Small-sized multi-valued semiconductor memory device with couple

Details Small-sized multi-valued semiconductor memory device with couple Small-sized multi-valued semiconductor memory device with couple

1997-02-24

1999-01-05

Nelms, Daivd

Static information storage and retrieval

Systems using particular element

Capacitors

365 51, 365 63, G11C 1124

Patent

active

058569383

ABSTRACT:
In a 2.sup.m (m=1, 2, . . . )-valued semiconductor memory device, including a plurality of word lines, a plurality of bit line pairs, and a plurality of memory cells each connected to one of the word lines and one bit line of the bit line pairs, each of the bit line pairs are divided into m divided bit line pairs, and a ratio of capacitances of the m divided bit line pairs is 1:2: . . . :2.sup.m-1. Also, each sense amplifier is connected to one of the bit line pairs. Further, each of coupled capacitor pairs is cross-coupled between two adjacent divided bit line pairs of the divided bit line pairs.

REFERENCES:
patent: 4980860 (1990-12-01), Houston et al.
patent: 5406512 (1995-04-01), Kagenishi
patent: 5416734 (1995-05-01), Hidaka et al.
patent: 5592411 (1997-01-01), Tai
patent: 5596521 (1997-01-01), Tanaka et al.

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