Chemistry: electrical and wave energy – Processes and products
Patent
1989-07-18
1991-09-03
Niebling, John F.
Chemistry: electrical and wave energy
Processes and products
525420, 525431, 525436, C25C 300
Patent
active
050451596
ABSTRACT:
Derivatives of compounds containing a carbonyl group conjugated to an aromatic moiety and methods of fabrication thereof consisting of a thioether, an ester, an ether, a phosphate and a silylether. Electrons are supplied to the carbonyl group conjugated to an aromatic moiety to form a reduced material. The reduced material is contacted with an electrophile which attacks and chemically combines with the carbonyl group conjugated to an aromatic moiety. The parent material can be regenerated by hydrolysis of the derivative. A silyl derivative can be selectively formed on a polyimide material surface which can act as a barrier to an RIE etch of the polyimide material. After etch the polyimide material is regenerated from the silyl derivative.
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Goldberg Martin J.
Morris Daniel P.
Viehbeck Alfred
International Business Machines - Corporation
Marquis Steven P.
Morris Daniel P.
Niebling John F.
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