Interposer

Abstract

To provide an interposer that can further improve electrical characteristics.SOLUTION: First signal contacts 20A and second signal contacts 20B are respectively arranged on through-holes 12 formed adjacent to each other along a width direction of the contacts, of a plurality of through-holes 12 of a housing 10. Grounding contacts 20C are arranged at the through-holes 12 positioned at both sides of the pairs of the signal contacts of the plurality of through-holes 12 of the housing 10. The plurality of contacts 20 including the signal contacts and the grounding contacts 20C respectively have base parts that are press-fitted into the through-holes 12, and further have first contact beams having first contact parts at tip parts thereof, which bite into inner wall surfaces of the through-holes 12 by the press-fitting thereinto to hold the signal contacts in the through-holes 12 and extend from the base parts to outside of a first surface 11X of the housing 10, when the signal contacts are press-fitted into the through-holes 12.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to an interposer.

Background Art

[0002] Conventionally, an interposer provided between two electronic components is known for electrically connecting the two electronic components. Such an interposer includes a housing having a plurality of through holes and a plurality of contacts inserted and held in each through hole.

[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 two main surfaces of the housing, respectively. The plurality of contacts may include, in the width direction thereof, a signal contact pair composed of two signal contacts arranged adjacent to each other and responsible for signal transmission.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In an interposer, further improvement in its electrical characteristics is desired.

[0006] In view of such circumstances, an object of the present disclosure is to provide an interposer capable of further improving electrical characteristics.

Means for Solving the Problems

[0007] To achieve the above object, in the present disclosure, A housing body 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 signal contact pair having two signal contacts, each having a base press-fitted into the through hole, a first signal contact beam extending from the base toward the first surface and having a first contact portion contacting the first electrical component at the tip, and a second signal contact beam extending from the base toward the second surface and having a second contact portion contacting the second electrical component at the tip, the two signal contacts being adjacent to each other at a predetermined interval along the width direction of the signal contact Comprising An interposer is provided, wherein a part of the first contact beam of one signal contact is located outside the through hole from the first surface and has the first protruding portion protruding toward the other signal contact, and / or a part of the second contact beam of the other signal contact is located outside the through hole from the second surface and has a second protruding portion protruding toward the one signal contact.

Advantages of the Invention

[0008] According to the interposer of the present disclosure, further improvement of electrical characteristics can be achieved.

Brief Description of the Drawings

[0009]

Figure 1A

Figure 1B

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

[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. Thereafter, 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 partially 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 partially 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 and A in FIG. 2. FIG. 4 is a perspective view schematically showing an example of contacts including signal contacts having characteristic configurations 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 includes a housing body 11 having two main surfaces (a first surface 11X and a second surface 11Y) corresponding to each other, 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 a surface facing the first electronic component 210 among the two electronic components 200. The second surface 11Y may be a 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 mentioned. Also, as the above-mentioned second electronic component 220, a circuit board can be mentioned. In this case, the interposer 100 of the present disclosure functions as a mediator for signal transmission between the circuit board and the IC.

[0017] In FIG. 1A, as an example, an aspect is shown in which a plurality of through holes 12 are provided in a lattice pattern in a local portion of the housing 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 body 。The material constituting the housing 10 may be any material having insulating properties, and for example, a thermoplastic resin material can 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. The material constituting the contact 20 may be any metal material having electrical conductivity, and for example, copper can be selected.

[0019] The above signal contacts may have the same shape as each other, but include 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 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] As will be described later, 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] In addition, 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 contact among the plurality of through holes 12 of the housing 10 described above. 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 described above.

[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 above through holes 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 end. Further, 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 end.

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

[0027] Also, when the 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 for transmitting signals are provided at positions corresponding to each of the signal contacts. When the interposer 100 of the present disclosure is mounted on the circuit board, the second contact portions of the respective signal contacts are in electrical contact 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 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 21A beyond the first surface 11X of the housing 10 (also refer to FIG. 1A), and has the above-mentioned first contact portion 24A at the tip 28A. The second signal contact beam 23A extends outward from the base 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 29A.

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

[0032] The second signal contact 20B has two openings 27B formed by the base 21B and the signal contact beams 22B, 23B. This opening 27B is a space region surrounded by the base 21B and each signal contact beam continuous therewith.

[0033] The first signal contact beam 22B extends outward from the base 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 the tip 28B. The second signal contact beam 23B extends outward from the base 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 the tip 29B.

[0034] In each of the signal contacts 20A, 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 above-mentioned 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 above-mentioned 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, the contact 20, particularly the signal contact.

[0037] Specifically, in the present disclosure, in the first signal contact 20A and the second signal contact 20B adjacent to each other, a part of the first contact beam of one of the signal contacts is located outside the through hole than the first surface 11X of the housing 10, and has a first protruding portion protruding toward the other signal contact adjacent in the width direction of the contact.

[0038] In addition to or instead of this, in the present disclosure, a part of the second contact beam of the other signal contact of the first signal contact 20A and the second signal contact 20B adjacent to each other is located outside the through hole 12 than the second surface 11Y of the housing 10, and has a second protruding portion protruding toward one of the signal contacts in the width direction of the contact.

