Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor
Patent
1984-07-23
1985-12-24
Schwartz, Larry I.
Drying and gas or vapor contact with solids
Apparatus
With means to treat gas or vapor
34 58, 118 52, 414744B, F26B 508
Patent
active
045597189
ABSTRACT:
A semiconductor wafer is held on a first rotating element in a manner having a first portion of one surface of the wafer stuck on the first rotating element. The first rotating element is rotated together with the wafer thus held thereon to remove moisture from surface portions of the wafer other than the first portion. Then, the wafer is held on a second rotating element in a manner having a second portion of the one surface of the wafer stuck on the second rotating element. The second rotating element is rotated together with the wafer thus held thereon to remove moisture from the surfaces of the wafer including at least the first portion thereof, thereby completely drying the wafer.
REFERENCES:
patent: 3730134 (1973-05-01), Kadi
patent: 4280689 (1981-07-01), Frosch et al.
patent: 4313266 (1982-02-01), Tam
OKI Electric Industry Co., Ltd.
Schwartz Larry I.
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