Semiconductor temperature sensor
US7901134B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 29, 2008 |
| Grant date | Mar 8, 2011 |
| Priority date | — |
| Expiry date | Sep 12, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K1/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided is a semiconductor temperature sensor having satisfactory linearity of an output voltage with respect to temperature. In a semiconductor temperature sensor (1), even if the temperature increases and a leakage current is generated at bases of a PNP (8) and a PNP (9), a current which flows into emitters of a PNP (7) and the PNP (8) is not affected by the leakage current by virtue of a leakage current compensation current of a PNP (14), and thus, the linearity of the output voltage with respect to the temperature is improved and the accuracy of the semiconductor temperature sensor (1) with respect to the temperature is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.