Chemistry: electrical and wave energy – Processes and products – Coating – forming or etching by sputtering
Reexamination Certificate
2005-08-16
2005-08-16
McDonald, Rodney G. (Department: 1753)
Chemistry: electrical and wave energy
Processes and products
Coating, forming or etching by sputtering
C204S192320, C204S298360, C216S066000
Reexamination Certificate
active
06929721
ABSTRACT:
Method and apparatus for reducing the curvature of a micromachined structure having lamella (12). Surface treatment by an ion beam (30) of the lamella (12) such as by sputtering removes regions of stress allowing the lamella (12) to return to a planar condition. The resulting outer surface is made suitable for use as a reflector and other purposes needing a substantially planar surface.
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patent: 4756796 (1988-07-01), Saitou
patent: 5922212 (1999-07-01), Kano et al.
patent: 6529311 (2003-03-01), Bifano et al.
patent: 198 14 760 (1999-10-01), None
patent: 19814760 (1999-10-01), None
patent: 63-84114 (1988-04-01), None
patent: 3-103391 (1991-04-01), None
McDonald Rodney G.
The Trustees of Boston University
Weingarten Schurgin, Gagnebin & Lebovici LLP
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