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:
Aug. 26, 2003
Filed:
Apr. 29, 2002
Hi-Choon Lee, Kyungki-do, KR;
Byoung-ju Kim, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
A semiconductor memory device, which is capable of adjusting the number of banks from 2N to N and thus increasing product production and repair efficiency, and a method thereof are provided. The semiconductor memory device includes a switching circuit, a control circuit, and a redundant circuit. The switching circuit selectively transmits a first address or a second address in response to a control signal. The control circuit selectively activates 2 banks in response to N− (where N is a natural number) bank selection addresses and the first address or selectively activates 2 banks in response to the N−1 bank selection addresses. The redundant circuit controls repair of the defective normal memory cells. Each of the 2 banks comprises one memory block. Each of the 2 banks comprises 2 memory blocks, each of which is selectively activated in response to the second address. It is preferable that the defective normal memory cells are repaired in an activated bank in response to an output signal of the redundant circuit.