Patent ID: 8710539
Filing Date: 2014-04-29
Classification: B32B,G02B,H01L,H05K,Y10T

Abstract:
1. A metal foil laminate, comprising: (A) a resin layer comprising a polyorganosiloxane and an inorganic filler; and (B) a metal foil laminated on at least one surface of the resin layer (A), wherein: a 90° peel strength between the resin layer (A) and the metal foil (B) is 0.95 kN/m or greater; an average reflectance for a wavelength of 400 nm to 800 nm at an exposed surface obtained by peeling and removing the metal foil (B) and thereby exposing the resin layer (A), is 80% or higher; and a decrement of reflectances for a wavelength of 470 nm at exposed surfaces, obtained before and after the metal foil laminate is heat treated at 260° C. for 10 minutes, is 5% or less.