Patent Number: 7,826,295

Title: Semiconductor memory device including a repair circuit which includes mode fuses

Abstract: In a semiconductor memory device, a repair circuit includes mode fuses to select one of plural repair modes corresponding to plural kinds of defects, respectively. The semiconductor memory device can repair a defective memory cell having operational margin defect without using redundancy memory cells.

Inventors: Masumizu; Atsushi (Tokyo, JP), Okuma; Sadayuki (Tokyo, JP)

Assignee: Elpida Memory, Inc.

International Classification: G11C 17/18 (20060101)

Expiration Date: 2019-11-02 0:00:00