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. 09, 1991
Filed:
Jul. 12, 1989
Applicant:
Inventors:
John Robbins, Sherman, TX (US);
Ricky L Boston, Denison, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
437 10 ; 437-9 ; 437939 ; 148D / ; 148D / ;
Abstract
A method of backside damaging a silicon semiconductor wafer by abrading the wafer in an abrasive powder is disclosed. The wafer is rotated or translated in the powder while the powder is being vibrated. A fixture holds one or more semiconductor wafers during the processing and allows the wafer to be rotated during processing if desired.