MODULE

Abstract

A module is provided that includes a wiring substrate having a major surface, a plurality of components mounted on the major surface, and a conductor incorporated resin body mounted on the major surface. Moreover, the conductor incorporated resin body is disposed between the plurality of components and includes a conductor pattern therein that is grounded.

Claims

1. A module comprising: a wiring substrate having a first surface; a plurality of components mounted on the first surface; and a conductor incorporated resin body mounted on the first surface and that is disposed between the plurality of components, wherein the conductor incorporated resin body including a conductor pattern therein that is grounded.

2. The module according to claim 1, wherein the conductor incorporated resin body includes a wall-shaped portion having the conductor pattern disposed therein, with the conductor pattern being a linear pattern.

3. The module according to claim 2, further comprising a sealing resin that seals at least one component of the plurality of components on the first surface of the wiring substrate.

4. The module according to claim 3, wherein the wall-shaped portion is disposed to isolate a portion of the sealing resin from another portion thereof.

5. The module according to claim 3, further comprising a shield film that covers an upper surface of the sealing resin and a side surface of the sealing resin.

6. The module according to claim 5, wherein the shield film is grounded, and the conductor pattern is electrically connected to the shield film.

7. The module according to claim 6, wherein the shield film is electrically connected to a ground electrode provided to the wiring substrate.

8. The module according to claim 2, wherein the conductor incorporated resin body includes a conductor via therein, and the conductor pattern and the conductor via are combined to form a conductor structure.

9. The module according to claim 1, wherein the conductor incorporated resin body is disposed so as to straddle at least one component of the plurality of components.

10. The module according to claim 1, wherein the conductor incorporated resin body is disposed so as to include a portion overlapping an upper side of at least one component of the plurality of components.

11. The module according to claim 1, wherein the conductor incorporated resin body is a multilayer resin body.

12. The module according to claim 11, wherein the multilayer resin body comprises a plurality of resin layers with the conductor pattern being disposed between opposing surfaces of the plurality of resin layers.

13. The module according to claim 12, further comprising a plurality conductor vias disposed in at least a portion of the plurality of resin layers and that penetrate the respective resin layers in a thickness-wise direction to electrically connect the conductor pattern.

14. The module according to claim 12, wherein the multilayer resin body comprises the conductor pattern being divided into a plurality of individual pieces, with a plurality of conductor vias penetrating the respective resin layers and disposed in a shifted position.

15. The module according to claim 1, wherein one or more components of the plurality of components are also mounted on a second surface of the wiring substrate opposite to the first surface.

16. The module according to claim 1, wherein the conductor incorporated resin body comprises an L-shaped conductor in a plan view of the first surface of the wiring substrate.

17. The module according to claim 16, wherein an entire periphery of one or more components of the plurality of components is surrounded by the conductor in the plan view of the first surface of the wiring substrate.

18. The module according to claim 12, wherein the conductor incorporated resin body is disposed on the first surface between at least two of the plurality of components relative to a plan view of the first surface of the wiring substrate.

19. A module comprising: a wiring substrate having first surface; a plurality of components mounted on the first surface; a resin body mounted on the first surface and that is disposed between at least two components of the plurality of components; a sealing resin that seals at least one of the two component; and a shield film that covers at least an upper surface of the sealing resin, wherein the resin body includes a conductor pattern therein that is grounded by being electrically connected to the shield film.

20. The module according to claim 19, wherein the shield film is electrically connected to a ground electrode provided to wiring substrate.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0009] FIG. 1 is a perspective view of a module according to a first exemplary embodiment.

[0010] FIG. 2 is a transparent plan view of the module according to the first exemplary embodiment.

[0011] FIG. 3 is a cross section taken along a line indicated in FIG. 2.

[0012] FIG. 4 is an exploded view of a conductor incorporated resin body included in the module according to the first exemplary embodiment.

[0013] FIG. 5 is a transparent plan view of a module according to a second exemplary embodiment.

[0014] FIG. 6 is a cross section taken along a line VI-VI indicated in FIG. 5.

[0015] FIG. 7 is an exploded view of a conductor incorporated resin body included in the module according to the second exemplary embodiment.

