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. 07, 2014
Filed:
Jun. 17, 2011
Peter Huber, Neubiberg, DE;
Winfried Kamp, Munich, DE;
Joel Hatsch, Holzkirchen, DE;
Michel D'argouges, Munich, DE;
Siegmar Koeppe, Munich, DE;
Thomas Kuenemund, Munich, DE;
Peter Huber, Neubiberg, DE;
Winfried Kamp, Munich, DE;
Joel Hatsch, Holzkirchen, DE;
Michel d'Argouges, Munich, DE;
Siegmar Koeppe, Munich, DE;
Thomas Kuenemund, Munich, DE;
Infineon Technologies AG, Neubiberg, DE;
Abstract
A semiconductor device includes an identification circuit. The identification circuit includes a memory cell which includes a first transistor having a first value of a switching characteristic and a second transistor having a second value of the switching characteristic. The identification circuit is operable to generate a memory-cell-specific identification bit which is dependent on production-dictated differences in the first switching characteristic of the first transistor and the second switching characteristic of the second transistor. The identification circuit further includes a drive circuit for the memory cell. The drive circuit is operable to connect or isolate an upper supply potential and a lower supply potential of the semiconductor device to or from the memory cell independently of one another.