Gas treatment apparatus and method

Adhesive bonding and miscellaneous chemical manufacture – Delaminating processes adapted for specified product – Delaminating in preparation for post processing recycling step

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23294R, 156610, 156611, 118730, C23C 1600

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active

047723564

ABSTRACT:
Substrates such as semiconductor wafers are treated with a gas by advancing the substrate along a path, preferably a circular path through the gas while maintaining a face of the substrate transverse, preferably oblique, to the path so that the gas contacts be exposed from the face of the substrate. Preferably, a plurality of substrates are treated simultaneously, and the substrates serve as vanes to impel the gas into rotational motion, thereby pumping the gas through the process chamber. Preferably, the substrates are carried on susceptors having generally planar faces, the susceptors also serving as vanes impelling the gas into rotational motion. The gas may be a depositing gas for forming epitaxial layers on the faces of the substrates, or an etching gas.

REFERENCES:
patent: 3384049 (1968-05-01), Capita
patent: 3407783 (1968-10-01), Capita
patent: 3408982 (1968-11-01), Capita
patent: 3659552 (1972-05-01), Briody
patent: 3885061 (1975-05-01), Corboy et al.
patent: 4485759 (1984-12-01), Brandolf
patent: 4579080 (1986-04-01), Martin et al.

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