Patent ID: 9688896
Date: 2017-06-27
CPC Classifications: C09K,H01L,H05K

Claim:
1. A thermally conductive sheet composed of a cured product of a thermally conductive resin composition, said thermally conductive resin composition, comprising: A1) a fluorine-based compound having a perfluoroalkyl ether structure in a main chain and one to two hydrosilyl group(s) at molecule terminal end of the main chain, in which a content of molecules having two hydrosilyl groups is 60 to 100 mole %; (B1) a fluorine-based compound having a perfluoroalkyl ether structure in a main chain and one to two alkenyl group(s) at molecule terminal of the main chain, in which a content of molecules having two alkenyl groups is 60 to 100 mole %; (A2) a fluorine-based compound having a perfluoroalkyl ether structure in a main chain and one to two hydrosilyl group(s) at molecule terminal end of the main chain, in which a content of molecules having two hydrosilyl groups is 0 to 40 mole % while a total content of molecules having one to two hydrosilyl group(s) is not 0; (B2) a fluorine-based compound having a perfluoroalkyl ether structure in a main chain and one to two alkenyl group(s) at molecule terminal end of the main chain, in which a content of molecules having two alkenyl groups is 0 to 40 mole % while a total content of molecules having one to two alkenyl group(s) is not 0; and (C) a thermally conductive filler, said thermally conductive resin composition satisfying, in connection with the content of said fluorine-based compounds (A1), (B1), (A2), and (B2), following Equations [1] to [3] wherein the ratio for equation (1) is based on a total weight of A1, B1, A2, and B2; the ratio for equation (2) is based on a total weight of A1 and B1; and the ratio for equation (3) is based on a total weight of A2 and B2; said fluorine-based compounds (A1), (B1), (A2), and (B2) have a perfluoroalkyl ether structure in a main chain, wherein said perfluoroalkyl ether structure is expressed with following Formula [6] (where n is an integer from 1 to 10).