KR0164065B1 - Anisotropic conductive rubber - Google Patents
Anisotropic conductive rubber Download PDFInfo
- Publication number
- KR0164065B1 KR0164065B1 KR1019940031561A KR19940031561A KR0164065B1 KR 0164065 B1 KR0164065 B1 KR 0164065B1 KR 1019940031561 A KR1019940031561 A KR 1019940031561A KR 19940031561 A KR19940031561 A KR 19940031561A KR 0164065 B1 KR0164065 B1 KR 0164065B1
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- South Korea
- Prior art keywords
- anisotropic conductive
- conductive rubber
- shrinkage rate
- zebra
- rubber layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/16—Non-insulated conductors or conductive bodies characterised by their form comprising conductive material in insulating or poorly conductive material, e.g. conductive rubber
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Liquid Crystal (AREA)
- Non-Insulated Conductors (AREA)
Abstract
본 발명은 이방성 도전 고무, 특히 도전박막이 일정간격을 배열되어 있는 이방성 도전 고무층의 양측에 절연 고무층이 접합되어 있는 제브라형 이방성 도전 고무에 관한 것으로서, 이방성 도전 고무에서 기구적인 접착 방법이나 화학 또는 열처리 등의 방법으로 접촉패드와 접촉되는 양측을 수축률이 높게 형성하고, 중앙부분을 수축률이 낮게 형성하였으므로, 이방성 도전 고무의 높이가 높은 경우에도 중앙 부분의 수축률이 낮으므로 모듈 조립시 가하는 압력이 크지 않아도 되고, 압력에 의해 이방성 도전 고무가 휘거나 쓰러지지 않아 모듈 조립공정수율이나 조립후의 신뢰성이 향상된다.The present invention relates to a zebra type anisotropic conductive rubber in which an insulating rubber layer is bonded to both sides of an anisotropic conductive rubber, in particular, an anisotropic conductive rubber layer in which a conductive thin film is arranged at a predetermined interval. Since both sides in contact with the contact pad are formed with a high shrinkage rate and the center portion has a low shrinkage rate, the shrinkage rate of the center portion is low even when the height of the anisotropic conductive rubber is high. As a result, the anisotropic conductive rubber is not bent or collapsed by the pressure, so that the yield of the module assembly process and the reliability after assembly are improved.
Description
제1도는 본 발명에 따른 이방성 도전 고무의 사시도.1 is a perspective view of an anisotropic conductive rubber according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 이방성 도전 고무층 2 : 도전 박막1: anisotropic conductive rubber layer 2: conductive thin film
3 : 절연 고무 A,C : 수축률이 큰 양측 부분3: insulating rubber A, C: both sides with large shrinkage
B : 수축률이 작은 중앙부분B: center part with small shrinkage rate
본 발명은 상하 방향으로만 전기적으로 도통되는 이방성 도전 고무에 관한 것으로서, 특히 도전박막이 일정간격으로 배열되어 있는 이방성 도전 고무층의 양면에 절연 고무층이 접착되어 있는 제브라형 이방성 도전 고무에서 접촉단자들과 접촉되는 양측 부분에 비해 중간 부분이 낮은 수축률을 갖도록 형성하여 조립 공정시 압축 압력에 의한 변형 및 쓰러짐을 방지하고, 전기접촉의 신뢰도를 증가시켜 조립공정의 수율 및 조립된 모듈의 신뢰성을 향상시킬 수 있는 이방성 도전 고무에 관한 것이다.The present invention relates to an anisotropic conductive rubber that is electrically conductive only in the vertical direction. In particular, the present invention relates to contact terminals in a zebra type anisotropic conductive rubber in which an insulating rubber layer is adhered to both surfaces of an anisotropic conductive rubber layer in which conductive thin films are arranged at regular intervals. The middle part is formed to have a low shrinkage ratio compared to both parts to be contacted to prevent deformation and collapse by compression pressure during the assembly process, and to increase the reliability of the electrical contact to improve the yield of the assembly process and the reliability of the assembled module. To anisotropic conductive rubber.
일반적으로 한 방향으로만 전기적으로 도통시키는 이방성 도전 고무는 분산형과 제브라형이 있다.In general, there are two types of anisotropic conductive rubbers which are electrically conductive in only one direction.
