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:
Sep. 23, 2008
Filed:
Apr. 29, 2005
Ulrich Mantz, Saxony, DE;
Shoaib Hasan Zaidi, Poughkeepsie, NY (US);
Christopher Gould, Quinton, VA (US);
Ulrich Mantz, Saxony, DE;
Shoaib Hasan Zaidi, Poughkeepsie, NY (US);
Christopher Gould, Quinton, VA (US);
Infineon Technologies AG, Munich, DE;
Infineon Technologies Richmond, LP, Sandston, VA (US);
Abstract
Targets or test structures used for measurements in semiconductor devices having long lines exceeding design rule limitations are divided into segments. In one embodiment, the segments have periodicity in a direction parallel to the length of the lines. In another embodiment, the segments of test structures in adjacent lines do not have periodicity in a direction parallel to the length of the lines. The lack of periodicity is achieved by staggering segments of substantially equal lengths in adjacent lines, or by dividing the lines into segments having unequal lengths. The test structures may be formed in scribe line regions or die regions of a semiconductor wafer.