Method for etching tungsten

Adhesive bonding and miscellaneous chemical manufacture – Delaminating processes adapted for specified product – Delaminating in preparation for post processing recycling step

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Details

156646, 156651, 156656, 156664, 20412932, 20419235, C23F 102

Patent

active

049975200

ABSTRACT:
A method for etching a tungsten film which includes introducing activated species of a halogenated hydrocarbon to the tungsten film.

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Franssila, Sami "Tungsten Dry Etching in Medium Pressure Single Wafer Etcher", May, 1988.
Burba et al., "Selective Dry Etching of Tungsten for VLSI Metallization", Oct. 1986, Journal of the Electrochemical Society.

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