Interposer

Abstract

To provide an interposer that can further improve electrical characteristics.SOLUTION: In an interposer, first signal contacts 20A and second signal contacts 20B are respectively arranged on through-holes formed adjacent to each other along a width direction of the contacts, of a plurality of through-holes of a housing. Grounding contacts 20C are arranged at the through-holes positioned at both sides of the pairs 20P of the signal contacts of a plurality of through-holes of the housing. The plurality of contacts including the signal contacts and the grounding contacts respectively have base parts 21A that are press-fitted into the through-holes, and further respectively have first contact beams 22A and 22B extending from the base parts to outside of a first surface of the housing and having first contact parts at tip parts thereof and second contact beams 23A and 23B extending from the base parts to outside of a second surface of the housing and having second contact parts at tip parts thereof.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to an interposer. [Background technology]

[0002] Interposers are known that are provided between two electronic components to electrically connect them. Such interposers include a housing with a plurality of through holes and a plurality of contacts inserted and held in each of the through holes.

[0003] The contacts constituting the interposer include a base portion disposed in the through-hole of the housing and held by the housing, and two contact beams extending from the base portion to the two main surfaces of the housing, respectively. The multiple contacts may include a signal contact pair consisting of two signal contacts that are arranged adjacent to each other in the width direction and are responsible for transmitting signals. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] US Patent Publication No. 2021 / 0028569 Summary of the Invention [Problem to be solved by the invention]

[0005] Further improvements in the electrical characteristics of the interposer are desired.

[0006] In view of the above circumstances, an object of the present disclosure is to provide an interposer that can further improve electrical characteristics. [Means for solving the problem]

[0007] In order to achieve the above object, in the present disclosure, a housing main body portion having a first surface facing the first electronic component side of the two electronic components and a second surface facing the second electronic component side of the two electronic components, and a plurality of through holes penetrating between the first surface and the second surface, a housing, and a base press-fitted into the through hole, a first signal contact beam extending outward from the base beyond the first surface and having a first contact portion contacting the first electrical component at the tip, and a second signal contact beam extending outward from the base beyond the second surface and having a second contact portion contacting the second electrical component at the tip, and a signal contact pair having two signal contacts adjacent to each other at a predetermined interval along the width direction of the signal contact are provided, the signal contact has an opening formed by the base and the first signal contact beam and an opening formed by the base and the second signal contact beam, An interposer is provided which has a protruding portion that locally protrudes toward the opening side from at least one of the base and the signal contact beam in at least one of the two signal contacts.

Advantages of the Invention

[0008] According to the interposer of the present disclosure, it is possible to further improve the electrical characteristics.

Brief Description of the Drawings

[0009]

Figure 1A

Figure 1B

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, the interposer of the present disclosure will be described.

[0011] First, the overall configuration of the interposer of the present disclosure will be described. Then, as will be described later, the characteristic portions of the present disclosure will be described.

[0012] FIG. 1A is a perspective view schematically showing the interposer of the present disclosure. FIG. 2 is a partial enlarged perspective view schematically showing the interposer of the present disclosure in the portion surrounded by the dotted line in FIG. 1A. FIG. 3 is a partial enlarged cross-sectional view schematically showing the interposer of the present disclosure in the portion surrounded by the dotted line as viewed from between A-A in FIG. 2. FIG. 4 is a perspective view schematically showing an example of a contact including a signal contact having a characteristic configuration in the interposer of the present disclosure.

[0013] As shown in FIG. 1A, the interposer 100 of the present disclosure generally includes a housing 10 and a plurality of contacts 20.

[0014] The housing 10 has a housing main body 11 having two mutually corresponding main surfaces (a first surface 11X and a second surface 11Y), and a plurality of through holes 12 penetrating between the two main surfaces (between the first surface 11X and the second surface 11Y).

[0015] The above-mentioned first surface 11X may be the surface facing the first electronic component 210 among the two electronic components 200. The second surface 11Y may be the surface facing the second electronic component 220 among the two electronic components 200 (see FIG. 1B).

[0016] Although not particularly limited, as an example of the above-mentioned first electronic component 210, an IC (Integrated circuit) can be cited. Also, as an example of the above-mentioned second electronic component 220, a circuit board can be cited. In this case, the interposer 100 of the present disclosure functions as an intermediary for signal transmission between the circuit board and the IC.