[0016] FIG. 8 is a cross section of a module according to a third exemplary embodiment.

[0017] FIG. 9 is a cross section of a module according to a fourth exemplary embodiment.

[0018] FIG. 10 is a cross section of a module according to a fifth exemplary embodiment.

[0019] FIG. 11 is a transparent plan view of a module according to a sixth exemplary embodiment.

[0020] FIG. 12 is a cross section taken along a line XII-XII indicated in FIG. 11.

[0021] FIG. 13 is a transparent plan view of a module according to a seventh exemplary embodiment.

[0022] FIG. 14 is a cross section taken along a line XIV-XIV indicated in FIG. 13.

[0023] FIG. 15 is a first perspective view of a conductor incorporated resin body included in the module according to the seventh exemplary embodiment.

[0024] FIG. 16 is a second perspective view of the conductor incorporated resin body included in the module according to the seventh exemplary embodiment.

[0025] FIG. 17 is a transparent plan view of a module according to an eighth exemplary embodiment.

[0026] FIG. 18 is a cross section taken along a line XVIII-XVIII indicated in FIG. 17.

[0027] FIG. 19 is a first perspective view of a conductor incorporated resin body included in the module according to the eighth exemplary embodiment.

[0028] FIG. 20 is a second perspective view of the conductor incorporated resin body included in the module according to the eighth exemplary embodiment.

[0029] FIG. 21 is a perspective view of a conductor incorporated resin body included in a modified example of the module according to the eighth exemplary embodiment.

[0030] FIG. 22 is a cross section of a module according to a ninth exemplary embodiment.

DETAILED DESCRIPTION OF EMBODIMENTS

[0031] In general, the figures indicate a dimensional ratio, which does not necessarily provide a representation according to scale, and may be exaggerated for convenience of illustration. In the following description, when referring to a concept of being upper or lower, it does not necessarily mean being absolutely upper or lower and may instead mean being relatively upper or lower in a position shown in a figure.

First Exemplary Embodiment

[0032] A module according to a first exemplary embodiment will now be described with reference to FIGS. 1 to 4. FIG. 1 shows an external view of a module 101 according to the present embodiment. Module 101 has upper and side surfaces covered with a shield film 8. A sealing resin 6 (see FIG. 3), which will be described hereinafter, is disposed in a space inside shield film 8. A transparent plan view of module 101 is shown in FIG. 2. For purposes of this disclosure, the phrase “transparent plan view” as referred to herein means a plan view in a state in which shield film 8 covering the upper surface of module 101 is removed and sealing resin 6 introduced in the space inside shield film 8 is also removed. In the other following embodiments as well, when a “transparent plan view” is referred to, it shall mean a similar plan view. FIG. 3 is a cross section taken along a line indicated in FIG. 2. Note, however, that the cross section shows a state in which shield film 8 and sealing resin 6 covering the upper surface are present. The same applies to the other following embodiments.

[0033] In this aspect, module 101 comprises a wiring substrate 1 having a major surface 1a (e.g., a first principal surface), a plurality of components 3a to 3f mounted on major surface 1a, and a conductor incorporated resin body 201 mounted on major surface 1a. Conductor incorporated resin body 201 includes a conductor pattern 211 therein. Conductor pattern 211 is grounded. Conductor pattern 211 is grounded by electrically connecting shield film 8 formed on the side surface of module 101 to conductor pattern 211, and furthermore, electrically connecting shield film 8 to a GND electrode provided to wiring substrate 1. Wiring substrate 1 has a lower surface 1b (e.g., a second principal surface) as a surface opposite to major surface 1a. An external electrode 15 is disposed on lower surface 1b. A conductor pattern 14 and a conductor via 16 are appropriately disposed in wiring substrate 1. In the example shown in FIG. 3, conductor via 16 connected to external electrode 15 is shown.

[0034] FIG. 4 is an exploded view of conductor incorporated resin body 201. Conductor incorporated resin body 201 is formed, for example, by stacking a plurality of resin layers 212 and bonding them together by thermal compression bonding. Conductor pattern 211 is formed on some of the plurality of resin layers 212. Conductor pattern 211 is disposed on one or opposite surfaces of resin layer 212. In this way, conductor incorporated resin body 201 is configured as a multilayer resin substrate.

