Vacuum-integrated hardmask processes and apparatus

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United States of America Patent

PATENT NO 9778561
SERIAL NO

14610038

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Abstract

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Vacuum-integrated photoresist-less methods and apparatuses for forming metal hardmasks can provide sub-30 nm patterning resolution. A metal-containing (e.g., metal salt or organometallic compound) film that is sensitive to a patterning agent is deposited on a semiconductor substrate. The metal-containing film is then patterned directly (i.e., without the use of a photoresist) by exposure to the patterning agent in a vacuum ambient to form the metal mask. For example, the metal-containing film is photosensitive and the patterning is conducted using sub-30 nm wavelength optical lithography, such as EUV lithography.

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Patent Owner(s)

  • LAM RESEARCH CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Antonelli, George Andrew Portland, US 48 3369
Gottscho, Richard A Pleasanton, US 33 1299
Hausmann, Dennis M Lake Oswego, US 71 8883
Knisley, Thomas Joseph Beaverton, US 19 1229
Kolics, Artur Dublin, US 74 1323
LaVoie, Adrien Newberg, US 182 14858
Marks, Jeffrey Saratoga, US 98 4597
Reddy, Sirish K Hillsboro, US 16 985
Varadarajan, Bhadri N Beaverton, US 57 3769

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