[0017] In FIG. 1A, as an example, a mode is shown in which a plurality of through holes 12 are provided in a lattice pattern in a local portion of the housing main body 11, but it is not limited thereto, and a plurality of through holes 12 may be provided in a lattice pattern for most of the housing main body 11. As the material constituting the housing 10, any material having insulating properties may be used, and for example, a thermoplastic resin material may be selected.

[0018] Also, as shown in FIGS. 2 to 4, the plurality of contacts 20 include signal contacts (or also referred to as signal contacts) for transmitting signals and ground contacts 20C (or also referred to as ground contacts) for grounding. As the material constituting the contact 20, any metal material having electrical conductivity may be used, and for example, copper may be selected.

[0019] The above-mentioned signal contacts may have the same shape as each other, while including a first signal contact 20A and a second signal contact 20B whose arrangement directions are opposite to each other. The first signal contact 20A and the second signal contact 20B are adjacent to each other (i.e., form a pair) with a predetermined interval along the width direction of the signal contact, constituting a signal contact pair 20P.

[0020] The ground contact 20C can be arranged between mutually adjacent signal contact pairs 20P and outside the signal contact pairs 20P in consideration of the electrical characteristics of the interposer 100 of the present disclosure. That is, the ground contact 20C can be arranged on both sides of each signal contact pair 20P.

[0021] The ground contact 20C may have the same shape as the first signal contact 20A and the second signal contact 20B as shown in FIGS. 2 to 4, or may have a shape different from that of the first signal contact 20A and the second signal contact 20B.

[0022] When describing the contacts in this specification and the drawings, the components of the first signal contact are suffixed with "A" at the end, the components of the second signal contact are suffixed with "B" at the end, and the components of the ground contact are suffixed with "C" at the end.

[0023] The first signal contact 20A and the second signal contact 20B can be respectively arranged in through holes 12 adjacent to each other along the width direction of the contacts among the plurality of through holes 12 of the housing 10. The ground contact 20C can be arranged in through holes 12 located on both sides of the signal contact pair 20P among the plurality of through holes 12 of the housing 10.

[0024] In addition, the plurality of contacts 20 including the signal contacts and the ground contact 20C each have a base portion that can be press-fitted into the through hole 12. By such press-fitting, when the signal contact is press-fitted into the through hole, it bites into the inner wall surface of the through hole 12, making it possible to hold the signal contact in the through hole 12.

[0025] In addition to this, the plurality of contacts 20 may have a first contact beam that extends outward from the base portion beyond the first surface 11X of the housing 10 and has a first contact portion at the tip. Furthermore, the plurality of contacts 20 may have a second contact beam that extends outward from the base portion beyond the second surface of the housing 10 and has a second contact portion at the tip.

[0026] When the above-mentioned first electronic component 210 is an IC, on the surface of the housing 10 of the IC facing the first surface 11X side, connection pads are provided at positions corresponding to each of the signal contacts and for transmitting signals. When the IC is mounted, the first contact portions of the respective signal contacts can be electrically contacted with the connection pads.

[0027] Also, when the above-mentioned second electronic component 220 is a circuit board, on the surface of the circuit board facing the second surface 11Y side of the housing 10, connection pads are provided at positions corresponding to each of the signal contacts and for transmitting signals. When the interposer 100 of the present disclosure is mounted on the circuit board, the second contact portions of the respective signal contacts are electrically contacted with the connection pads on the circuit board.

[0028] Regarding the first signal contact 20A, as shown in FIGS. 2 to 4, the first signal contact 20A has a base portion 21A, a first signal contact beam 22A, and a second signal contact beam 23A.

[0029] The first signal contact 20A has two openings 27A (a first opening 27AI and a second opening 27AII) formed by the base portion 21A and the signal contact beams 22A and 23A. This opening 27A is a space region surrounded by the base portion 21A and each signal contact beam continuous therewith.

[0030] The first signal contact beam 22A extends outward from the base portion 21A beyond the first surface 11X of the housing 10 (also refer to FIG. 1A), and has the above-mentioned first first contact portion 24A at the tip portion 28A. The second signal contact beam 23A extends outward from the base portion 21A beyond the second surface of the housing 10 (corresponding to 11Y in FIG. 1A), and has the above-mentioned second contact portion 25A at the tip portion 29A.

[0031] Similarly, regarding the second signal contact 20B, as shown in FIGS. 2 to 4, the second signal contact 20B has a base portion 21B, a first signal contact beam 22B, and a second signal contact beam 23B.

[0032] The second signal contact 20B has two openings 27B (a first opening 27BI and a second opening 27BII) formed by the base portion 21B and the signal contact beams 22B and 23B. This opening 27B is a spatial region surrounded by the base portion 21B and each signal contact beam continuous therewith.

