Patent ID: 7364926

Claim:
A method for manufacturing GaN LED devices, comprising the steps of: (a) providing a provisional substrate; (b) forming a LED epitaxial layer on said provisional substrate; (c) removing part of said LED epitaxial layer to form a plurality of LED epitaxial areas; (d) forming sequentially a first transparent conductive layer, a metal reflective layer, and a first metal bonding layer on said plurality of LED epitaxial areas; (e) removing part of said first transparent conductive layer, said metal reflective layer, and said first metal bonding layer to form a first metal pattern area on each of said LED epitaxial areas; (f) providing a permanent substrate; (g) forming at least a metal layer and a second metal bonding layer on said permanent substrate; (h) removing part of at least said metal layer and said second metal bonding layer to form a plurality of second metal pattern areas; (i) bonding said first metal bonding layer of said provisional substrate and said second metal bonding layer of said permanent substrate; (j) removing said provisional substrate to expose a surface of said LED epitaxial layer; (k) forming an n-type electrode on said surface; and (l) cutting said permanent substrate to form a plurality of LED devices.