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:
Apr. 17, 1984
Filed:
Jul. 26, 1982
Applicant:
Inventors:
Stephen Wanuga, Liverpool, NY (US);
Wendell M Kong, Liverpool, NY (US);
Cleo M Stearns, Jamesville, NY (US);
Assignee:
General Electric Company, Syracuse, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
29 2535 ; 2191 / ; 310312 ;
Abstract
Surface acoustic wave devices with precisely set frequencies are produced by laser trimming metallization strips on the device while monitoring the device frequency and/or phase shift. The trimming strips may be metallizations added during device manufacture or after device manufacture, or they may include selected ones of the reflecting gratings.