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:
Jan. 11, 2005
Filed:
Oct. 25, 2002
Xin Song, Waltham, MA (US);
Stewart Hitelman, Westford, MA (US);
Chin-jung Hsu, North Andover, MA (US);
Xin Song, Waltham, MA (US);
Stewart Hitelman, Westford, MA (US);
Chin-Jung Hsu, North Andover, MA (US);
Other;
Abstract
A system for analyzing bitmap test data includes a fault shape analyzer which continuously and automatically receives bitmap test data. In use, the user creates at least one failure pattern analysis order to be performed by the fault shape analyzer, the order specifying a particular failure pattern to be identified. Based on the order, the fault shape analyzer creates a bitmap display of a user-specified sector using selected bitmap test data. The fault shape analyzer identifies the user-specified failure pattern in the bitmap display by multiplying, at various locations, the bitmap display in the frequency domain and the failure pattern in the frequency domain. A comparison between the product of the multiplication process and the failure pattern is performed to locate failure patterns in the bitmap display. Failure patterns identified from the comparison process are saved as defect files which, in turn, are stored in a failure pattern classification database.