Patent ID: 9219198
Filing Date: 2015-12-22
Classification: H01L

Abstract:
1. A method for forming a metal electrode, comprising: forming a semiconductor layer on a substrate; forming a bonding metal layer on the semiconductor layer; forming a reflective meta layer on the bonding metal layer; and forming the metal electrode by inverting the bonding metal layer and the reflective metal layer through a heat treatment process, wherein the bonding metal layer comprises one selected from the group consisting of Cu, In, Mg, Zn, Sb, Sn, Li, Be, B, Ca, Sr, Ba and alloys including at least one of Cu, In, Mg, Zn, Sb, Sn, Li, Be, B, Ca, Sr, Ba, and wherein the reflective metal layer comprises one selected from the group consisting of Al, Rh, Ru, Ag and alloys including at least one of Al, Rh, Ru and Ag.