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US 11,114,143 B2Granted
Bipolar decoder for crosspoint memory cells
AssigneeIntel Corporation
InventorsBalaji Srinivasan, Sandeep K. Guliani, DerChang Kau, Ashir G. Shah
Life of this patent
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Abstract
A memory decoder enables the selection of a conductor of a row or column of a crosspoint array memory. The decoder includes a circuit to apply a bias voltage to select or deselect the conductor. The conductor can be either a wordline or a bitline. The decoder also includes a select device to selectively provide both high voltage bias and low voltage bias to the circuit to enable the circuit to apply the bias voltage. Thus, a single end device provides either rail to the bias circuit.
Claims23
A memory device, comprising:
- a crosspoint array of conductors, including rows and columns;
- and
- a decoder to select or deselect one of the conductors, the decoder including
- a driver circuit to apply a bias voltage to select or deselect the conductor, the driver circuit including a local deselector to selectively couple the conductor to a midline voltage and a local selector to selectively couple the conductor to a global conductor;
- and
- a select device including a global deselector to selectively couple the local selector to the midline voltage and a global selector to selectively couple the local selector to either a high voltage bias or a low voltage bias.
3 more elements
A system, comprising:
- a memory controller;
- and
- a memory device coupled to the memory controller, the memory device including
- a crosspoint array of conductors, including rows and columns;
- and
- a decoder to select or deselect one of the conductors, the decoder including
- a driver circuit to apply a bias voltage to select or deselect the conductor, the driver circuit including a local deselector to selectively couple the conductor to a midline voltage and a local selector to selectively couple the conductor to a global conductor;
- and
- a select device including a global deselector to selectively couple the local selector to the midline voltage and a global selector to selectively couple the local selector to either a high voltage bias or a low voltage bias.
6 more elements
Dependencies are inferred from the claim text.