The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 12, 2006
Filed:
Jan. 28, 2002
Applicants:
Clinton S. Hartmann, Dallas, TX (US);
Paul S. Brown, Garland, TX (US);
Inventors:
Clinton S. Hartmann, Dallas, TX (US);
Paul S. Brown, Garland, TX (US);
Assignee:
RF Saw Components, Inc., Richardson, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 17/00 (2006.01);
U.S. Cl.
CPC ...
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.