| abstract |
Provided is a flexible metal clad laminate, in which a metal layer is formed on one surface or both surfaces of an insulating layer constituted by a plurality of polyimide-based resin layers, and the polyimide-based resin layers that are in contact with the metal layer have Storage Modulus of 1 X 10 8 Pa or more at 300℃ and 1 X 10 8 Pa or less at 350℃, and has characteristics in that curling of a product does not occur, adhesive strength with a metal clad is favorable, a dimensional change after heat treatment is small, and particularly solder resistance after moisture absorption is excellent. |