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:
Nov. 23, 2010
Filed:
Apr. 14, 2009
Applicant:
Louis J. Markoya, Sandy Hook, CT (US);
Inventor:
Louis J. Markoya, Sandy Hook, CT (US);
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01); H01L 21/66 (2006.01); H01L 21/76 (2006.01); G01R 31/26 (2006.01); G01B 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An alignment target with geometry designs provides a desired alignment offset for processes (both symmetric and asymmetric) on a wafer substrate. The alignment target includes one or more sub-targets, where each sub-target is defined as having a left portion and a right portion having a different geometric pattern, and where the left portion has a geometry density and the right portion has a geometry density.