상기 분산형 이방성 도전 고무는 고무층 내에 도전 물질 분말이 골고루 분포되어 있는 형태로서, 보통의 상태에서는 절연체이나 상하로 대응되는 부분에 압력을 가하면, 압력이 가해지는 부분의 도전물질 분말이 압착되어 상하 방향으로 전기를 도통시키고, 다른 부분에서는 절연 상태가 된다.The dispersed anisotropic conductive rubber is a form in which the conductive material powder is evenly distributed in the rubber layer, and in a normal state, when a pressure is applied to an insulator or a corresponding portion up and down, the conductive material powder in a portion to which the pressure is applied is compressed to be vertically oriented. Electricity is conducted, and the other part is insulated.
제1도에 도시되어 있는 제브라형 이방성 도전 고무는 이방성 도전 고무층(1)의 양측에 절연 고무층(2)이 접착되어 있는 형태로서, 상기 이방성 도전 고무층(1)은 절연고무의 사이에 일정간격으로 도전물질박막(3)이 분포되어 있어 상하 방향으로 접촉되는 패드들을 연결한다.The zebra type anisotropic conductive rubber shown in FIG. The conductive material thin film 3 is distributed to connect the pads contacted in the vertical direction.
또한 상기 제브라형 이방성 도전 고무는 어느 정도, 예를 들어 10~20%정도의 수축률을 갖고 있으며, 각각의 도전 패턴을 하나하나 연결하기 어려운 제품, 예를 들어 액정표시장치(liquid crystal display; 이하 LCD라 칭함) 모듈의 LCD 판넬과 인쇄회로기판(printed circuit board; 이하 PCB라 칭함)의 연결에 사용되며, LCD 모듈의 간격 조정의 역할도 병행한다.In addition, the zebra-type anisotropic conductive rubber has a shrinkage of about 10% to 20%, and it is difficult to connect each conductive pattern one by one, for example, a liquid crystal display (LCD) It is used to connect the LCD panel of the module and the printed circuit board (hereinafter referred to as PCB), and also plays a role of adjusting the gap of the LCD module.
상기 LCD 모듈에 사용되는 제브라형 이방성 도전 고무는 모듈에서 LCD 판넬과 PCB의 간격이 넓어, 제브라의 높이가 높을 경우 제브라에 가해지는 압력이 높아야 하므로 조립 공정의 수율이 떨어지게 되고, 휘거나 쓰러지며, 전기접촉이 떨어져 공정수율 및 소자동작의 신뢰성이 떨어지는 문제점이 있다.The zebra-type anisotropic conductive rubber used in the LCD module has a wide gap between the LCD panel and the PCB in the module, and when the height of the zebra is high, the pressure applied to the zebra must be high, so that the yield of the assembling process decreases, and the bending or collapse occurs. There is a problem in that the electrical contact is poor and the process yield and device operation reliability is inferior.
본 발명은 상기와 같은 문제점을 해결하기 위한 것으로서, 본 발명의 목적은 이방성 도전 고무층의 양측에 부도체 고무층이 접착되어 있는 제브라형 이방성 도전 고무의 수축률을 양측과 중앙 부분이 서로 다르게 하여 높이가 높은 제브라의 경우에도 낮은 압력으로 압착할 수 있고, 조립시의 휘어짐이나 쓰러짐을 방지하여 공정수율 및 소자동작의 신뢰성을 향상시킬 수 있는 이방성 도전 고무를 제공함에 있다.The present invention is to solve the above problems, an object of the present invention is to increase the zebra-type anisotropic conductive rubber to which the non-conductive rubber layer is bonded to both sides of the anisotropic conductive rubber layer, both sides and the center portion different from each other and high zebra The present invention also provides an anisotropic conductive rubber which can be pressed at low pressure and prevents warping or falling down during assembly to improve process yield and reliability of device operation.
상기와 같은 목적을 달성하기 위한 본 발명에 따른 이방성 도전 고무의 특징은, 일정간격으로 도전박막이 배열되어 있는 이방성 도전 고무층의 양측면에 절연 고무가 부착되어 있는 제브라형 이방성 도전 고무에 있어서, 상기 이방성 도전 고무의 중앙 부분이 상하 양측 부분에 비하여 수축률이 떨어짐에 있다.A feature of the anisotropic conductive rubber according to the present invention for achieving the above object is, in the zebra-type anisotropic conductive rubber is attached to both sides of the anisotropic conductive rubber layer in which the conductive thin film is arranged at a predetermined interval, the anisotropic The center portion of the conductive rubber is inferior in shrinkage as compared with the upper and lower portions.
