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| Number | Title | Issue Date |
| 8177426 | Sub-threshold CMOS temperature detector A CMOS temperature detection circuit includes a start-up circuit for generating a start-up voltage (VN), and a proportional to absolute temperature (PTAT) current generator coupled to the start-up circuit for generating a PTAT current. The start-up voltage turns on ... | 05/15/2012 |
| 8167485 | CMOS temperature-to-digital converter with digital correction Methods and systems for producing a digital temperature reading are provided. In an embodiment, one or more current sources and one or more switches are used to selectively provide a first amount of current (I1) and a second amount of current (I2) to t... | 05/01/2012 |
| 8152372 | Methods for monitoring chip temperature during test Described herein are methods and apparatuses for testing an integrated circuit chip including a thermal diode. According to various embodiments, a method for testing an integrated circuit chip including a thermal diode may comprise performing a test operation on the... | 04/10/2012 |
| 8096707 | Thermal sensor device A thermal sensor is provided that includes a front-end component, an analog-to-digital converter and a digital backend. The front-end component including an array of current sources, a dynamic element matching (DEM) device, an analog chopper and two diodes to sense ... | 01/17/2012 |
| 8092083 | Temperature sensor with digital bandgap A system comprises a temperature sensor generate multiple base-emitter voltage signals by sequentially providing various currents to a transistor, and a system controller to determine a differential voltage signal according to the multiple base-emitter voltage signa... | 01/10/2012 |
| 8075182 | Apparatus and method for measuring characteristic and chip temperature of LED An apparatus for measuring a characteristic and a chip temperature of an LED includes a thermal conductive component. An LED chip is disposed on the thermal conductive component. A temperature control unit is connected to the thermal conductive component for providi... | 12/13/2011 |
| 8070357 | Device and method for evaluating a temperature A device having temperature evaluating capabilities, the device includes: (i) a temperature sensitive delay line that comprises multiple first type NMOS transistors and first type PMOS transistors; (ii) an configurable delay line that comprises second type NMOS tran... | 12/06/2011 |
| 8057094 | Power semiconductor module with temperature measurement A power semiconductor module with temperature measurement is disclosed. One embodiment provides a conductor having a first end and a second end. The second end is thermally coupled at a substrate. A device including temperature sensor is thermally coupled at the fir... | 11/15/2011 |
| 8033720 | Temperature sensing circuit and semiconductor memory device using the same A temperature sensing circuit comprises a temperature sensing unit for generating a reference voltage having a constant level, regardless of a temperature fluctuation, and a variable voltage to be changed according to the temperature fluctuation, and a comparison un... | 10/11/2011 |
| 8033721 | Temperature sensor circuit A temperature sensor circuit is provided that facilitates preventing a too-high overshooting voltage from occurring at an output terminal when a power supply is connected to the temperature sensor circuit. The temperature sensor circuit includes a short-circuiting d... | 10/11/2011 |
| 8021042 | Beta variation cancellation in temperature sensors An apparatus and method for canceling variations in the beta for a bipolar junction transistor so that the diode equation can be employed to accurately measure the temperature of the transistor based at least in part on a ratio of two target collector currents and t... | 09/20/2011 |
| 8016482 | Method and systems of powering on integrated circuit Method and systems of powering on an integrated circuit (IC) are disclosed. In one embodiment, the system includes a region in the IC including functional logic, a temperature sensor for sensing a temperature in the region when the IC is powered up and a heating ele... | 09/13/2011 |
| 8007169 | Sensor A sensor, in particular a thermal sensor and/or gas sensor, encompassing an electrical sensor component having an electrical property whose value changes in temperature-dependent fashion, wherein the temperature-dependent electrical property is a resistance or an im... | 08/30/2011 |
| 7997794 | Temperature sensor circuit A temperature sensor circuit whose output voltage has high precision is provided. The temperature sensor circuit includes a Darlington circuit having bipolar transistors, a constant current circuit, and a current control circuit. Emitter currents of the bipolar tran... | 08/16/2011 |
| 7980759 | Temperature sensing circuit for low voltage operation The present invention discloses a temperature sensing circuit which is adaptive toward low voltage IC environment, it mainly comprises: a temperature sensing unit, a temperature threshold control unit and a transconductance amplifier. The temperature sensing unit in... | 07/19/2011 |
| 7952368 | Apparatus and method for measuring diode chip An apparatus and a method for measuring a diode chip are provided. The diode chip is placed on a thermal conductive element. The apparatus measures an instant starting current and a first temperature, which is associated with the instant starting current, of the the... | 05/31/2011 |
| 7922389 | Substrate based on temperature sensing A method for providing accurate temperature sensing of a substrate utilizing the PN junction of a transistor formed on the substrate is described. ... | 04/12/2011 |
| 7914205 | Precision temperature sensor A temperature sensor circuit in accordance with an embodiment of the present invention includes a temperature sensing element operable to provide a temperature voltage that is linearly related to the absolute temperature of the circuit. The temperature sensing eleme... | 03/29/2011 |
| 7905657 | Temperature sensor A temperature sensor that can be used in semiconductor devices includes a reference voltage generator for dividing a power supply voltage and outputting a reference voltage, a compare voltage generator for outputting compare voltages with different levels depending ... | 03/15/2011 |
| 7896545 | Apparatus and methods for temperature calibration and sensing Some embodiments include apparatus and methods having a first switch, a second switch, and a circuit coupled to the first and second switches. The first switch may be configured to switch between an on-state and an off-state based on a value of a first current flowi... | 03/01/2011 |
