Dosimetry using optical emission spectroscopy/residual gas analyzer in conjunction with ion current

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United States of America Patent

PATENT NO 7531469
APP PUB NO 20080075834A1
SERIAL NO

11681313

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention generally provides methods and apparatus for controlling ion dosage in real time during plasma processes. In one embodiment, ion dosages may be controlled using in-situ measurement of the plasma from a mass distribution sensor combined with in-situ measurement from an RF probe.

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Patent Owner(s)

  • APPLIED MATERIALS, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cho, Seon-Mee Santa Clara , US 45 3277
Foad, Majeed A Sunnyvale, US 71 1937
Ramaswamy, Kartik San Jose , US 347 17170
Tanaka, Tsutomu Santa Clara, US 396 10589

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