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:
Aug. 06, 1991
Filed:
Jun. 21, 1989
Applicant:
Inventor:
Robert E Steere, Jr, Boonton, NJ (US);
Assignee:
Silicon Technology Corporation, Oakland, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24B / ; B24B / ; B24B / ;
U.S. Cl.
CPC ...
5110 / ; 5128 / ; 51 3 / ; 5116571 ;
Abstract
The grinder is provided with a grind burr which is programmed to form a notch in a peripheral edge of a wafer before or after grinding of the peripheral edge of the wafer. The grind burr is mounted on the housing of the grinding wheel to be moved in common therewith. The grind wheel housing can be moved vertically to bring the grind burr into alignment with the edge of the wafer.