Patent ID: 11901484
Assignee: APPLIED MATERIALS, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of forming an LED structure, the method comprising:
depositing an aluminum nitride layer on a substrate via a physical vapor deposition process;
transferring the substrate to a carrier subsequent to depositing the aluminum nitride layer, wherein a first cover wafer is disposed overlying the substrate on the carrier, a second cover wafer is disposed underlying the substrate on the carrier, and each of the first cover wafer and the second cover wafer comprises a substrate having an aluminum nitride layer;
heating the aluminum nitride layer to a temperature greater than or about 1500° C.; and
forming an ultraviolet light emitting diode (“LED”) structure overlying the aluminum nitride layer utilizing a metal-organic chemical vapor deposition or molecular beam epitaxy.