Method of plasma etching

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

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156345, 20429838, B44C 122

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054358868

ABSTRACT:
A method of electron cyclotron resonance plasma etching including generating a constant plasma in a gas in a chamber containing a semiconductor wafer by supplying microwave energy to the chamber continuously and applying a pulsed direct current bias to the semiconductor wafer, wherein the pulsed bias has a period substantially equal to a time constant determined by the capacitance of the semiconductor wafer and the resistance of an ion sheath at the surface of the semiconductor wafer.

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patent: 5192717 (1993-03-01), Kawakami
Caughman et al, "The Effects of Substrate Bias on Plasma Parameters in an Electron Cyclotron Resonance Plasma Reactor", J. Vac. Sci. Technology A9 (6), Nov./Dec. 1991, pp. 3113-3118.
"Ferromagnetic Electrode for Magnetically-Enhanced Plasma Processing System", IBM Technical Disclosure Bulletin, vol. 31, No. 3 Aug. 1988, pp. 263-264.
Dunne Schichten Heft 4 (1992) S. 13-15.
Morimoto et al, "The Influence Of Incident Angle Distributions Of Plasma Particles On The Etched Profiles Of Silicon Films", 1991 Dry Process Symposium, pp. 57-62.

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