Semiconductor memory device

Details Semiconductor memory device Semiconductor memory device

1990-10-02

1992-08-18

Bowler, Alyssa H.

Static information storage and retrieval

Systems using particular element

Semiconductive

36518901, 36518909, 365190, 365 63, G11C 700, G11C 800, G11C 11409

Patent

active

051405504

ABSTRACT:
A semiconductor memory device is provided which includes a plurality of memory arrays each including main word lines, sub word lines to which a plurality of memory cells are connected, and a decoder which selectively connects the sub word lines to the main word lines. The main word lines are relatively short, since they are isolated electrically between memory arrays, and their resistance can thus be relatively low. The main word lines are not directly connected with a plurality of memory cells, and this results in a smaller capacitance coupled to the main word lines than is customarily the case. Consequently, the semiconductor memory device can have an enhanced operating speed.

REFERENCES:
patent: 4713796 (1987-12-01), Ogive et al.
patent: 4727517 (1988-02-01), Ueno et al.
patent: 4807194 (1989-02-01), Yamada et al.
patent: 4935901 (1990-06-01), Sasaki et al.
patent: 4939696 (1990-07-01), Katsuo et al.
patent: 4961164 (1990-10-01), Miyaoka et al.

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