Patent ID: 6807729
Filing Date: 2004-10-26
Classification: B32B,H05K,Y10T

Abstract:
A method of manufacturing a metal foil laminated product comprising the steps of:providing a bottom layer selected from the group consisting of a lower wiring layer, a metal layer and an insulating layer; forming on top of the bottom layer a bonding layer containing a thermosetting resin; provisionally bonding on top of the bonding layer a porous layer provided with a releasing film attached to top of the porous layer; peeling said releasing film from said porous layer; laminating a metal foil on the porous layer obtained after the peeling, wherein the porous layer is sandwiched by the metal foil and the bonding layer; and heating and pressurizing the laminated product to extend said bonding layer toward said metal foil through the porous layer, whereby the thermosetting resin of the bonding layer reaches the metal foil, and thereby integrating the laminated product.