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US 2025/0087289 A1Published application
Signal drop compensated memory
AssigneeMicron Technology, Inc.
InventorFerdinando Bedeschi
Life of this patent
Estimating the term…
Abstract
Apparatuses and methods for compensating for signal drop in memory. Compensating for signal drop can include applying a first signal to a terminal of a particular transistor and mirroring the first signal to a decoder replica. Compensating for signal drop can also include applying a second signal to a gate of the particular transistor, the second signal comprising a sensing signal and a signal drop on the decoder replica and sensing a state of the particular transistor.
Claims20
An apparatus, comprising:
- a memory array comprising memory cells;
- sensing circuitry coupled to the memory array and configured to:
- apply, using a first transistor and a capacitor of a current mirror, a first signal to a terminal of a particular transistor;
- mirror the first signal to circuitry using a second transistor and the capacitor of the current mirror;
- apply a second signal to a gate of the particular transistor, the second signal comprising a signal drop on the circuitry;
- and
- sense a state of the particular transistor.
4 more elements
An apparatus, comprising:
- a memory array comprising memory cells;
- sensing circuitry coupled to the memory array and comprising:
- a decoder coupled to the memory array;
- circuitry, which replicates the decoder, coupled to the memory array;
- and
- different circuitry coupled to the circuitry and to the memory array, wherein the different circuitry is configured to provide a signal to a terminal of a selected transistor, using a first transistor and a capacitor, and a mirrored signal to the circuitry using a second transistor and the capacitor, wherein the capacitor is coupled to a first gate of the first transistor and a second gate of the second transistor;
- wherein the circuitry is configured to provide a different signal corresponding to a signal drop of the circuitry to a gate of the selected transistor, wherein the signal drop replicates a corresponding signal drop of the decoder;
- wherein the sensing circuitry is configured to:
- provide a sensing signal to the gate of the selected transistor simultaneously with the different signal;
- and
- sense a state of the selected transistor.
8 more elements
A method, comprising:
- providing, from a current mirror and using the capacitor, a first transistor coupled to the capacitor via a first gate of the first transistor, and a second transistor coupled to the capacitor via a second gate of the second transistor, a mirrored signal to a terminal of a selected transistor and to circuitry subsequent to providing a signal to the terminal of the selected transistor of sensing circuitry;
- generating a signal drop, at the circuitry, using the mirrored signal received from the second transistor, wherein the signal drop replicates a corresponding signal drop of a decoder;
- and
- responsive to determining that the signal drop is greater than a threshold, setting a register to identify a plurality of actions that are to be performed on an output of the decoder comprising the selected transistor.
1 more element
Dependencies are inferred from the claim text.