Patent ID: 6660406
Filing Date: 2003-12-09
Classification: H05K,Y10T

Abstract:
A composite copper foil with a carrier for manufacturing a printed wiring board with resistor circuits, comprising a metal layer for forming the resistor circuit between a copper carrier and a copper foil layer for forming the circuit, wherein said metal layer for forming the resistor circuit consists essentially of a nickel alloy layer which consists essentially of nickel and at least one component selected from the group consisting of phosphorus, boron, sulfur, titanium, vanadium, chromium, manganese, iron, cobalt, zinc, molybdenum, tungsten, tin and antimony, wherein the thickness of said nickel alloy layer is 0.01 &mgr;m to 4 &mgr;m, and wherein said composite copper foil further comprises copper microparticles which have been deposited on a surface of the copper foil layer.