Patent ID: 9661749
Date: 2017-05-23
CPC Classifications: B32B,H05K,Y10T

Claim:
1. A metal-clad laminate comprising: an insulating layer, and a metal layer present on at least one surface side of the insulating layer, wherein the insulating layer is a laminate of at least three layers of a center layer, a first resin layer present on one surface side of the center layer, and a second resin layer present on the other surface side of the center layer, the center layer contains a cured product of a resin composition, and a sheet-shaped fiber base material, the first resin layer and the second resin layer include no sheet-shaped fiber base material, the first resin layer and the second resin layer are formed of cured products of resin compositions, respectively, the resin composition in the center layer contains a thermosetting resin and an inorganic filler, a resin contained in the resin composition in the center layer is different from resins contained in the resin compositions in the first resin layer and the second resin layer, and a coefficient of thermal expansion of the cured product of the resin composition contained in the first resin layer and a coefficient of thermal expansion of the cured product of the resin composition contained in the second resin layer are between 10% and 44.7%, respectively, of a coefficient of thermal expansion of the cured product of the resin composition contained in the center layer.