MANUFACTURING METHOD OF MULTILAYER POLYIMIDE FLEXIBLE METAL-CLAD LAMINATE

摘要

Provided is a multilayer polyimide flexible metal-clad laminate where multiple layers of polyimide are structured on one surface or two surfaces of a metal foil, the multilayer polyimide flexible metal-clad laminate including: multiple layers of polyimide having different coefficients of linear thermal expansion; and gradient layers each formed between polyimide layers of the multiple layers of polyimide, the gradient layer having a gradual change in coefficient of linear thermal expansion between the polyimide layers, and a manufacturing method thereof, so that there can be provided a flexible metal-clad laminate for a printed circuit board capable of solving a delamination problem between the polyimide layers and having excellent dimensional stability.