Coating apparatus – Gas or vapor deposition – Work support
Patent
1991-05-21
1993-03-09
Bueker, Richard
Coating apparatus
Gas or vapor deposition
Work support
118715, 118500, C23C 1646
Patent
active
051923718
ABSTRACT:
A substrate supporting apparatus having a plurality of support plates positioned in parallel for supporting a plurality of substrates to be treated. The plates (13), (23) and (33) have respectively central openings (14), (24) and (34) which differ in size, and have respectively a plurality of clips (15), (25) and (35) along the periphery of the opening to support a substrate above the opening. The sizes of said openings (14, 24, 34) are determined depending upon reactive gas condition (e.g., temperature, pressure, flow characteristics of reactive gas) so that a uniform thin film can be formed on each substrate and an impurity introduced into the thin film can have a suitable concentration.
Fukazawa Yasushi
Ohsaki Minoru
Shuto Mitsutoshi
ASM Japan K.K.
Bueker Richard
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