[0039] In the example shown in FIGS. 2 to 4, the first contact beam 22A of the first signal contact 20A may be located outside the first surface 11X of the housing 10, and has a first protruding portion 26A protruding toward the second signal contact 20B adjacent in the width direction of the contact. Further, the second contact beam 23B of the second signal contact 20B may be located outside the second surface 11Y of the housing 10, and has a second protruding portion 26B protruding toward the first signal contact 20A adjacent in the width direction of the contact.

[0040] In the examples shown in FIGS. 2 to 4, the above-described protruding portions 26A and 26B may be arranged not only to protrude toward adjacent signal contacts but also to protrude toward adjacent ground contacts 20C. Without being limited thereto, as shown in FIGS. 5 to 7, the above-described protruding portions 26A and 26B may be arranged to protrude toward adjacent signal contacts, while they may be arranged not to protrude toward adjacent ground contacts 20C.

[0041] At least one of the first protruding portion 26A and the second protruding portion 26B can adjust a desired interval between adjacent signal contacts, specifically, between the first signal contact beams and / or between the second signal contact beams. Thereby, further improvement in the electrical characteristics of the interposer 100 of the present disclosure can be achieved.

[0042] Furthermore, since further improvement in the electrical characteristics of the interposer 100 can be achieved by the above-described protruding portions 26A and 26B, compared with the case where such protruding portions are not provided on the signal contacts, it is also possible to reduce the number of signal contacts arranged in the width direction of the contacts in a housing of a predetermined size, that is, the number of contacts used. That is, even if the number of signal contacts is reduced compared with the case where such protruding portions are not provided on the signal contacts, the electrical characteristics of the interposer 100 can be suitably ensured.

[0043] In one example, due to the presence of the first protruding portion 26A and the second protruding portion 26B, the minimum interval between the first contact beams of adjacent signal contacts and the minimum interval between the second contact beams of adjacent signal contacts can be made smaller than the minimum interval between the bases of adjacent signal contacts. As another example, the central axis lines between the first contact beams and the second contact beams of adjacent signal contacts can be displaced from the central axis line between the bases of adjacent signal contacts. By being able to make the above adjustments, further improvement in the electrical characteristics of the interposer 100 of the present disclosure can be achieved.

[0044] As shown in FIGS. 2 and 3, in the present disclosure, the wall portion 11a of the housing main body 11 can be located between two adjacent signal contacts. Such a wall portion 11a can arrange the two signal contacts separately from each other, and the wall portion 11a itself also contributes to the improvement of the electrical characteristics of the interposer 100.

[0045] Further, when the above wall portion 11a is provided between two signal contacts, the bases of the adjacent signal contacts are press-fitted and contacted with the inner wall surface of the wall portion 11a respectively. In contrast, at least one of the first protruding portion 26A and the second protruding portion 26B can adopt a configuration that extends from the through hole 12 side of the housing 10 to the upper side of the wall portion 11a. In other words, the above wall portion 11a between two signal contacts can be located below at least one of the first protruding portion 26A and the second protruding portion 26B.

[0046] That is, the wall portion 11a between two signal contacts and at least one of the first protruding portion 26A and the second protruding portion 26A can be arranged so as to overlap each other. Thereby, a desired interval between the first signal contact beams and / or between the second signal contact beams can be adjusted, and as a result, further improvement of the electrical characteristics of the interposer 100 can be achieved.

[0047] Furthermore, as described above, when the ground contact 20C has the same shape as the first signal contact 20A and the second signal contact 20B shown in FIGS. 2 to 4, from the viewpoint of further improving the electrical characteristics of the interposer 100, it is preferable that the ground contact 20C can also have a protruding portion protruding toward the adjacent signal contact.

[0048] In the present disclosure, at least the wall portion 11a between the two signal contacts may be configured to be recessed more than other portions of the housing main body 11 other than the wall portion 11a. In other words, at least one of the first surface 11X and the second surface 11Y (see FIG. 1A) of the housing main body 11 at the wall portion 11a between the two signal contacts may have a recessed region (see FIG. 2).

[0049] According to such a configuration, compared with the case where the first surface 11X and the second surface 11Y of the housing main body 11 are substantially flat as a whole, it is possible to suitably accommodate the protruding portions 26A and 26B in the recessed region 11b. Thereby, it is possible to reduce the size of the interposer 100 of the present disclosure.

[0050] Hereinafter, the ground contact will be described. In one example, as shown in FIGS. 2 to 4, the ground contact 20C may have the same shape as the first signal contact 20A and the second signal contact 20B.

[0051] 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.

[0052] In still another example, as shown in FIG. 6, two or more ground contacts may be arranged between the signal contact pairs 20P in consideration of improving the electrical characteristics of the interposer 100 of the present disclosure.

