METAL-PLATED LAMINATED BOARD, AND PRINTED WIRING BOARD

摘要

A metal-clad laminate according to the present embodiment includes an insulating layer, and a metal layer present on at least one surface side of the insulating layer. 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, the first resin layer and the second resin layer each contain a cured product of a resin composition. Coefficients of thermal expansion of the cured products of the resin compositions contained in the first resin layer and the second resin layer are smaller than a coefficient of thermal expansion of the cured product of the resin composition contained in the center layer.

主权项

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 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, 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 respectively smaller than a coefficient of thermal expansion of the cured product of the resin composition contained in the center layer.