[0035] As shown in FIG. 2, components 3a, 3b, 3c, 3d, 3e and 3f are mounted on major surface 1a of wiring substrate 1. Sealing resin 6 is disposed to seal component 3a, 3b, 3c, 3d, 3e and 3f. Shield film 8 is formed so as to cover upper and side surfaces of sealing resin 6. Moreover, conductor pattern 211 is electrically connected to a portion of shield film 8 covering the side surface of sealing resin 6.

[0036] While wiring substrate 1 is a low temperature co-sintered ceramic substrate, it may be a resin substrate. The sealing resin is, for example, epoxy resin. The conductor incorporated resin body is, for example, a stack of resin sheets each having a copper foil attached thereto with a prescribed pattern formed. The resin sheet is made of a thermoplastic resin. The thermoplastic resin as referred to herein is, for example, any of liquid crystal polymer (LCP), polyether ether ketone (PEEK), thermoplastic polyimide (thermoplastic PI), thermoplastic fluororesin, and the like.

[0037] In the present embodiment, conductor incorporated resin body 201 includes a wall-shaped portion 219 (or simply a “wall”). In an example indicated in the present embodiment, conductor incorporated resin body 201 is entirely wall-shaped portion 219. Moreover, conductor pattern 211 is disposed in the wall-shaped portion and can be a linear pattern in an exemplary aspect.

[0038] In the exemplary aspect, conductor incorporated resin body 201 has an L-shape in plan view. Moreover, conductor incorporated resin body 201 has opposite ends electrically connected to shield film 8. In one aspect, conductor incorporated resin body 201 is disposed between components 3c and 3f Furthermore, conductor incorporated resin body 201 is disposed between components 3c and 3b. That is, conductor incorporated resin body 201 is disposed between a plurality of mounted components. In the present embodiment, component 3c is disposed with two sides thereof surrounded by the L-shaped conductor incorporated resin body 201 as shown in FIG. 2, for example. When attention is paid to a combination of the L-shaped conductor incorporated resin body 201 and shield film 8, component 3c has its periphery entirely surrounded by a conductor in plan view. That is, conductor incorporated resin body 201 is disposed so as to isolate a portion of sealing resin 6 from another portion thereof and conductor pattern 211 is connected to shield film 8.

[0039] In the present embodiment, conductor incorporated resin body 201 having conductor pattern 211 incorporated therein is mounted on major surface 1a of wiring substrate 1, and conductor incorporated resin body 201 is configured as a shield. Conductor incorporated resin body 201 is only mounted on major surface 1a, and laser processing is not required for mounting it in an exemplary aspect. Therefore, the wiring substrate is not damaged.

[0040] As described above, in the present embodiment, a shield can be disposed in a vicinity of a mounted component without damaging a wiring substrate.

[0041] As has been indicated in the present embodiment, preferably, the conductor incorporated resin body 201 comprised by the module includes a wall-shaped portion, the wall-shaped portion has the conductor pattern disposed therein, and the conductor pattern is a linear pattern. With this configuration, the conductor incorporated resin body can be mounted while occupying a small area, and a shield can be configured by the incorporated conductor pattern. While the example indicated in the present embodiment is predicated on that conductor incorporated resin body 201 is entirely wall-shaped portion 219, the conductor incorporated resin body may have a structure including a wall-shaped portion and a portion other than the wall-shaped portion. That is, preferably, at least a part of the conductor incorporated resin body is a wall-shaped portion.

[0042] As indicated in the present embodiment, preferably, sealing resin 6 that seals the component on major surface 1a is provided, and the wall-shaped portion is disposed so as to isolate a portion of sealing resin 6 from another portion. By adopting this configuration, a compartment shield is implemented.

[0043] As indicated in the present embodiment, preferably, shield film 8 that covers the upper and side surfaces of sealing resin 6 is provided, shield film 8 is grounded, and the wall-shaped portion is disposed so that the conductor pattern is electrically connected to shield film 8. By adopting this configuration, a shield configured by the wall-shaped portion of the conductor incorporated resin body can be grounded by the surrounding shield film 8, and the entire shield can thus be grounded efficiently.

