Wafer produced by method of quality control for chemical vapor deposition

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United States of America Patent

SERIAL NO

09732473

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A residual gas analyzer can be used as a deposition rate monitor. A deposition rate monitor is based on the detection of growth precursors and reaction byproducts of the thin film growth in deposition equipment such as chemical vapor deposition (CVD) systems. The growth precursors and byproducts are identified and quantified by using a residual gas analyzer (RGA). The ion current from gas species associated with the growth rate is then empirically correlated with the thickness of the film. The specific chemical species detected by the RGA is unique to the material that is deposited and to the technique in which the material is deposited.

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Patent Owner(s)

Patent OwnerAddress
NATIONAL SEMICONDUCTOR CORPORATION2900 SEMICONDUCTOR DRIVE SANTA CLARA CA 95051

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Ching-Wei Sunnyvale, CA 64 803
Gaughen, Kevin Los Gatos, CA 1 27
Li, Minxu Hollister, CA 3 59

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