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:
Nov. 18, 2003
Filed:
Jul. 13, 2001
Udo Hartmann, München, DE;
Infineon Technologies AG, Munich, DE;
Abstract
An integrated semiconductor memory includes memory cells in a plurality of memory cell arrays disposed on a semiconductor chip in levels running above one another. A plurality of the memory cells are respectively combined to form normal units of memory cells, as well as redundant units of memory cells for replacing a respective one of the normal units. The normal units and the redundant units respectively include memory cells from memory cell arrays in a plurality of the levels. In the case of a faulty memory cell, the relevant normal unit is replaced by one of the redundant units. This permits a reduced number of programmable elements to be used for programming the redundant memory cells to repair the memory. A method for repairing such a memory is also provided.