Patent ID: 7432119

Claim:
A method for fabricating an n-GaN up light-emitting diode (LED) wafer, comprising: providing a carrier substrate; depositing an n-GaN portion above the carrier substrate; depositing one or more active layers above the n-GaN portion; depositing a p-GaN portion above the active layers; depositing one or more first metal layers above the p-GaN portion; applying a masking layer above the first metal layers; etching portions of the first metal layers, the p-GaN layer, the active layers, and the n-GaN layer according to the masking layer; removing the masking layer; depositing a passivation layer above remaining portions of the first metal layers, the p-GaN layer, the active layers, and the n-GaN layer; removing a portion of the passivation layer to expose the remaining portions of the first metal layers; depositing two or more second metal layers to form a metal substrate; wherein depositing the two or more second metal layers comprises at least one of chemical vapor deposition, electrochemical deposition, electroless chemical deposition, plasma enhanced chemical vapor deposition, physical vapor deposition, atomic layer deposition, metal organic chemical vapor deposition, evaporation, ion beam deposition, sputtering and plasma spray; and removing the carrier substrate to expose the n-GaN portion.