contacts, where each of the first plurality of contacts includes a contacting portion at a first end and a contact tail at a second end; a second housing attached to the first housing and formed around the second plurality of contacts, where each of the second plurality of contacts includes a contacting portion at a first end and a contact tail at a second end; a third housing attached to the first housing and the second housing and including the tongue supported by a connecting portion; and a central ground plane forming a central ground plane portion in a center of the tongue, a first ground contact on the first side of the tongue, and a second ground contact on the second side of the tongue.
11. The electronic device of claim 10 wherein the tongue is formed of plastic and the central ground plane is formed of metal.
12. The electronic device of claim 11 wherein each of the first plurality of contacts and each of the second plurality of contacts further include a ninety-degree angle.
13. The electronic device of claim 12 further comprising a printed circuit board, wherein contact tails for each of the first plurality of contacts and each of the second plurality of contacts are attached to the printed circuit board.
14. The electronic device of claim 13 wherein one of the first plurality of contacts has a through-hole tail portion one of the first plurality of contacts has a surface-mount tail portion.
15. The electronic device of claim 14 wherein the interposer further comprises a shield substantially around a top, rear, and two sides of the attached first and second housing.
16. An interposer the interposer comprising: a first plurality of contacts having contacting portions at a first end and a contact tail at a second end; a second plurality of contacts having contacting portions at a first end and a contact tail at a second end; a tongue supporting the contacting portions of the first plurality of contacts and the contacting portions of the second plurality of contacts; a first housing formed around the first plurality of contacts,; a second housing formed around the second plurality of contacts; and a third housing including the tongue supported by a connecting portion, wherein a first tab on the first housing fits in a first opening in the second housing, a second tab on the first housing fits in a second opening in the connecting portion of the third housing, and a third tab on the second housing fits in a third opening on the connecting portion of the third housing to secure the first housing, the second housing, and the third housing together.
17. The interposer of claim 16 wherein each of the first plurality of contacts and each of the second plurality of contacts further include a ninety-degree angle.
18. The interposer of claim 17 further comprising a printed circuit board, wherein the contact tails for each of the first plurality of contacts and each of the second plurality of contacts are attached to the printed circuit board, wherein one of the first plurality of contacts has a through-hole tail portion one of the first plurality of contacts has a surface-mount tail portion.
19. The interposer of claim 16 further comprising a shield, wherein a first tab on the shield fits in a first cutout of the connecting portion of the third housing and a second tab on the shield fits in a second cutout of the connecting portion of the third housing to secure the shield to the third housing.
20. The interposer of claim 16 wherein the contact tails of the first plurality of contacts form a first row of surface mount contact tails and a second row of through-hole contact tails, where the first row is along an outside edge of the interposer.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS
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(25) In various embodiments of the present invention, the tongue and board may be at different heights or at angles relative to each other in an electronic device. In these situations, one or more different typ1es of interposers may be used to connect these boards. A connector receptacle according to an embodiment of the present invention is shown in the following figure.
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(27) It may be desirable to connect contacts 120, which may be connected to traces on tongue 110, to traces on printed circuit board 220. However, these to boards may be at different heights or at different angles in the device. Accordingly, interposer 210 or other connecting structure may be used to connect contacts 120 and traces on tongue 110 to traces on printed circuit board 220. Also, while embodiments of the present invention are well-suited to forming electrical connections between tongues and printed circuit boards, embodiments of the present invention may provide interposers and other interconnect structures to form electrical connections between other structures, such as receptacle housings that may support a number of contacts, flexible circuit boards, and other appropriate connector portions and substrates. Examples of specific interposers and connecting structures are shown in the following figures.
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(29) Through-hole contacts 320 may help to provide vertical adjustment to the connections between a tongue and a printed circuit board, such as tongue 110 and printed circuit board 220. That is, the contacts 320 may be inserted into openings in the tongue or printed circuit board an amount that varies with the vertical offset, or difference in Z position, between the tongue and printed circuit board. This adjustment may be useful in accounting for variations in positions when interposers are used to connect a tongue and board at different angles relative to each other.
(30) Through-hole contacts, such as through-hole contacts 320, may tend to emit more signal noise thereby degrading signal integrity. This may make these through-hole contacts unsuitable for very high-speed applications. In such applications, surface-mount contacts may be used. These surface-mount contacts may be positioned on either or both ends of contacts, such as contacts 320. These surface-mount contacts may be SMT type contacts, ball contacts, or other types of surface-mount contacts. An example of an interposer using ball contacts is shown in the following figure.
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(32) In various embodiments of the present invention, it may be desirable to attach an interposer to a tongue before attaching the interposer and tongue together as a unit to a printed circuit board. In such case, a higher temperature solder or connecting material may be used to connect the tongue to the interposer. This may ensure that the tongue and interposer remain intact together while the interposer is soldered to the printed circuit board using a lower temperature solder or connecting material.
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(36) In these embodiments of the present invention, the interposers may provide a height translation. In these and other embodiments of the present invention, interposers may provide an angular translation. Examples are shown in the following figures.
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(42) In the above example, tongue 110 and connecting portion 150 may be formed as a printed circuit board. In other embodiments of the present invention, a tongue may be formed of plastic or other material. An example is shown in the following figure.
