Apparatus and method for white powder reduction in silicon nitri

Coating apparatus – Gas or vapor deposition – With treating means

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Details

118723E, 118723ER, 118723I, 118723MP, 118724, 118725, 118715, 1341041, C23C 1600

Patent

active

060559276

ABSTRACT:
An apparatus and method for reducing the production of white powder in a process chamber used for depositing silicon nitride. Steps of the method include heating at least a portion of a wall of the process chamber; providing a liner covering a substantial portion of a wall of the process chamber; providing a remote chamber connected to the interior of the process chamber; causing a plasma of cleaning gas in the remote chamber; and flowing a portion of the plasma of cleaning gas into the process chamber. The apparatus includes a deposition chamber having walls; means for heating the walls, the means thermally coupled to the walls; a liner covering a substantial portion of the walls; a remote chamber disposed outside of the chamber; an activation source adapted to deliver energy into the remote chamber; a first conduit for flowing a precursor gas from a remote gas supply into the remote chamber where it is activated by the activation source to form a reactive species; and a second conduit for flowing the reactive species from the remote chamber into the deposition chamber.

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