Patent · US Active

Semiconductor temperature sensors

US8967856B2 · kind B2 · utility

2Cited by

4References

12Claims

0Family size

Assignee

Nordic Semiconductor ASA · NO

Inventors

Ola Bruset · Trondheim, NO
Stein Erik Weberg · Trondheim, NO
Per-Carsten Skoglund · Melhus, NO
Werner Luzi · Trondheim, NO

Key dates

Filing date	Feb 7, 2012
Grant date	Mar 3, 2015
Priority date	—
Expiry date	Feb 7, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01K7/32
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A temperature sensing device for an integrated circuit comprises an oscillator (2) having a characteristic frequency dependent on the temperature and a digital counter (16) arranged to count a number of pulses generated by the oscillator (2) in a given time interval, or the time taken for the oscillator to generate a given number of pulses. Either of these gives a measured value. The device is configured to use a difference between the measured value and a stored reference value in a linearisation algorithm to estimate a temperature.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.