Voltage boosting in mram current drivers
AssigneeMagSil Corporation
InventorsKrishnakumar Mani, Anil Gupta
Life of this patent
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Abstract
Disclosed is a current driving mechanism for a magnetic memory device, comprising: a) a current driver circuit; and b) a current decoding block coupled to the current driver circuit, wherein the current decoding block comprises a transistor M18 to control driver currents from the current driver circuit, and wherein the transistor M18 has a smaller form factor then otherwise possible by virtue of maintaining a gate thereof at a negative voltage.
Claims20
A current driving mechanism for a magnetic memory device, comprising:
- a current driver circuit;
- and
- a current decoding block coupled to the current driver circuit, wherein the current decoding block comprises a transistor M18 to control driver currents from the current driver circuit, and wherein the transistor M18 has a smaller form factor then otherwise possible by virtue of maintaining a gate thereof at a negative voltage.
A magnetic random access memory (MRAM) chip comprising:
- an array of memory cells;
- and
- a current driving mechanism coupled to the array of memory cells, the current driving mechanism comprising
- a current driver circuit;
- and
- a current decoding block coupled to the current driver circuit, wherein the current decoding block comprises a transistor M18 to control driver currents from the current driver circuit, and wherein the transistor M18 has a smaller form factor then otherwise possible by virtue of maintaining a gate thereof at a negative voltage.
A magnetic random access memory (MRAM) device comprising:
- a MRAM chip having an array of memory cells and a current driving mechanism coupled to the array of memory cells, the current driving mechanism comprising
- a current driver circuit;
- and
- a current decoding block coupled to the current driver circuit, wherein the current decoding block comprises a transistor M18 to control driver currents from the current driver circuit, and wherein the transistor M18 has a smaller form factor then otherwise possible by virtue of maintaining a gate thereof at a negative voltage.
A current driving mechanism for a magnetic memory device, comprising:
- a current driver circuit;
- and
- a current decoding block coupled to the current driver circuit, wherein the current decoding block comprises
- a transistor M30 to control driver currents from the current driver circuit;
- and
- a high voltage switch coupled to the transistor M30 to boost a voltage of a selected gate of the transistor M30 to a higher level, and wherein the transistor M30 is has a smaller form factor then otherwise possible by virtue of said boosting;
- and
- a charge pump circuit to disposed between the current driver circuit and the current decoding block to drive the high voltage switch.
Dependencies are inferred from the claim text.