이하, 본 발명에 따른 이방성 도전 고무에 관하여 첨부 도면을 참조하여 상세히 설명한다.Hereinafter, the anisotropic conductive rubber according to the present invention will be described in detail with reference to the accompanying drawings.
제2도는 본 발명에 따른 이방성 도전 고무의 사시도로서, 제브라형의 예이다.2 is a perspective view of the anisotropic conductive rubber according to the present invention, an example of zebra type.
일정간격으로 도전박막(3)들이 배열되어 있는 이방성 도전 고무층(1)의 양측에 절연 고무층(2)이 부착되어 있으며, 상기 제브라형 이방성 도전 고무의 상하 양측 부분(A,C)은 높은 수축률, 예를 들어 10~20%의 수축률을 갖고 있으며, 전체 높이의 30~60% 정도를 차지하는 중앙 부분(B)은 낮은 수축률, 예를 들어 5% 정도의 수축률을 갖도록 형성되어 있다.The insulating rubber layer 2 is attached to both sides of the anisotropic conductive rubber layer 1 in which the conductive thin films 3 are arranged at regular intervals, and upper and lower portions A and C of the zebra type anisotropic conductive rubber have high shrinkage ratio, For example, the central portion B, which has a shrinkage of 10 to 20% and occupies about 30 to 60% of the total height, is formed to have a low shrinkage, for example, a shrinkage of about 5%.
상기와 같은 수축율차는 고무층(1),(2)를 차체를 제작시 광학적, 화학적 또는 열처리 등의 방법으로 형성하거나, 수축률이 다른 고무들을 접합시키는 기구적 방법으로 형성할 수도 있다.The shrinkage difference as described above may be formed by a method such as optical, chemical or heat treatment when manufacturing the vehicle body, or by a mechanical method of bonding rubbers having different shrinkage rates.
상기와 같이 부위에 따라 수축률이 다른 제브라형 이방성 도전 고무는 중앙부분의 수축률이 상하 양측에 비해 낮으므로, 제브라의 높이가 높아도 압착에 의해 휘거나 쓰러지지 않는다.As described above, the zebra-type anisotropic conductive rubber having a different shrinkage rate according to the part has a lower shrinkage rate at the center portion than the upper and lower sides, so that the zebra type anisotropic conductive rubber is not bent or collapsed by pressing even when the zebra height is high.
이상에서 설명한 바와 같이, 본 발명에 따른 이방성 도전 고무는 도전박막이 일정간격을 배열되어 있는 이방성 도전 고무층의 양측에 절연 고무층이 접합되어 있는 제브라형 이방성 도전 고무에서 접촉패드와 접촉되는 상하 양측 부분의 수축률이 높게 형성하고, 중앙부분은 수축률이 낮게 형성하였으므로, 이방성 도전 고무의 높이가 높은 경우에도 중앙 부분의 수축률이 낮아 모듈 조립시 가해지는 압축 압력이 크지 않아도 전기 접촉이 안정적으로 되고, 압력에 의해 이방성 도전 고무가 휘거나 쓰러지지 않아 모듈 조립 공정수율이나 조립후의 신뢰성이 향상되는 이점이 있다.As described above, the anisotropic conductive rubber according to the present invention is a zebra-type anisotropic conductive rubber in which an insulating rubber layer is bonded to both sides of the anisotropic conductive rubber layer in which the conductive thin film is arranged at a predetermined interval, and is contacted with the contact pads. Since the shrinkage rate is formed high and the center part is formed with a low shrinkage rate, even if the height of the anisotropic conductive rubber is high, the shrinkage rate of the center part is low, so that electrical contact is stable even if the compression pressure applied during module assembly is not large. Since the anisotropic conductive rubber is not bent or collapsed, there is an advantage in that the yield of the module assembly process and the reliability after assembly are improved.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940031561A KR0164065B1 (en) | 1994-11-28 | 1994-11-28 | Anisotropic conductive rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940031561A KR0164065B1 (en) | 1994-11-28 | 1994-11-28 | Anisotropic conductive rubber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR960019329A KR960019329A (en) | 1996-06-17 |
| KR0164065B1 true KR0164065B1 (en) | 1998-12-15 |
Family
ID=19399304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019940031561A Expired - Fee Related KR0164065B1 (en) | 1994-11-28 | 1994-11-28 | Anisotropic conductive rubber |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0164065B1 (en) |
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1994
- 1994-11-28 KR KR1019940031561A patent/KR0164065B1/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| KR960019329A (en) | 1996-06-17 |
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