Integrated circuit memory devices including overlapping power li

Details Integrated circuit memory devices including overlapping power li Integrated circuit memory devices including overlapping power li

1997-11-26

1999-08-10

Nelms, David

Static information storage and retrieval

Format or disposition of elements

365 63, 36518908, G11C 502

Patent

active

059368756

ABSTRACT:
Integrated circuit memory devices include overlapping bit lines and power supply lines. The integrated circuit memory devices include a memory cell array in an integrated circuit substrate and a plurality of spaced apart bit lines on the memory cell array, extending in a first direction. A plurality of spaced apart power lines are also included on the memory cell array, extending in the first direction, and on at least one of the plurality of bit lines. The overlapping bit lines and power supply lines are insulated from one another, for example by providing these lines in first and second patterned conductive layers. Accordingly, higher density integrated circuit devices may be provided while allowing high speed operation and effective power supply voltage distribution.

REFERENCES:
patent: 5007025 (1991-04-01), Hwang et al.
patent: 5040143 (1991-08-01), Matsumura et al.
patent: 5040144 (1991-08-01), Pelley et al.
patent: 5195054 (1993-03-01), Noda
patent: 5390140 (1995-02-01), Tomishima et al.
patent: 5598363 (1997-01-01), Uchida
patent: 5699289 (1997-12-01), Takenaka

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