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. 20, 2001
Filed:
Mar. 17, 2000
Thoralf Grätz, Dresden, DE;
Patrick Heyne, München, DE;
Dieter Härle, München, DE;
Helmut Schneider, München, DE;
Infineon Technologies AG, Munich, DE;
Abstract
A dynamic memory includes memory cells combined to form blocks and blocks combined to form at least one block group. The memory also includes bit lines and word lines connected to the memory cells for selecting the memory cells, redundant memory cells within the blocks, at least one redundant word line in at least one of the blocks, and a decoder unit connected to the word lines. The redundant word lines are connected to the redundant memory cells for selecting the redundant memory cells. A redundant word line, after redundancy programming has been carried out, selectively replaces a word line in any of the blocks. In a first mode of operation, no more than one of the word lines is selected simultaneously per block group. In a second mode of operation, more than one of the word lines is selected simultaneously per block group, and redundancy programming is deactivated.