[0044] While the present embodiment has been described by referring to an example in which conductor incorporated resin body 201 is formed by stacking a plurality of resin layers 212 and bonding them together by thermal compression bonding, that is, a multilayer resin substrate, the “conductor incorporated resin body” is not limited to a multilayer resin substrate. The conductor incorporated resin body may be any object formed of resin with some conductor incorporated therein. It is noted that the conductor incorporated resin body implemented by a multilayer resin substrate has been indicated by way of example. Moreover, the conductor incorporated resin body can be produced in a different method.

[0045] The conductor incorporated resin body is preferably a multilayer resin body. By adopting this configuration, the conductor incorporated resin body can be produced by stacking resin layers, and thus easily formed in a desired structure.

Second Exemplary Embodiment

[0046] A module according to a second exemplary embodiment will now be described with reference to FIGS. 5 to 7. FIG. 5 is a transparent plan view of a module 102 in the present embodiment. FIG. 6 is a cross section taken along a line VI-VI indicated in FIG. 5.

[0047] Module 102 comprises a conductor incorporated resin body 202 instead of conductor incorporated resin body 201. Conductor incorporated resin body 202 is mounted on major surface 1a of wiring substrate 1. FIG. 7 is an exploded view of conductor incorporated resin body 202. A conductor via 213 is formed in some of the plurality of resin layers 212. As shown, conductor via 213 penetrates resin layer 212 in a thickness-wise direction. Conductor incorporated resin body 202 has conductor patterns 211 electrically interconnected by conductor via 213. As shown in FIG. 5, conductor pattern 211 has an L-shape, and conductor via 213 is located at a corner of conductor pattern 211. At the corner of conductor pattern 211, a plurality of conductor vias 213 are provided contiguously in the thickness-wise direction. Conductor incorporated resin body 202 includes wall-shaped portion 219.

[0048] The remainder in configuration is similar to module 101 described in the first embodiment. In the configuration of the present embodiment, conductor pattern 211 and conductor via 213 are connected to each other, and conductor pattern 211 can be connected to the GND electrode of wiring substrate 1 via conductor via 213. Therefore, the conductor incorporated resin body can have conductor pattern 211 grounded even if wiring pattern 211 is not electrically connected to shield film 8.

[0049] In general, it is noted that the present embodiment can have an effect similar to that described in the first embodiment.

Third Exemplary Embodiment

[0050] A module according to a third exemplary embodiment will now be described with reference to FIG. 8. FIG. 8 is a cross section of a module 103 in the present embodiment.

[0051] Module 103 comprises a conductor incorporated resin body 203 instead of conductor incorporated resin body 201. Conductor incorporated resin body 203 is mounted on major surface 1a of wiring substrate 1. In conductor incorporated resin body 203, when attention is paid to two conductor patterns 211 adjacent to each other in a vertical direction, a plurality of conductor vias 213 are disposed between these conductor patterns 211. When attention is paid to two resin layers 212 adjacent to each other in the vertical direction, conductor vias 213 penetrating these resin layers 212, respectively, are disposed so as to be shifted in position, rather than contiguous in the vertical direction. In other words, conductor incorporated resin body 203 includes conductor via 213 therein, and conductor pattern 211 and conductor via 213 are combined to form a structure made of a conductor.

[0052] The remainder in configuration is similar to module 101 described in the first embodiment. In general, it is noted that the present embodiment can have an effect similar to that described in the first embodiment.

Fourth Exemplary Embodiment

[0053] A module according to a fourth exemplary embodiment will now be described with reference to FIG. 9. FIG. 9 is a cross section of a module 104 in the present embodiment.

[0054] As shown, module 104 comprises a conductor incorporated resin body 204 instead of conductor incorporated resin body 201. Conductor incorporated resin body 204 is mounted on major surface 1a of wiring substrate 1. Conductor incorporated resin body 204 has conductor pattern 211 divided into small pieces. Conductor patterns 211 are interconnected by conductor via 213. A plurality of conductor vias 213 are disposed contiguously in the thickness-wise direction.

[0055] In general, it is noted that the present embodiment can have an effect similar to that described in the first embodiment. Further, the conductor pattern is choppy, which suppresses generation of an eddy current caused by an electromagnetic wave.

