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:
Mar. 15, 2011
Filed:
Jan. 14, 2008
Edward J. Crawford, Hopewell Junction, NY (US);
Yunsheng Song, Poughkeepsie, NY (US);
Tso-hui Ting, Stormville, NY (US);
Edward J. Crawford, Hopewell Junction, NY (US);
Yunsheng Song, Poughkeepsie, NY (US);
Tso-Hui Ting, Stormville, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method of establishing a lot grading system for lots in a semiconductor manufacturing process includes defining a new lot grade for at least one lot in the semiconductor manufacturing process. The at least one lot is has a current lot grade and the new lot grade is dependent upon the current lot grade. The new lot grade is saved in a grading referenced database and the at least one lot in the semiconductor manufacturing process is updated with the new lot grade.