Semiconductor memory device having a dummy cell and a memory cel

Details Semiconductor memory device having a dummy cell and a memory cel Semiconductor memory device having a dummy cell and a memory cel

1984-03-07

1987-02-03

Fears, Terrell W.

Static information storage and retrieval

Systems using particular element

Capacitors

365210, 365186, 357 55, G11C 1140

Patent

active

046412794

ABSTRACT:
In a semiconductor memory device including memory and dummy cells connected to groups of data lines, word lines and dummy word lines for selecting the memory and dummy cells, respectively, and a signal detector for differentially amplifying the read signal from the memory cell selected by the signal of the word line and a reference signal from the dummy cell, the improvement wherein the memory cell capacitor consists of two capacitors, each having substantially the same structure as a dummy cell capacitor and connected in parallel with the other.

REFERENCES:
patent: 3678473 (1972-07-01), Wahlstrom
patent: 4138740 (1979-02-01), Itoh
patent: 4327476 (1982-05-01), Iwai et al.
patent: 4353086 (1982-10-01), Jaccodine et al.

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