Fifth Exemplary Embodiment

[0056] A module according to a fifth exemplary embodiment will now be described with reference to FIG. 10. FIG. 10 is a cross section of a module 105 in the present embodiment.

[0057] Module 105 comprises a conductor incorporated resin body 205 instead of conductor incorporated resin body 201. Conductor incorporated resin body 205 is mounted on major surface 1a of wiring substrate 1. Conductor incorporated resin body 205 has conductor pattern 211 divided into small pieces. When attention is paid to two resin layers 212 adjacent to each other in the vertical direction, conductor vias 213 penetrating these resin layers 212, respectively, are disposed so as to be shifted in position, rather than contiguous in the vertical direction.

[0058] In the example indicated herein, conductor vias 213 are further provided on an upper surface of that conductor pattern 211 in conductor incorporated resin body 205 which is located on an uppermost side, and these conductor vias 213 are electrically connected to shield film 8 covering an upper surface of sealing resin 6. Thus electrically connecting conductor pattern 21 to shield film 8 covering the upper surface of sealing resin 6 is preferable as doing so can provide more reliable grounding. This also applies to the other embodiments.

[0059] In general, it is noted that the present embodiment can have an effect similar to that described in the first embodiment. In module 105, conductor incorporated resin body 205 has conductor pattern 211 cut at dispersed locations, and can thus be larger in strength than conductor incorporated resin body 204.

Sixth Exemplary Embodiment

[0060] A module according to a sixth exemplary embodiment will now be described with reference to FIGS. 11 and 12. FIG. 11 is a transparent plan view of a module 106 in the present embodiment. FIG. 12 is a cross section taken along a line XII-XII indicated in FIG. 11.

[0061] As shown, module 106 has component 3a, 3b, 3c, 3d, 3d1, 3e and 3f mounted on major surface 1a of wiring substrate 1. Module 106 comprises a conductor incorporated resin body 206. Conductor incorporated resin body 206 is mounted on major surface 1a of wiring substrate 1. Conductor incorporated resin body 206 is disposed so as to straddle component 3d1.

[0062] As shown in FIG. 12, conductor incorporated resin body 206 has a wall-shaped structure with a notch 214 (e.g., an opening or cavity) in a side view. Two components 3d1 are accommodated in notch 214. While an example with two components 3d1 accommodated is shown, this is merely an example and it is noted that the type, number, and size of the components are not limited to those indicated. Conductor incorporated resin body 206 may straddle more components. Conductor incorporated resin body 206 may straddle a combination of different types of components. Conductor incorporated resin body 206 may not have notch 214 only at one location, and may instead have it at two or more locations.

[0063] In general, it is noted that the present embodiment can have an effect similar to that described in the first embodiment. The present embodiment provides the conductor incorporated resin body in a structure so as to straddle a component, and thus, in plan view, allows the component to be disposed in a space occupied by the conductor incorporated resin body and can thus ensure a larger space for mounting components.

Seventh Exemplary Embodiment

[0064] A module according to a seventh exemplary embodiment will now be described with reference to FIGS. 13 to 16. FIG. 13 is a transparent plan view of a module 107 in the present embodiment. FIG. 14 is a cross section taken along a line XIV-XIV indicated in FIG. 13.

[0065] Module 107 has components 3a, 3b, 3c, 3d, and 3e mounted on major surface 1a of wiring substrate 1. Module 107 comprises a conductor incorporated resin body 207. Conductor incorporated resin body 207 is mounted on major surface 1a of wiring substrate 1.

[0066] Conductor incorporated resin body 207 is disposed so as to include a portion overlapping an upper side of component 3c. Conductor incorporated resin body 207 is in the form of a box. As shown in FIG. 14, conductor incorporated resin body 207 has a cavity 216. Component 3c is accommodated in cavity 216. Sealing resin 6 fills a surrounding of component 3c.

[0067] FIG. 15 shows conductor incorporated resin body 207 alone extracted and viewed from above obliquely. FIG. 16 shows conductor incorporated resin body 207 viewed from below obliquely. A slit 215 serves as an entrance for sealing resin 6 to flow into cavity 216.