[0033] The first signal contact beam 22B extends outward from the base portion 21B beyond the first surface 11X of the housing 10 (also refer to FIG. 1A), and has the above-mentioned first contact portion 24B at its tip portion 28B. The second signal contact beam 23B extends outward from the base portion 21B beyond the second surface of the housing 10 (corresponding to 11Y in FIG. 1A), and has the above-mentioned second contact portion 25B at its tip portion 29B.

[0034] In each of the signal contacts 20A and 20B, due to the presence of the opening, the signal contact, particularly the signal contact beam, can have an elastic function. By having such an elastic function, the contact area of the signal contact with the electronic component 200 can be made larger compared to the case where it does not have an elastic function. Specifically, the contact area between the contact portion of the signal contact beam and the connection pad can be made larger. Thereby, suitable contact between the electronic component 200 and the signal contact is ensured, and a suitable electrical connection between the two can be ensured.

[0035] As described above, after explaining the overall configuration of the interposer 100 of the present disclosure, the characteristic parts of the present disclosure will be described below.

[0036] The interposer 100 of the present disclosure is characterized by the configuration of its component contact 20, particularly the signal contact.

[0037] Specifically, in the present disclosure, in at least one of the above two signal contacts (the first signal contact 20A / the second signal contact 20B), there is a protruding portion that locally protrudes from at least one of the base portion and the signal contact beam toward the opening portion (corresponding to the space region surrounded by the base portion and the signal contact beam).

[0038] In the present disclosure, due to the presence of the above protruding portion, the area of the signal contact can be made larger compared to the case where there is no such protruding portion. By expanding the area of such a signal contact, it becomes easier to adjust the electrical characteristics of the interposer 100 of the present disclosure compared to the case where there is no protruding portion, and as a result, further improvement of the electrical characteristics of the interposer 100 can be achieved.

[0039] In addition to this, by expanding the area of the signal contact by the above protruding portion, the inclination of the contact during the insertion of the contact into the through hole 12 of the housing main body portion and during the press - fitting into the through hole 12 can be suppressed compared to the case where there is no protruding portion. That is, the above protruding portion can preferably function as a contact position stabilizing member (stabilizer).

[0040] In one example, as shown in FIGS. 3 and 4, the first signal contact 20A may have a protruding portion 26A that locally protrudes from the base portion 21A and the first signal contact beam 22A toward the first opening portion 27AI side. That is, in the first opening portion 27AI, a plurality of protruding portions 26A are located. In the illustrated aspect, two protruding portions 26A are present in the formation region of the first opening portion 27AI.

[0041] In addition to this, the first signal contact 20A may have a protruding portion 26A that locally protrudes from the base portion 21A and the second signal contact beam 23A toward the second opening portion 27AII side. That is, in the second opening portion 27AII, a plurality of protruding portions 26A are located. In the illustrated aspect, two protruding portions 26A are present in the formation region of the second opening portion 27AII.

[0042] From the above, in the aspects shown in FIGS. 3 and 4, the first signal contact 20A may have a plurality of protruding portions 26A. In the first signal contact 20A, the presence of a plurality of protruding portions 26A makes it easier to adjust the electrical characteristics of the above-mentioned interposer 100. As a result, the electrical characteristics of the interposer 100 can be further improved.

[0043] Furthermore, as shown in FIGS. 3 and 4, the second signal contact 20B may have a protruding portion 26B that locally protrudes from the base portion 21B and the first signal contact beam 22B toward the first opening 27BI side. That is, in the first opening 27BI, a plurality of protruding portions 26B are located. In the illustrated aspect, two protruding portions 26B are present in the formation region of the first opening 27BI.

[0044] In addition to this, the second signal contact 20B may have a protruding portion 26B that locally protrudes from the base portion 21B and the second signal contact beam 23B toward the second opening 27BII side. That is, in the second opening 27BII, a plurality of protruding portions 26B are located. In the illustrated aspect, two protruding portions 26B are present in the formation region of the second opening 27BII.

[0045] From the above, in the aspects shown in FIGS. 3 and 4, the second signal contact 20B may have a plurality of protruding portions 26B. The presence of a plurality of protruding portions 26B makes it easier to adjust the electrical characteristics of the above-mentioned interposer 100. As a result, the electrical characteristics of the interposer 100 can be further improved.

