Etching a substrate: processes – Etching and coating occur in the same processing chamber
Patent
1992-01-15
1995-08-22
Breneman, R. Bruce
Etching a substrate: processes
Etching and coating occur in the same processing chamber
118715, 118724, 118733, 118723MB, 156345, 216 67, 216 79, H01L 2100
Patent
active
054436869
ABSTRACT:
Processes for producing and using a novel CVD apparatus for depositing silicon layers onto suitable substrates and for the in-situ etching removal of background silicon deposits from the interior walls of the apparatus. The invention comprises using an apparatus having a fused quartz reaction chamber and precoating the interior wall of the reaction chamber with a thin continuous barrier layer of Al.sub.2 O.sub.3 which is inert to the etching gas introduced for the removal of the background silicon deposits.
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Jones Fletcher
Muroski, Jr. Kenneth J.
Robinson Bennett
Breneman R. Bruce
Goudreau G.
International Business Machines Corporation Inc.
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