# US 12,183,416 B2 · Apparatuses including temperature-based threshold voltage compensated sense amplifiers and methods for compensating same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,183,416 B2 - Document ID: US12183416B2 - Status: Granted - Kind: B2 - Application number: 17/741,092 - Filed: 2022-05-10 - Published: 2022-08-25 - Granted: 2024-12-31 - Earliest claimed: 2019-05-24 - Applicants: Micron Technology, Inc. - Inventors: Boon Hor Lam; Karl L. Major; Jonathan Hawkins; Galaly Ahmad - Web page: https://patentgrep.com/patent/US12183416B2 ## CPC - G11C 7/08: Control thereof - G11C 7/04: with means for avoiding disturbances due to temperature effects - G11C 7/065: {Differential amplifiers of latching type} - G11C 7/12: Bit line control circuits, e.g. drivers, boosters, pull-up circuits, pull-down circuits, precharging circuits, equalising circuits, for bit lines - G11C 7/22: Read-write [R-W] timing or clocking circuits; Read-write [R-W] control signal generators or management - G11C 11/4091: Sense or sense/refresh amplifiers, or associated sense circuitry, e.g. for coupled bit-line precharging, equalising or isolating - G11C 11/4094: Bit-line management or control circuits - G11C 2207/002: Isolation gates, i.e. gates coupling bit lines to the sense amplifier - G11C: STATIC STORES (semiconductor memory devices H10B) ## Abstract Systems, methods, and apparatuses for temperature-compensated operation of electronic devices are described. For example, an apparatus for performing voltage compensation on a sense amplifier based on temperature may include a sense amplifier control circuit coupled to the sense amplifier to provide a compensation pulse to the sense amplifier, wherein the sense amplifier operates in a voltage compensation phase during the compensation pulse. The apparatus may determine the compensation pulse responsive to a voltage compensation duration signal that is based on the operating temperature of the apparatus. The voltage compensation occurs when there is no activate command immediately before or immediately after so that compensation duration change do not happen during an activate command from the command decoder. ## Claims ### Claim 1 An apparatus, comprising: a temperature sensor control circuit configured to measure an operating temperature of at least a portion of the apparatus and provide a digital output; and a threshold voltage compensation control circuit coupled to the temperature sensor control circuit, the threshold voltage compensation control circuit configured to receive the digital output from the temperature sensor control circuit and adjust a sense amplifier threshold voltage compensation based at least in part on the received digital output, the sense amplifier threshold voltage compensation occurs prior to word line activation. ### Claim 2 (depends on 1) The apparatus of claim 1, further comprising: a sense amplifier configured to perform the threshold voltage compensation; and a sense amplifier control circuit coupled to the threshold voltage compensation control circuit and coupled to the sense amplifier, the sense amplifier control circuit configured to provide a signal to the sense amplifier indicating a duration of the sense amplifier threshold voltage compensation. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the digital output comprises a plurality of bits indicating a corresponding plurality of temperature ranges. ### Claim 4 (depends on 1) The apparatus of claim 1, wherein the threshold voltage compensation control circuit comprises a switch configured to couple a plurality of inputs to a plurality of outputs, each input of the plurality of inputs associated with a compensation code and each output of the plurality of outputs associated with a temperature selectable compensation code. ### Claim 5 (depends on 4) The apparatus of claim 4, wherein the compensation code represents a sense amplifier threshold voltage compensation duration. ### Claim 6 An apparatus, comprising: a temperature sensor control circuit configured to measure an operating temperature of at least a portion of the apparatus and provide a digital output; and a threshold voltage compensation control circuit coupled to the temperature sensor control circuit, the threshold voltage compensation control circuit configured to receive the digital output from the temperature sensor control circuit and adjust a sense amplifier threshold voltage compensation based at least in part on the received digital output, wherein the threshold voltage compensation control circuit is configured to provide a signal to a sense amplifier control circuit indicating a duration of the sense amplifier threshold voltage compensation. ### Claim 7 (depends on 6) The apparatus of claim 6, wherein the signal indicating the duration of the sense amplifier threshold voltage compensation comprises one or more bits representing one or more durations for the sense amplifier threshold voltage compensation. ### Claim 8 (depends on 6) The apparatus of claim 6, wherein the threshold voltage compensation control circuit is configured to provide the signal indicating the duration of the sense amplifier threshold voltage compensation before or after an active command. ### Claim 9 (depends on 6) The apparatus of claim 6, wherein the duration increases as the operating temperature increases. ### Claim 10 A method, comprising: measuring an operating temperature of at least a portion of a semiconductor device; and adjusting a duration of threshold voltage compensation based at least in part on a digital output, the digital output based at least in part on the measured operating temperature, wherein the duration of threshold voltage compensation occurs prior to word line activation. ### Claim 11 (depends on 10) The method of claim 10, further comprising: providing a signal to a sense amplifier indicating the duration of the threshold voltage compensation. ### Claim 12 (depends on 10) The method of claim 10, wherein the digital output comprises a plurality of bits indicating a corresponding plurality of temperature ranges. ### Claim 13 (depends on 10) The method of claim 10, further comprising coupling a plurality of inputs to a plurality of outputs, each input of the plurality of inputs associated with a compensation code and each output of the plurality of outputs associated with a temperature selectable compensation code. ### Claim 14 (depends on 13) The method of claim 13, wherein the compensation code represents a threshold voltage compensation duration. ### Claim 15 A method, comprising: measuring an operating temperature of at least a portion of a semiconductor device; and adjusting a duration of threshold voltage compensation based at least in part on a digital output, the digital output based at least in part on the measured operating temperature, wherein adjusting the threshold voltage compensation comprises providing a signal to a sense amplifier control circuit indicating the duration of the threshold voltage compensation. ### Claim 16 (depends on 15) The method of claim 15, wherein the signal indicating the duration of the threshold voltage compensation comprises one or more bits representing one or more durations for the threshold voltage compensation. ### Claim 17 (depends on 15) The method of claim 15, further comprising providing the signal indicating the duration of the threshold voltage compensation before or after an active command. ### Claim 18 (depends on 15) The method of claim 15, wherein the duration increases as the operating temperature increases. ### Claim 19 An apparatus, comprising: a temperature sensor control circuit configured to determine a temperature and provide a first signal based at least in part on the temperature; a threshold voltage compensation control circuit coupled to the temperature sensor control circuit, the threshold voltage compensation control circuit configured to receive the first signal and provide a second signal indicating a duration of threshold voltage compensation; and a sense amplifier control circuit coupled to the threshold voltage compensation control circuit configured to receive the second signal and adjust a threshold voltage compensation based at least in part on the second signal. ### Claim 20 (depends on 19) The apparatus of claim 19, wherein the sense amplifier control circuit is configured to control a duration of the threshold voltage compensation based on the second signal.