Thin film forming method

Coating processes – Direct application of electrical – magnetic – wave – or... – Plasma

Reexamination Certificate

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C427S579000, C427S255290

Reexamination Certificate

active

07141278

ABSTRACT:
A method for forming thin films of a semiconductor device is provided. The thin film formation method presented here is based upon a time-divisional process gas supply in a chemical vapor deposition (CVD) method, where the process gases are supplied and purged sequentially, and additionally plasma is generated in synchronization with the cycle of pulsing reactant gases. A method of forming thin films that possess a property of gradient composition profile is also presented.

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