Accessing memory cells in a memory circuit

Details Accessing memory cells in a memory circuit Accessing memory cells in a memory circuit

2011-01-18

2011-01-18

Nguyen, Tan T. (Department: 2827)

Static information storage and retrieval

Read/write circuit

Bad bit

C365S201000

Reexamination Certificate

active

07872929

ABSTRACT:
Techniques for accessing a memory cell in a memory circuit include: receiving a request to access a selected memory cell in the memory circuit; determining whether the selected memory cell corresponds to a normal memory cell or a weak memory cell in the memory circuit; accessing the selected memory cell using a first set of control parameters when the selected memory cell corresponds to a normal memory cell, wherein the selected memory cell provides correct data under prescribed operating specifications when accessed using the first set of control parameters; and accessing the selected memory cell using a second set of control parameters when the selected memory cell corresponds to a weak memory cell, wherein the selected memory cell provides correct data under the prescribed operating specifications when accessed using the second set of control parameters and provides incorrect data under the prescribed operating specifications when accessed using the first set of control parameters.

REFERENCES:
patent: 6104638 (2000-08-01), Larner et al.
patent: 7283395 (2007-10-01), Ziegelmayer

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