Patent ID: 6291081
Filing Date: 2001-09-18
Classification: C25D,H05K,Y10T

Abstract:
A process for producing an electrodeposited copper foil with its surface prepared, comprising the steps of:subjecting an electrodeposited copper foil having a shiny side and a matte side whose average surface roughness (Rz) is in the range of 2.5 to 10 .mu.m to a first mechanical polishing so that the average surface roughness (Rz) of the matte side becomes in the range of 1.5 to 6 .mu.m, andsubjecting the matte side having undergone the first mechanical polishing to at least one further mechanical polishing so that the average surface roughness (Rz) of the matte side becomes in the range of 1.0 to 3.0 .mu.m,wherein the matte side having undergone at least the second mechanical polishing in a counter direction of the first polishing direction has its surface substantially without shelf shaped deformation.