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(45) In various embodiments of the present invention, a number of contacts on a tongue may be fixed or determined by an existing interface specification. But it may be desirable to reduce the number of contact portions 1322. Reducing the number of board contact portions 1322 may reduce the board space consumed by connecting structure 1300. Accordingly, in some embodiments of the present invention, more than one tongue contacting portion 1320 may be connected together and connected to a single board contacting portion 1322. For example, tongue contact portions 1410 may electrically connected together. These contact portions may be for power and may connect together to a single power contact portion 1322. Similarly, ground contacts 1412 may be connected together to a single board contact portion 1322. Moreover, other tongue contacts, such as tongue contacting portion 1414, may be present but may not be connected to a board contacting portion 1322.
(46) A third housing portion (not shown) may form tongue 1310. This third housing portion may attach to housing portions 1352 and 1350 using tabs 1357 and notches 1358, as shown below.
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(48) Other embodiments of the present invention may include tongues formed of printed circuit boards or plastic. The plastic may be reinforced with a central ground plane, such as a metallic central ground plane, for increased durability. Examples of interposers having a printed circuit board tongue and a plastic tongue are shown in the following figures.
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(50) Tongue 1610 may support a number of contacts 1620. Contacts 1620 may be plated on surfaces of tongue 1610. Tongue 1610 may also include a front ground plated region 1622. Ground contacts 1630 may be placed on a top and bottom side of tongue 1610. Tongue 1610 and connecting portion 1650 may be formed of a printed circuit board.
(51) Housing 1650 may reside on a second printed circuit board (tongue 1610 and connecting portion 1670 being the first printed circuit board), such as a main logic board (not shown.) Posts 1652 may be inserted into openings in the second printed circuit board. Tabs 1662 and contact tails of contacts 1640 may also be inserted into openings holes in the second printed circuit board. Tabs 1662 may connect to a ground plane or traces supported by the second printed circuit board. Contact tails of contacts 1640 may connect to traces, power, or ground on the second printed circuit board. Shield 1660 may substantially cover a rear, top, and left and right sides of housing 1650.
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(53) Contacts 1620 may be electrically connected to traces in, on, or otherwise supported by, tongue 1610 and connecting portion 1670. These traces may connect to through-hole contact portions 1642 of contacts 1640. Contacts 1640 may emerge from a bottom of housing 1650 to form electrical connections with traces in a second printed circuit board.
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(59) Tongue 2010 may be formed in various ways. For example, tongue 2010 may be insert molded around central ground plane 2010. Contacts 2020 may later be inserted into the structure including tongue 2010. In other embodiments of the present invention, tongue 2010 may be insert molded around contacts 2020 and central ground plane 2210. In still other embodiments of the present invention, tongue 2010 may be formed, and contacts 2020 and central ground plane 2210 may later be fit into the structure.
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(61) During assembly, openings 2072 on connecting portion 2070 may fit over tabs 2324 to secure connecting portion 2070 to housing 2050, which again may be made up of housing portions 2310 and 2320. Tabs 2068 on shield 2060 may fit in cutouts 2074 on connecting portion 2070 to hold shield 2060 in place.
(62) In various embodiments of the present invention, contacts, shields, and other conductive portions of interposers and other connecting structures may be formed by stamping, metal-injection molding, machining, micro-machining, 3-D printing, or other manufacturing process. The conductive portions may be formed of stainless steel, steel, copper, copper titanium, phosphor bronze, or other material or combination of materials. They may be plated or coated with nickel, gold, or other material. The nonconductive portions, such as the housings and device enclosures, may be formed using injection or other molding, 3-D printing, machining, or other manufacturing process. The nonconductive portions may be formed of silicon or silicone, rubber, hard rubber, plastic, nylon, liquid-crystal polymers (LCPs), or other nonconductive material or combination of materials. The printed circuit boards and tongues used may be formed of FR-4, BT or other material. Printed circuit boards may be replaced by other substrates, such as flexible circuit boards, in many embodiments of the present invention.
(63) Embodiments of the present invention may provide interposes and connecting structures that may be located in, and may connect to, various types of devices, such as portable computing devices, tablet computers, desktop computers, laptops, all-in-one computers, wearable computing devices, cell phones, smart phones, media phones, storage devices, portable media players, navigation systems, monitors, power supplies, adapters, remote control devices, chargers, and other devices. These interposes and connecting structures may provide pathways for signals that are compliant with various standards such as Universal Serial Bus (USB) including USB-C, High-Definition Multimedia Interface (HDMI), Digital Visual Interface (DVI), Ethernet, DisplayPort, Thunderbolt, Lightning, Joint Test Action Group (JTAG), test-access-port (TAP), Directed Automated Random Testing (DART), universal asynchronous receiver/transmitters (UARTs), clock signals, power signals, and other types of standard, non-standard, and proprietary interfaces and combinations thereof that have been developed, are being developed, or will be developed in the future. Other embodiments of the present invention may provide interposes and connecting structures that may be used to provide a reduced set of functions for one or more of these standards. In various embodiments of the present invention, these interconnect paths provided by these interposes and connecting structures may be used to convey power, ground, signals, test points, and other voltage, current, data, or other information.
(64) The above description of embodiments of the invention has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form described, and many modifications and variations are possible in light of the teaching above. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications to thereby enable others skilled in the art to best utilize the invention in various embodiments and with various modifications as are suited to the particular use contemplated. Thus, it will be appreciated that the invention is intended to cover all modifications and equivalents within the scope of the following claims.