Semiconductor device manufacturing: process – Chemical etching – Combined with the removal of material by nonchemical means
Reexamination Certificate
2006-12-12
2006-12-12
Norton, Nadine (Department: 1765)
Semiconductor device manufacturing: process
Chemical etching
Combined with the removal of material by nonchemical means
C252S079100, C252S079400
Reexamination Certificate
active
07148147
ABSTRACT:
A composition and process for the precision polishing of substrates such as semi-conductor chips is disclosed. The composition and process make use of soluble or insoluble organic nitro compounds as oxidizers and/or abrasive particles. Nitrogen containing reduction products of the foregoing organic nitro compounds may also be included.
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Carmody & Torrance LLP
J.G. Systems Inc.
Norton Nadine
Umez-Eronini Lynette T.
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