Patent ID: 8132318
Filing Date: 2012-03-13
Classification: H01L,Y10T

Abstract:
1. A method of forming a semiconductor device on a metal substrate comprising: providing a master having a master surface with a roughness of less than 400 nm, peak-to-peak; depositing a first seed layer of a first metal on the master surface of the master to form a substantially planar surface of the first seed layer proximate the master surface; bonding a supporting metal layer to the first seed layer on a surface opposite the substantially planar surface, the seed layer and the metal layer comprising the metal substrate; removing the metal substrate from the master to expose the substantially planar surface; laminating the metal substrate to a carrier with the supporting metal layer against the carrier; forming at least one semiconductor device on the exposed substantially planar surface, opposite the supporting metal layer; and removing the metal substrate having at least one semiconductor device from the carrier.