PROCESS COMPONENT AND METHOD TO IMPROVE MOCVD REACTION PROCESS
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United States of America Patent
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Aug 18, 2016
app pub date -
Feb 12, 2016
filing date -
Feb 12, 2016
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Abstract
The invention is related to a process component and the method to improve the MOCVD reaction. The principle of the improvement is to cover a compact protection film on the stainless steel body in the MOCVD reaction chamber. Said film is composed of the elements of the gas required during the MOCVD deposition process, or the elements that will not react with the reaction gases of MOCVD. Said film is a compound composed of at least one of the Al, Ga and Mg and at least one of the oxygen or nitrogen, or the other materials with stable chemical characteristics that will not react with the gases in the MOCVD process. Said film will not react with the gases in the MOCVD process or add contaminants to the MOCVD reaction chamber. Therefore, it could reduce the initialization time of the MOCVD process, and improve the efficiency of the MOCVD equipment. The protection film has the compact organization with the porosity less than 1%, and the thickness of the protection film is 1 nm to 0.5 mm.
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