Context protection for a column interleaved memory
AssigneeTexas Instruments Incorporated
InventorsLakshmikantha Holla, Thomas ATON, Steve PRINS, Dharaneedharan S.
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Abstract
A semiconductor memory cell includes a set of circuit structures, each having column input/output circuits. The semiconductor memory cell further includes a set of replicas corresponding to the column input/output circuits. The set of replicas are non-functional and fills an empty space next to the column input/output circuits and hence, provides context protection for the column input/output circuits.
Claims16
A semiconductor memory cell comprising:
- a set of circuit structures, each comprising column input/output circuits;
- and
- a set of replicas, that are non-functional, corresponding to the column input/output circuits, the set of replicas configured to fill an empty space next to the column input/output circuits, wherein the set of replicas provide context protection for the column input/output circuits.
A semiconductor memory layout comprising:
- a memory cell array having a plurality of semiconductor memory cells being arranged in rows and columns;
- a plurality of bit lines coupled to the semiconductor memory cells arranged in columns and a plurality of word lines coupled to the semiconductor memory cells arranged in rows;
- a set of circuit structures, each comprising column input/output circuits;
- and
- a set of replicas, that are non-functional, corresponding to the column input/output circuits, the set of replicas configured to fill an empty space next to the column input/output circuits, wherein the set of replicas provide context protection for the column input/output circuits.
A method for providing context protection in a semiconductor memory cell, the method comprising:
- creating column input/output circuits for a given MUX factor during memory build;
- reusing column input/output circuits across a higher MUX factor;
- creating a set of replicas of the column input/output circuits in an empty space, the empty space being created by reusing column input/output circuits;
- and
- inactivating the set of replicas such that context protection is provided for the column input/output circuits.
Dependencies are inferred from the claim text.