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Method and Apparatus for Super-High Rate Deposition

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Lawrence Berkeley National Laboratory - Visit the Technology Transfer and Intellectual Property Management Department Website
A method and apparatus for achieving very high deposition rate magnetron sputtering wherein the surface of a target and especially the race track zone area of the target, in one embodiment may be heated to such a degree that the target material approaches the melting point and sublimation sets in. Controlled heating is achieved primarily through the monitoring of the temperature of the target material and with the aid of a processor subsequently controlling the target temperature by adjustment of the power being inputted to the target. This controlled heating to the sublimation point is particularly effecting in high deposition rate metal coating of parts when used in conjunction with HIPIMS deposition. The apparatus for controlling temperature of the target in one embodiment includes a thermocouple, which is electronically connected to a controller or microcomputer which is programmed to control the power of the pulse to the target, and the duty cycle of the power pulses as the primary means for regulating the temperature of the system.
Anders, Andre (El Cerrito, CA)
The Regents of the University of California (Oakland CA)
13/ 264,692
April 13, 2010
STATEMENT OF GOVERNMENTAL SUPPORT [0002] The invention described and claimed herein was made in part utilizing funds supplied by the U.S. Department of Energy under Contract No. DE-ACO2-05CH11231. The government has certain rights in this invention.