Etching a substrate: processes – Etching of semiconductor material to produce an article...
Patent
1994-10-17
1997-09-09
Breneman, R. Bruce
Etching a substrate: processes
Etching of semiconductor material to produce an article...
216 27, 216 33, 216 88, 298901, 347 65, B24B 100, B41J 204
Patent
active
056652496
ABSTRACT:
An improved microelectromechanical device, such as a thermal ink jet die or printhead, is formed by the alignment of two planar substrates bonded together by an intermediate thick film layer of patterned polymeric material, such as polyimide. The improved device has a fully cured, patterned thick film layer which is planarized by chemical-mechanical polishing-to improve the bonding strength between the substrates. The planarization removes topographical formations generated during the deposition of the thick film layer and/or during the patterning of the recesses therein.
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Atkinson Diane
Burke Cathie J.
Ferringer Michael C.
Fisher Almon P.
Hawkins William G.
Alanko Anita
Breneman R. Bruce
Xerox Corporation
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