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:
Oct. 03, 2006
Filed:
Apr. 22, 2002
Applicant:
Ralf Hartmann, München, DE;
Inventor:
Ralf Hartmann, München, DE;
Assignee:
Infineon Technologies AG, Munich, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
An identifier is provided for an integrated circuit with a memory composed of a multiplicity of memory cells. The circuit has a manufacture-related memory cell defect pattern formed of defective memory cells. The method of identifying the integrated circuit utilizes the memory cell defect pattern to generate a circuit identification number for identifying the integrated circuit.