[0046] In the first signal contact 20A and / or the second signal contact 20B, from the viewpoint of suitably ensuring the elastic function of the signal contact beam, it is preferable that each of the plurality of protruding portions located in one opening is spaced apart from each other. In one example, as shown in FIGS. 3 and 4, when two protruding portions 26A are located in one opening 27A, they may be spaced apart from each other and may be opposed to each other. Similarly, when two protruding portions 26B are located in one opening 27B, they may be spaced apart from each other and may be opposed to each other. In this case, the opening itself may have an H-shaped configuration.

[0047] In particular, as in the above example, when both the first signal contact 20A and the second signal contact 20B have a plurality of protruding portions, as a whole, a larger number of protruding portions in the signal contact pair can be ensured. In the embodiment shown in FIGS. 3 and 4, eight protruding portions can be ensured in the signal contact pair. This makes it easier to further adjust the electrical characteristics of the above-described interposer 100. As a result, the electrical characteristics of the interposer 100 can be further improved.

[0048] In addition, if one or more of the above-described protruding portions are provided, it is not limited to the example shown in FIGS. 3 and 4. For example, the above-described protruding portion may protrude from at least one of the first signal contact beam and the second signal contact beam toward the opening side in the first signal contact 20A and / or the second signal contact 20B.

[0049] Further, the protruding portion may protrude from at least one side of the base of the first signal contact 20A and / or the second signal contact 20B toward the opening side. From the viewpoint of ensuring a plurality of the protruding portions, it is preferable that the protruding portions protrude from both sides of the bases 21A, 21B toward the opening side, respectively.

[0050] Furthermore, as described above, the protruding portion can preferably function as a contact position stabilizing member (stabilizer). Regarding the protruding portion of the contact, from the viewpoint of increasing the contact area with the inner wall surface of the through hole 12 of the housing 10 and facilitating contact with the inner wall surface, it is preferable to adopt the following configuration.

[0051] Specifically, the main surface sizes of the protruding portion protruding from the base portion and the protruding portion protruding from the signal contact beam may be made different. In this case, the protruding portion with the larger main surface size can be arranged to contact the inner wall surface of the through hole 12 of the housing 10. Specifically, the main surface size of the protruding portion protruding from the base portion can be made larger than the main surface size of the protruding portion protruding from the signal contact beam.

[0052] Hereinafter, the ground contact will be described. In one example, as shown in FIGS. 2 to 4, the ground contact 20C can have the same shape as the first signal contact 20A and the second signal contact 20B.

[0053] In another example, as shown in FIG. 5, the ground contact 20CI may have a shape different from that of the first signal contact 20A and the second signal contact 20B.

[0054] In yet another example, as shown in FIG. 6, the ground contact 20CII can have a protruding portion similar to the above-described signal contact in consideration of improving the electrical characteristics of the interposer 100 of the present disclosure. The ground contact 20C shown in FIG. 4 can also have a protruding portion similar to the above-described signal contact.

[0055] In the case of FIG. 4, the ground contact 20C may include a base portion 21C press-fitted into the through hole 12 of the housing 10, a first ground contact beam 22C extending outward from the base portion 21C beyond the first surface 11X of the housing main body portion 11, and a second ground contact beam 23C extending outward from the base portion 21C beyond the second surface 11Y of the housing main body portion 11. Under such a configuration, at least one of the base portion 21C and the ground contact beam may have a protruding portion 26C that locally protrudes toward the opening portion 27C side of the ground contact 20C.

[0056] The interposer 100 of the present disclosure is not limited to the above-described embodiments. Within the scope of the present disclosure, modifications may be made as appropriate.

