Tunable CMOS temperature sensor
    3.
    发明授权

    公开(公告)号:US11747212B2

    公开(公告)日:2023-09-05

    申请号:US15902503

    申请日:2018-02-22

    Inventor: Munir A. Al-Absi

    CPC classification number: G01K7/01 G01K7/015 H01L27/088

    Abstract: The present disclosure relates to a compact temperature sensor displaying a temperature-resistance relationship. The temperature sensor comprises cross-coupled CMOS technology exhibits negative resistance, resulting in resistance-sensitive temperature sensing and amplification. The temperature sensor can be tuned to operate across a wide range of temperatures via modulation of a biasing current. The present disclosure further relates to subthreshold operation of CMOS technology.

    SEMICONDUCTOR APPARATUS, TEMPERATURE COMPENSATION SYSTEM, AND ALARM SYSTEM

    公开(公告)号:US20230163000A1

    公开(公告)日:2023-05-25

    申请号:US17916894

    申请日:2021-04-15

    CPC classification number: H01L21/67248 G01K7/015 G01K7/16

    Abstract: An object of the present invention is to provide a semiconductor apparatus capable of recognizing the actual temperature for each semiconductor chip even while driving the device.
    A semiconductor apparatus of the present disclosure includes a semiconductor chip, a plurality of pad electrodes formed in the semiconductor chip, and an impedance element electrically connected between at least two pad electrodes of the plurality of pad electrodes. Then, the semiconductor apparatus is configured to be capable of measuring a temperature of the semiconductor chip by applying a certain electrical signal between the at least two pad electrodes connected with the impedance element from outside of the semiconductor chip.

    Temperature sensor with layered architecture

    公开(公告)号:US09810584B2

    公开(公告)日:2017-11-07

    申请号:US14763613

    申请日:2014-02-10

    CPC classification number: G01K7/01 G01K7/015 G05F3/30

    Abstract: A temperature sensor includes two branches, each branch having at least a first transistor and a second transistor connected as diodes and cascaded, so that an emitter of the first transistor is connected to a collector of the second transistor of the same branch. The temperature source also includes a current source configured to provide a current to the two branches, and an analog-to-digital convertor. The analog-to-digital convertor is connected to capture a voltage between emitters of the first transistors or of the second transistors, and is configured to convert said voltage to a digital temperature signal.

    Temperature sensor calibration
    8.
    发明授权

    公开(公告)号:US09804036B2

    公开(公告)日:2017-10-31

    申请号:US14308983

    申请日:2014-06-19

    Inventor: Fan Yung Ma

    CPC classification number: G01K15/005 G01K7/015

    Abstract: Representative implementations of devices and techniques provide calibration for a chip-based temperature sensor. Two or more measurements are taken using a high resolution temperature sensor digitizer, and used to determine a calibration for the temperature sensor, based on a reference temperature value calculated from the measurements.

    ON-DIE TEMPERATURE SENSOR FOR INTEGRATED CIRCUIT

    公开(公告)号:US20170227409A1

    公开(公告)日:2017-08-10

    申请号:US15041022

    申请日:2016-02-10

    Inventor: SANJAY K. WADHWA

    CPC classification number: G01K7/015 G01K13/00 G01K2219/00 G05F3/267

    Abstract: An on-die temperature sensor measures temperature during a temperature-measurement session. A PTAT (proportional-to-absolute-temperature) generator generates an analog PTAT voltage that is dependent on temperature. A ramp generator generates a changing, analog ramp voltage whose rate of change is dependent on the PTAT voltage, such that the rate of change of the ramp voltage is dependent on the temperature. A comparator compares the ramp voltage to a reference voltage to detect termination of the temperature-measurement session. A counter generates a count value based on the duration of the temperature-measurement session, where the count value is mapped to the measured temperature using a lookup table. The PTAT generator has (i) two npn-type bipolar devices that generate a base-to-emitter voltage difference that is dependent on temperature and function as an amplifier input stage and (ii) circuitry to generate base currents for the bipolar devices to avoid current loading at the PTAT output.

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