Semiconductor temperature sensor

Details Semiconductor temperature sensor Semiconductor temperature sensor

2011-03-08

2011-03-08

Caputo, Lisa M (Department: 2855)

Thermal measuring and testing

Temperature measurement

By electrical or magnetic heat sensor

C374S178000, C327S512000

Reexamination Certificate

active

07901134

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.

REFERENCES:
patent: 5585752 (1996-12-01), Botti et al.
patent: 6144246 (2000-11-01), Wachter
patent: 2002/0130709 (2002-09-01), Teel et al.
patent: 2004/0130378 (2004-07-01), Kihara
patent: 2007/0285153 (2007-12-01), Hasegawa
patent: 2010/0008398 (2010-01-01), Nojima
patent: 3128013 (2000-11-01), None

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