[0057] The interposer of the present disclosure may adopt the following aspects. <1> A housing main body portion having a first surface facing the first electronic component side of the two electronic components and a second surface facing the second electronic component side of the two electronic components, and a plurality of through holes penetrating between the first surface and the second surface, and A base portion press-fitted into the through hole, a first signal contact beam extending outward from the base portion beyond the first surface and having a first contact portion in contact with the first electrical component at the tip, and a second signal contact beam extending outward from the base portion beyond the second surface and having a second contact portion in contact with the second electrical component at the tip, and a signal contact pair having two signal contacts adjacent to each other with a predetermined interval along the width direction of the signal contact. Comprising The signal contact has an opening formed by the base portion and the first signal contact beam, and an opening formed by the base portion and the second signal contact beam, An interposer, in at least one of the two signal contacts, having a protruding portion that locally protrudes from at least one of the base portion and the signal contact beam toward the opening side. <2> The interposer according to <1>, wherein the signal contact has a plurality of protruding portions. <3> The interposer according to <1> or <2>, wherein the protruding portion protrudes toward the opening side from at least one of the first signal contact beam and the second signal contact beam. <4> The interposer according to any one of <1> to <3>, wherein the protruding portion protrudes toward the opening side from at least one side of the base portion. <5> The interposer according to any one of <1> to <4>, wherein a plurality of the protruding portions are located in one of the openings. <6> The interposer according to <5>, wherein each of the plurality of protruding portions located in one of the openings is separated from each other. <7> The interposer according to <5> or <6>, wherein in one of the openings, the main surface sizes of the protruding portion protruding from the base portion and the protruding portion protruding from the signal contact beam are different. <8> The interposer according to <7>, wherein the main surface size of the protruding portion protruding from the base portion is larger than the main surface size of the protruding portion protruding from the signal contact beam. <9> The interposer according to any one of <6> to <8>, wherein one of the openings has an H-shaped configuration. <10> The interposer according to any one of <1> to <9>, further comprising ground contacts disposed on both sides of the signal contact pair. <11> The ground contact includes a base portion press-fitted into the through hole, a first ground contact beam extending outward from the base portion beyond the first surface, and a second ground contact beam extending outward from the base portion beyond the second surface, and has a protruding portion that locally protrudes toward the opening side from at least one of the base portion and the ground contact beam. The interposer according to <10>.

Industrial Applicability

[0058] The interposer of the present disclosure is used to electrically connect two electronic components.

Explanation of Signs

[0059] 200 Electronic component 210 First electronic component 220 Second electronic component 100 Interposer 10 Housing 11 Housing main body portion 11X First surface of the housing main body portion 11Y Second surface of the housing main body portion 12 Through hole 20 Contact 20A First signal contact 21A Base portion 22A First contact beam 23A Second contact beam 24A First contact portion of the first contact beam 25A Second contact portion of the second contact beam 26A Protruding portion of the first signal contact 27A Opening of the first contact beam 28A Tip portion of the first contact beam 29A Tip portion of the second contact beam 20B Second signal contact 21B Base portion 22B First contact beam 23B Second contact beam 24B First contact portion of the first contact beam 25B Second contact portion of the second contact beam 26B Protruding portion of the second signal contact 27B Opening of the first contact beam 28B Tip of the first contact beam 29B Tip of the second contact beam 20C, 20CI, 20CII Ground contact 20P Signal contact pair

Claims

1. A housing main body having a first surface facing the first electronic component side of two electronic components and a second surface facing the second electronic component side of the two electronic components, and a plurality of through holes penetrating between the first surface and the second surface, a housing, and A base press-fitted into the through hole, a first signal contact beam extending outward from the base beyond the first surface and having a first contact portion in contact with the first electrical component at the tip, and a second signal contact beam extending outward from the base beyond the second surface and having a second contact portion in contact with the second electrical component at the tip, a signal contact pair having two signal contacts adjacent to each other at a predetermined interval along the width direction of the signal contact Comprising The signal contact has an opening formed by the base and the first signal contact beam and an opening formed by the base and the second signal contact beam, An interposer having, in at least one of the two signal contacts, a protruding portion that locally protrudes from at least one of the base and the signal contact beam toward the opening side.

2. The interposer according to claim 1, wherein the signal contact has a plurality of protruding portions.

3. The interposer according to claim 1, wherein the protruding portion protrudes from at least one of the first signal contact beam and the second signal contact beam toward the opening side.

4. The interposer according to claim 1, wherein the protruding portion protrudes from at least one side of the base toward the opening side.

5. The interposer according to claim 1, wherein a plurality of the protruding portions are located in one of the openings.

6. The interposer according to claim 5, wherein each of the plurality of protruding portions located in one of the openings is spaced apart from each other.

7. The interposer according to claim 5, wherein, in one of the openings, the main surface sizes of the protruding portion protruding from the base and the protruding portion protruding from the signal contact beam are different.

8. The interposer according to claim 7, wherein the main surface size of the protruding portion protruding from the base is larger than the main surface size of the protruding portion protruding from the signal contact beam.

9. The interposer according to claim 6, wherein one of the openings has an H-shaped configuration.

10. The interposer according to claim 1, further comprising ground contacts disposed on both sides of the signal contact pair.

11. The interposer according to claim 10, wherein the ground contact includes a base portion press-fitted into the through hole, a first ground contact beam extending outward from the base portion beyond the first surface, and a second ground contact beam extending outward from the base portion beyond the second surface, and has a protruding portion that locally protrudes toward the opening side from at least one of the base portion and the ground contact beam.

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