Semiconductor device manufacturing unit

Coating apparatus – Gas or vapor deposition – With treating means

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Details

118729, 118725, 118500, 118733, C23C 1308

Patent

active

044871619

ABSTRACT:
A semiconductor device manufacturing unit in which plasma gas is maintained sealed in a quartz tube by a magnet disposed outside the quartz tube to make the density of plasma gas high and uniform thereby improving the quality of CVD films deposited with the gas and reducing the processing time for semiconductor wafers. A wafer holder is movably mounted in the quartz tube. A support bar is provided for moving the wafer holder with the support bar serving additionally as a ground electrode. An RF electrode and magnet are disposed outside the quartz tube. A heater may be disposed outside the RF electrode and magnet.

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patent: 4223048 (1980-09-01), Engle, Jr.

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