Semiconductor storage apparatus

Details Semiconductor storage apparatus Semiconductor storage apparatus

2006-08-08

2006-08-08

Nguyen, Tuan T. (Department: 2824)

Static information storage and retrieval

Read/write circuit

Differential sensing

C365S185200, C365S185210, C365S185250, C365S189090

Reexamination Certificate

active

07088631

ABSTRACT:
A semiconductor storage apparatus includes a cell array including memory cells and reference cells, normal column selection transistors connected to columns of the memory cells, a normal data line array including normal data lines connected to columns of the memory cells, first dummy data lines formed of a same wiring layer of which the normal data lines are formed, a normal data line charging circuit, reference column selection transistors connected to reference columns of the reference cells, a reference data line array including reference data lines formed of a same wiring layer of which the normal data lines are formed, second dummy data lines formed of a same wiring layer of which the reference data lines are formed, a reference data line charging circuit, a first dummy data line charging circuit, a second dummy data line charging circuit, and a sense amplifier which senses data stored in the memory cells.

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patent: 6795350 (2004-09-01), Chen et al.
patent: 2001-256789 (2001-09-01), None

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