Metal working – Piezoelectric device making
Reexamination Certificate
2006-09-12
2006-09-12
Kim, Paul D. (Department: 3729)
Metal working
Piezoelectric device making
C029S592100, C029S594000, C029S609100, C181S171000, C181S172000, C310S31300R, C310S31300R, C361S310000, C361S310000, C235S454000, C235S455000, C235S492000
Reexamination Certificate
active
07103948
ABSTRACT:
The invention provides a method of manufacturing piezoelectric wafers of surface acoustic wave (SAW) identification tags. In one embodiment, the method includes: (1) using a master reticle to form, on each of the piezoelectric wafers, wafer-independent patterns that encode digits of a first significance for SAW identification tags; and (2) using different ones of a library of coding reticles to form, on each of the piezoelectric wafers, wafer-dependent patterns that encode digits of a second significance for SAW identification tags.
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“Design, Fabrication, and Application of GHz SAW Devices” by Ulrich Knauer, et al.; 1997 IEEE; pp. 1821-1030.
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Brown Paul S.
Hartmann Clinton S.
Kim Paul D.
RF Saw Components, Inc.
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