Shielded bitlines for static RAMs

Details Shielded bitlines for static RAMs Shielded bitlines for static RAMs

1999-02-10

1999-10-12

Le, Vu A.

Static information storage and retrieval

Hardware for storage elements

Shields

365154, G11C 700, H01L 2710

Patent

active

059663170

ABSTRACT:
With shrinking dimensions, and closely spaced runners, capacitive coupling between bitlines in dual port SRAMS becomes an important design issue. Techniques for reducing that coupling are described. A shielding runner placed between the read and write bitlines and tied to V.sub.DD or V.sub.SS substantially reduces unwanted crosstalk. Word lines can be similarly isolated.

REFERENCES:
patent: 5523968 (1996-06-01), Kimura

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