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. 15, 2003
Filed:
Jan. 12, 2001
Applicant:
Inventors:
Cary S. Kiest, Albany, OR (US);
William F. Lenzke, Jr., Salem, OR (US);
Assignee:
Electroglas, Inc., Corvallis, OR (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 1/300 ; G06K 9/00 ;
U.S. Cl.
CPC ...
F21V 1/300 ; G06K 9/00 ;
Abstract
Plural light sources are provided for directing ring patterns of light toward at least one reflective bump formed on and projecting from a first wafer surface of a semiconductor wafer. The intensity of light from the light sources may be varied and may be varied independently of one another.