Semiconductor integrated circuit

Details Semiconductor integrated circuit Semiconductor integrated circuit

2009-04-20

2010-11-30

Bhat, Aditya (Department: 2863)

Data processing: measuring, calibrating, or testing

Testing system

Of circuit

Reexamination Certificate

active

07844411

ABSTRACT:
A temperature detector sets the level of a temperature detecting signal to a level indicating a high temperature state, detecting that the chip temperature is higher than a first boundary temperature. The temperature detector sets the level of thereof to a level indicating a low temperature state, detecting that the chip temperature is lower than a second boundary temperature. A control circuit changes its operating state according to the level of the temperature detecting signal. This prevents the operating state of the control circuit from frequently switched even when the chip temperature fluctuates around the boundary temperatures, and accordingly reduces current consumption of the control circuit due to the switching operation. Further, the first and second boundary temperatures set a buffer zone, so that the temperature detector does not detect power supply noises as temperature variation. This can prevent malfunction of the temperature detector and the semiconductor integrated circuit.

REFERENCES:
patent: 4730228 (1988-03-01), Einzinger et al.
patent: 5278796 (1994-01-01), Tillinghast et al.
patent: 5600281 (1997-02-01), Mori et al.
patent: 5875142 (1999-02-01), Chevallier
patent: 6134167 (2000-10-01), Atkinson
patent: 6134667 (2000-10-01), Suzuki et al.
patent: 6489831 (2002-12-01), Matranga et al.
patent: 6667925 (2003-12-01), Kobayashi et al.
patent: 6921199 (2005-07-01), Aota et al.
patent: 7196956 (2007-03-01), Shirota et al.
patent: 7493531 (2009-02-01), Ito et al.
patent: 2003/0123520 (2003-07-01), Tesi
patent: 2005/0063234 (2005-03-01), Sinha et al.
patent: 3-207084 (1991-09-01), None
patent: 5-266658 (1993-10-01), None
patent: 7-73668 (1995-03-01), None
patent: 2001-332082 (2001-11-01), None

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