Semiconductor memory device and method of operating the same

Details Semiconductor memory device and method of operating the same Semiconductor memory device and method of operating the same

2005-09-13

2005-09-13

Phung, Anh (Department: 2824)

Static information storage and retrieval

Read/write circuit

Bad bit

C365S230030, C365S222000

Reexamination Certificate

active

06944074

ABSTRACT:
A semiconductor memory device and method of operating the same that replaces a fail normal word line that is coupled to a fail memory cell with a redundant word line from a redundant memory block. If the fail normal word line is selected during operation, both the fail normal word line and the redundant word line are activated at the same time to increase capacitance at the sense amplifier. Therefore, it may be possible to increase the exactness of a read operation or a refresh operation, and thereby improve reliability of a device operation by increasing a comparison margin of the sense amplifier.

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