Process for selective etching of polymeric materials embodying s

Details Process for selective etching of polymeric materials embodying s Process for selective etching of polymeric materials embodying s

1976-09-07

1979-02-20

Massie, Jerome W.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

134 28, 134 34, 156656, 156657, 156661, 156662, 156664, 156668, 156904, 252 793, 427336, 427404, 427407R, H01L 2194, H01L 2330

Patent

active

041405722

ABSTRACT:
Titanium is employed as a masking material for the selective etching of a coating material of a polyimide-silicone copolymer disposed on selective surface areas of electronic devices.

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patent: 3640778 (1972-02-01), Winfree et al.
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patent: 3770560 (1973-11-01), Elder et al.
patent: 3817844 (1974-06-01), Kendall
patent: 3871929 (1975-03-01), Schevey et al.
patent: 3890177 (1975-06-01), Pfnahl et al.
patent: 3926911 (1975-12-01), Greber et al.
patent: 3962004 (1976-06-01), Sonneborn
patent: 3978578 (1976-09-01), Murphy

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