[0053] As another example of FIG. 6, as shown in FIGS. 7 and 8, when, for example, two ground contacts are arranged between the signal contact pairs 20P, in consideration of improving the electrical characteristics of the interposer 100 of the present disclosure, the interval between the two ground contacts in the width direction of the contacts may be made larger.

[0054] 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.

[0055] The interposer of the present disclosure may adopt the following aspects. <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 from the base toward 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 from the base toward 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 at a predetermined interval along the width direction of the signal contact. Comprising A part of the first contact beam of one signal contact is located outside the through hole from the first surface and has the first protruding portion protruding toward the other signal contact, and / or a part of the second contact beam of the other signal contact is located outside the through hole from the second surface and has a second protruding portion protruding toward the one signal contact, an interposer. <2> The interposer according to <1>, wherein a wall portion of the housing main body is located between the two adjacent signal contacts. <3> The interposer according to <2>, wherein at least one of the first protruding portion and the second protruding portion extends from the through hole side of the housing to the upper side of the wall portion. <4> The interposer according to <2> or <3>, wherein the wall portion is located below at least one of the first protruding portion and the second protruding portion. <5> The interposer according to any one of <2> to <4>, wherein at least the wall portion is recessed more than other portions of the housing body portion other than the wall portion. <6> The interposer according to any one of <2> to <5>, wherein at least one of the first surface and the second surface of the housing body portion has a recessed region in a wall portion of the housing body portion between the two signal contacts. <7> The interposer according to <6>, wherein at least one of the first protruding portion and the second protruding portion is accommodated in the recessed region. <8> The interposer according to any one of <2> to <7>, wherein the wall portion between the two signal contacts and at least one of the first protruding portion and the second protruding portion are arranged so as to overlap each other. <9> The interposer according to any one of <1> to <8>, further comprising ground contacts arranged on both sides of the signal contact pair. <10> The interposer according to <9>, wherein the ground contact has the same shape as the signal contact. <11> The interposer according to <9> or <10>, wherein the signal contact further has a protruding portion protruding toward an adjacent ground contact. <12> The interposer according to <10> or <11>, wherein the ground contact further has a protruding portion protruding toward an adjacent signal contact.

Industrial Applicability

[0056] The interposer of the present disclosure is used for electrically connecting two electronic components.

Description of Symbols

[0057] 200 Electronic components 210 First electronic component 220 Second electronic component 100 Interposer 10 Housing 11 Housing main body part 11X First surface of the housing main body part 11Y Second surface of the housing main body part 11a Wall part of the housing main body part between two signal contacts 11b Recessed area of the housing main body part between two signal contacts 12 Through hole 20 Contact 20A, 20AI First signal contact 21A Base 22A First signal contact beam 23A Second signal contact beam 24A First contact part of the first signal contact beam 25A Second contact part of the second signal contact beam 26A First protruding part of the first signal contact 27A Opening of the first signal contact beam 28A Tip of the first signal contact beam 29A Tip of the second signal contact beam 20B, 20BI Second signal contact 21B Base 22B First signal contact beam 23B Second signal contact beam 24B First contact part of the first signal contact beam 25B Second contact part of the second signal contact beam 26B First protruding part of the first signal contact of the first signal contact 27B Opening of the first signal contact beam Tip of the first signal contact beam 28B Tip of the second signal contact beam 29B Ground contacts 20C, 20CI, 20CII Signal contact pairs 20P, 20PI

Claims

1. A housing 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 from the base toward the first surface and having a first contact portion contacting the first electrical component at a tip portion, and a second signal contact beam extending from the base toward the second surface and having a second contact portion contacting the second electrical component at a tip portion, 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 a first protruding portion in which a part of the first contact beam of one signal contact is located outside the through hole than the first surface and protrudes toward the other signal contact, and / or a second protruding portion in which a part of the second contact beam of the other signal contact is located outside the through hole than the second surface and protrudes toward the one signal contact, an interposer.

2. The interposer according to claim 1, wherein a wall portion of the housing body is located between the two adjacent signal contacts.

3. The interposer according to claim 2, wherein at least one of the first protruding portion and the second protruding portion extends from the through hole side of the housing to above the wall portion.

4. The interposer according to claim 2, wherein the wall portion is located below at least one of the first protruding portion and the second protruding portion.

5. The interposer according to claim 2, wherein at least the wall portion is recessed more than other portions of the housing body other than the wall portion.

6. The interposer according to claim 2, wherein at least one of the first surface and the second surface of the housing body has a recessed region in a wall portion of the housing body between the two signal contacts.

7. The interposer according to claim 6, wherein at least one of the first protruding portion and the second protruding portion is accommodated in the recessed region.

8. The interposer according to claim 2, wherein at least one of the wall portion, the first protruding portion, and the second protruding portion between the two signal contacts is arranged so as to overlap with each other.

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

10. The interposer according to claim 9, wherein the ground contact has the same shape as the signal contact.

11. The interposer according to claim 9, wherein the signal contact further has the protruding portion protruding toward the adjacent ground contact.

12. The interposer according to claim 10, wherein the ground contact further has a protruding portion protruding toward the adjacent signal contact.

Images