| 7891869 | Temperature sensor circuit and calibration method thereof A temperature sensor circuit comprises a first monitor voltage generation circuit that generates a first monitor voltage with a characteristic that changes with respect to temperature; a second monitor voltage generation circuit that generates a second monitor volta... | 02/22/2011 |
| 7887235 | Multiple sensor thermal management for electronic devices A device includes a current source circuit to separately provide a first current and a second current and a thermal detection device coupleable to the output of the current source circuit. The device further includes a voltage detection circuit to provide a first in... | 02/15/2011 |
| 7862233 | Self heating monitor for SiGe and SOI CMOS devices A structure, apparatus and method for deterring the temperature of an active region in semiconductor, particularly a FET is provided. A pair FETs are arranged on a silicon island a prescribed distance from one another where the silicon island is surrounded by a ther... | 01/04/2011 |
| 7857510 | Temperature sensing circuit A temperature sensor, in accordance with the principles of the invention comprises a silicon substrate. The silicon substrate includes a bandgap, an offset circuit for providing calibration offsets, and a gain block for providing an output that varies substantially ... | 12/28/2010 |
| 7841770 | Temperature measuring system and measuring method using the same A temperature measuring system and a measuring method using the same are disclosed. The method for measuring an integrated circuit temperature includes the steps of: detecting a first difference in output voltage values between a first transistor and a second transi... | 11/30/2010 |
| 7837384 | Process-invariant low-quiescent temperature detection circuit In one embodiment, an integrated circuit is provided for detecting when a temperature reaches a specified value. The circuit includes a differential circuit block having first and second transistors. A control terminal of the first transistor is coupled to a first v... | 11/23/2010 |
| 7828479 | Three-terminal dual-diode system for fully differential remote temperature sensors A three-terminal, dual-diode system is compatible with both fully differential remote and single-ended remote temperature measurement systems. Fully differential remote temperature sensor systems offer better noise immunity and can perform faster conversions with le... | 11/09/2010 |
| 7798707 | Systems and methods for determining device temperature Circuitry for measuring and/or monitoring device temperature may include a first node coupled to ground, and a second node and a first resistor coupled in series to ground and in parallel to the first node. A first current driven to the first node and a second curre... | 09/21/2010 |
| 7789558 | Thermal sensing circuit using bandgap voltage reference generators without trimming circuitry Methods, systems and thermal sensing apparatus are provided that use bandgap voltage reference generators that do not use trimming circuitry. Further, circuits, systems, and methods in accordance with the present invention are provided that do not use large amounts ... | 09/07/2010 |
| 7780346 | Methods and apparatus for a fully isolated NPN based temperature detector Methods and apparatus for a fully isolated NPN-based temperature detector are disclosed. A disclosed method to determine the temperature of a circuit comprises generating a first current that increases as temperature increases, generating a second current that decre... | 08/24/2010 |
| 7780347 | On chip temperature measuring and monitoring circuit and method A device temperature measurement circuit, an integrated circuit (IC) including a device temperature measurement circuit, a method of characterizing device temperature and a method of monitoring temperature. The circuit includes a constant current source and a clampi... | 08/24/2010 |
| 7766546 | Beta variation cancellation in temperature sensors An apparatus and method for canceling variations in the beta for a bipolar junction transistor so that the diode equation can be employed to accurately measure the temperature of the transistor based at least in part on a ratio of two target collector currents and t... | 08/03/2010 |
| 7762721 | On chip temperature measuring and monitoring method A device temperature measurement circuit, an integrated circuit (IC) including a device temperature measurement circuit, a method of characterizing device temperature and a method of monitoring temperature. The circuit includes a constant current source and a clampi... | 07/27/2010 |
| 7758240 | PN-junction temperature sensing apparatus A PN-junction temperature sensing apparatus for applying input signals to a semiconductor device and measuring temperature-dependent output signals has an odd number of current sources (1, 2, n) switches (5, 6, 7) with selectable outputs to connect the... | 07/20/2010 |
| 7695189 | System to calibrate on-die temperature sensor A system may include biasing of diodes of a temperature sensor disposed in an integrated circuit die using a current from an off-die current source, generation of a voltage based on the current and a temperature of the integrated circuit die, and determination of a ... | 04/13/2010 |
| 7686508 | CMOS temperature-to-digital converter with digital correction Methods and systems for producing a digital temperature reading are provided. In an embodiment, one or more current sources and one or more switches are used to selectively provide a first amount of current (I1) and a second amount of current (I2) to t... | 03/30/2010 |
| 7661879 | Apparatus for detecting temperature using transistors An apparatus for detecting a temperature using transistors includes a plurality of temperature detecting units that become selectively active according to predetermined temperature intervals; and a detection signal output unit that generates detection signals accord... | 02/16/2010 |
| 7651268 | Method and testing equipment for LEDs and laser diodes The present invention is a non-invasive method and associated apparatus for determining the junction temperature for an LED or laser diode (collectively “LED”). First a sample LED is placed in a heat chamber and the change of the LED's peak wavelength is recorde... | 01/26/2010 |
| 7648270 | Temperature measurement of an integrated circuit In one embodiment, an integrated circuit (IC) is provided with a thermal diode and a constant current source. In this embodiment, the saturation current of the diode may be determined by means external to the IC. During normal operation of the IC, the constant curre... | 01/19/2010 |
| 7648271 | Systems and methods for temperature measurement using n-factor coefficient correction Various systems and methods for temperature measurement are disclosed. For example, some embodiments of the present invention provide temperature measurement systems. Such temperature measurement systems include a variable current source and a diode connected transi... | 01/19/2010 |