[0068] The present embodiment can have an effect similar to that described in the first embodiment. The present embodiment can more reliably provide a shield for component 3c disposed in cavity 216.

Eighth Exemplary Embodiment

[0069] A module according to an eighth exemplary embodiment will now be described with reference to FIG. 17. FIG. 17 is a transparent plan view of a module 108 in the present embodiment. FIG. 18 is a cross section taken along a line XVIII-XVIII indicated in FIG. 17.

[0070] Module 108 has components 3a, 3b, 3c, 3d, and 3e mounted on major surface 1a of wiring substrate 1. Module 108 comprises a conductor incorporated resin body 208. Conductor incorporated resin body 208 is mounted on major surface 1a of wiring substrate 1. FIG. 19 shows conductor incorporated resin body 208 alone extracted and viewed from above obliquely. FIG. 20 shows conductor incorporated resin body 208 viewed from below obliquely.

[0071] As shown, conductor incorporated resin body 208 is disposed so as to include a portion overlapping an upper side of component 3c. Conductor incorporated resin body 208 has four sides with two sides thereof each having a side surface opened. As shown in FIG. 18, conductor incorporated resin body 208 has a notch 217. Component 3c is accommodated in notch 217.

[0072] In general, it is noted that the present embodiment can have an effect similar to that described in the first embodiment. Module 108 has conductor incorporated resin body 208 with two side surfaces opened and thus allows sealing resin 6 to smoothly flow into notch 217.

[0073] As a modified example of the present embodiment, a module may include a conductor incorporated resin body 209 as shown in FIG. 21 instead of conductor incorporated resin body 208. Conductor incorporated resin body 209 has four sides each having a plate-shaped member configuring a side surface. At least one of the four sides has the plate-shaped member with an opening 218 provided therethrough. Opening 218 is provided for allowing sealing resin 6 to flow into cavity 216. While herein one side surface is provided with only one opening 218 by way of example, one side surface may be provided with a plurality of openings 218.

Ninth Exemplary Embodiment

[0074] A module according to a ninth exemplary embodiment will now be described with reference to FIG. 22. FIG. 22 is a cross section of a module 109 in the present embodiment.

[0075] Module 109 has a double-sided mounting structure. That is, module 109 also has one or more components mounted on a surface of wiring substrate 1 opposite to major surface 1a. In the example shown in FIG. 22, components 3h, 3i, and 3j are mounted on lower surface 1b. A sealing resin 6a is disposed so as to cover major surface 1a, components 3a, 3b, and the like. A sealing resin 6b is disposed so as to cover lower surface 1b and components 3h, 3i, and 3j. On lower surface 1b, a columnar conductor 17 is provided so as to penetrate through sealing resin 6b. An end surface of lower surface 1b located on a side farther away from wiring substrate 1 is exposed from sealing resin 6b and serves as an external connection terminal. The end surface may further be soldered. Any or all of components 3h, 3i, and 3j may be exposed from sealing resin 6b.

[0076] In general, it is noted that the present embodiment can have an effect similar to that described in the first embodiment. Further, the present embodiment that adopts a double-sided mounting structure allows wiring substrate 1 having a limited area to comprise more components. While herein the configuration of the first embodiment is modified to form a double-sided mounting structure by way of example, those of the other embodiments may be modified to form a double-sided mounting structure.

[0077] In general, it is noted that a plurality of the above embodiments may be combined as appropriate and employed. Moreover, it should be understood that the embodiments disclosed herein are illustrative and non-restrictive in any respect.

REFERENCE SIGNS LIST

[0078] 1 wiring substrate, 1a major surface, 1b lower surface, 2 insulating layer, 3a, 3b, 3c, 3d, 3e, 3f, 3h, 3i, 3j component, 6, 6a, 6b sealing resin, 8 shield film, 14 conductor pattern, 15 external electrode, 16 conductor via, 17 columnar conductor, 101, 102, 103, 104, 105 106, 107, 108, 109 module, 201, 202, 203, 204, 205, 206, 207, 208, 209 conductor incorporated resin body, 211, 211x conductor pattern, 212 resin layer, 213 conductor via, 214, 217 notch, 215 slit, 216 cavity, 218 opening, 219 wall-shaped portion.