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:
Jun. 01, 2004
Filed:
May. 22, 2002
Alan Morgan, Stockton-on-Tees, GB;
Infineon Technologies AG, Munich, DE;
Abstract
A semiconductor memory apparatus includes a first and second memory bank. Each of these memory banks has a plurality of row and column lines and at least one redundant column line. An activation device selectively activates the redundant column line, thereby causing the redundant column line to become a replacement line for a defective column line. The activation device includes a plurality of programmable addressing fuses, and a programmable selection fuse having at least two electrical selection fuse states. The programmable selection fuse is configured such that an addressing fuse in the first selection fuse state is electrically associated with the first memory bank and an addressing fuse in the second selection fuse state is electrically associated with the second memory bank.