[특허]Sheet having high thermal conductivity and flexibility

[미국특허] Sheet having high thermal conductivity and flexibility 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F28F-001/36 F28F-007/00 H05K-007/20 H01L-023/373 H01L-023/433 B32B-009/00 B32B-009/04
출원번호	US-0303804 (2007-06-06)
등록번호	US-9179579 (2015-11-03)
우선권정보	JP-2006-160343 (2006-06-08)
국제출원번호	PCT/JP2007/061481 (2007-06-06)
§371/§102 date	20100820 (20100820)
국제공개번호	WO2007/142273 (2007-12-13)
발명자 / 주소	Hada, Sayuri Sueoka, Kuniaki Taira, Yoichi
출원인 / 주소	International Business Machines Corporation
대리인 / 주소	Kwon, Janice
인용정보	피인용 횟수 : 10 인용 특허 : 93

초록 ▼

Problem To reduce thermal resistance between a heating body and a radiating body. Solving Means Provided is a sheet having a high thermal conductivity and flexibility, in which graphite layers and elastic layers are stacked alternately, and each of ends of the graphite layer in its surface direction or each of ends of a graphene protrudes from an end of the elastic layer and bends so as to cover at least a part of the end of the elastic layer. By placing a sheet of the present invention in a space (gap) between a heating body and a radiating body, thermal resistance at the gap, especially contact thermal resistance on a joint surface, can be reduced even in the case where flatness of a surface of the heating body or a surface of the radiating body is small.

대표청구항 ▼

1. A thermal conduction module, comprising: a heating body having an outer surface disposed in a first orientation; a radiating body having an outer surface disposed in the first orientation; and a sheet arranged between the outer surface of the heating body and the outer surface of the radiating body, wherein the sheet having a plurality of graphite layers and a plurality of elastic layers arranged alternately, wherein the graphite layers and elastic layers are oriented in a second orientation perpendicular to the first orientation and each graphite layer comprises first and second ends in the first orientation and a central layer portion in the second orientation and wherein individual layers of graphene within the central layer portion of the graphite layer are oriented in the second orientation, each of the ends of each graphite layer extending beyond one of a top and a bottom end of an adjacent elastic layer and being disposed in the first orientation so as to cover at least a part of a top or a bottom end of an adjacent elastic layer, and wherein one end surface of the graphite layer in the first orientation is in contact with the outer surface of the radiating body and another end surface in the first orientation is in contact with the outer surface of the heating body, wherein spaces occur between at least one of the outer surface of the heating body and the sheet and the outer surface of the radiating body and the sheet and further comprising a filling material in at least one of spaces between the outer surface of the heating body and the sheet, and between the outer surface of the radiating body and the sheet. 2. The thermal conduction module according to claim 1, wherein the filling material is made of one material selected from the group consisting of a silicone oil, a liquid metal, and a radiating grease. 3. The thermal conduction module according to claim 1, wherein each of the ends of the graphite layer in the first orientation covers ends of two neighboring elastic layers. 4. The thermal conduction module according to claim 1, wherein the elastic layer comprises a resin material having adhesiveness to the graphite layer. 5. The thermal conduction module according to claim 1, wherein the heating body includes an IC chip, andthe radiating body includes a heat sink. 6. A thermal interface sheet for placement arranged between an outer surface of a heating body, and an outer surface of a radiating body, each outer surface being oriented in a first orientation, the sheet comprising: a plurality of graphite layers each having first and second ends and a central portion; and a plurality of elastic layers arranged alternately between graphite layers, wherein the elastic layers and the central portions of the graphite layers are oriented in a second orientation perpendicular to the first orientation and each graphite layer comprises first and second ends in the first orientation and a central layer portion in the second orientation and wherein individual layers of graphene within the central layer portion of the graphite layer are oriented in the second orientation, and wherein each of the ends of each graphite layer extends beyond one of a top and a bottom end of the an adjacent elastic layer and is disposed in the first orientation so as to cover at least a part of a top or a bottom end of an adjacent elastic layer, wherein spaces occur between at least one of the outer surface of the heating body and the sheet and the outer surface of the radiating body and the sheet and further comprising a filling material in at least one of spaces between the outer surface of the heating body and the sheet, and between the outer surface of the radiating body and the sheet. 7. The thermal interface sheet according to claim 6, wherein each of the ends of the graphite layer in the first orientation covers ends of two neighboring elastic layers. 8. The thermal interface sheet according to claim 6, wherein the elastic layer is made of a resin material having adhesiveness to the graphite layer.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Sheet having high thermal conductivity and flexibility 원문보기

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[미국특허] Sheet having high thermal conductivity and flexibility 원문보기

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