Electricity: measuring and testing – Magnetic – Magnetometers
Reexamination Certificate
2007-05-15
2010-12-21
LeDynh, Bot L (Department: 2858)
Electricity: measuring and testing
Magnetic
Magnetometers
C324S207200
Reexamination Certificate
active
07855554
ABSTRACT:
A semiconductor device includes: a detection Hall element for detecting a magnetic field; a temperature monitor Hall element; and a calculation circuit. The detection Hall element has a characteristic, which is almost a same as the temperature monitor Hall element. The detection Hall element is disposed near the temperature monitor Hall element. The detection Hall element outputs a Hall voltage. The temperature monitor Hall element includes a pair of driving signal supply terminals for outputting a temperature monitor voltage. The calculation circuit calculates to cancel a temperature characteristic of the Hall voltage based on the Hall voltage and the temperature monitor voltage.
REFERENCES:
patent: 5257210 (1993-10-01), Schneider et al.
patent: 5351003 (1994-09-01), Bauer et al.
patent: 5621320 (1997-04-01), Yokotani et al.
patent: 6177793 (2001-01-01), Shinjo et al.
patent: 6522131 (2003-02-01), Hiligsmann et al.
patent: 2003/0117254 (2003-06-01), Wan et al.
patent: 2005/0258820 (2005-11-01), Forster
patent: 2006/0170406 (2006-08-01), Kawashima et al.
patent: 44 34 318 (1996-03-01), None
patent: A-2-120680 (1990-05-01), None
patent: A-3-252578 (1991-11-01), None
patent: A-7-294561 (1995-11-01), None
patent: A-11-211411 (1999-08-01), None
patent: A-2000-046878 (2000-02-01), None
patent: A-2004-053505 (2004-02-01), None
Office Action dated Jan. 9, 2009 in corresponding Chinese patent application No. 2007101065499 (and English translation).
Office Action dated Feb. 17, 2009 in corresponding German patent application No. 10 2007 024 436.5-35 (and English translation).
Kazusuke Maenaka et al., “Integrated Three Dimensional Magnetic Sensors”, T. IEE; Japan, vol. 109-C, No. 7, pp. 483-490. [Partial translation].
Kazusuke Maenaka et al., “Characteristics of Vertical Hall Cells and Improvement of Their Sensitivity”, T. IEE; Japan, vol. 117-E, No. 7, pp. 364-770. [English abstract].
Denso Corporation
LeDynh Bot L
Posz Law Group , PLC
LandOfFree
Semiconductor device, magnetic sensor, and physical quantity... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Semiconductor device, magnetic sensor, and physical quantity..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor device, magnetic sensor, and physical quantity... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4226880