Patent ID: 6921456

Claim:
A high pressure chamber for processing of a semiconductor substrate comprising: a. a chamber housing comprising a first sealing surface; b. a spacer containing a plurality of injection nozzles, the spacer sealing to the first sealing surface; c. a platen comprising a region for holding the semiconductor substrate and a second sealing surface; and d. a single mechanical drive mechanism having a single pressure source, the single mechanical drive mechanism coupling the platen to the chamber housing such that in operation the single mechanical drive mechanism separates the second sealing surface from the spacer for loading of the semiconductor substrate and further such that in operation the said single mechanical drive mechanism causes the second sealing surface of the platen to seal to the spacer, such that the spacer, the first sealing surface, and the second sealing surface form and maintain a wafer cavity containing the region for holding the semiconductor substrate during high pressure processing.