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:
Feb. 22, 2005
Filed:
May. 21, 2002
Applicants:
Udo Hartmann, München, DE;
Jochen Kallscheuer, München, DE;
Peter Beer, Tutzing, DE;
Inventors:
Assignee:
Infineon Technologies AG, Munich, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L021/66 ; G06F017/50 ; G01R031/28 ;
U.S. Cl.
CPC ...
Abstract
A method for testing semiconductor chips, in particular semiconductor memory chips, is described. In which, in a chip to be tested, at least one test mode is set, the test mode is executed in the chip and test results are output from the chip. It is provided that, after the setting and before the performance of the test mode, a check mode is executed in which the status of the test mode set in the chip is read out in a defined format.