| 摘要 |
PROBLEM TO BE SOLVED: To reduce influence caused by dispersion in products, and to increase a variation (sensitivity) of a voltage with respect to a temperature, even in production by a CMOS semiconductor production process. SOLUTION: This temperature detecting circuit is provided, on a substrate, with a plurality of transistors 101, 102 with respective commutators connected in series, using the substrate as a collector, and using bases of the respective transistors and emitters thereof as the commutators, constant current sources 103, 104 for supplying constant currents to the respective emitters of the respective transistors, and output terminals 105, 106 for outputting voltages between those of the emitter in the initial stage transistor 101 and the base of the final stage transistor 102, in order to detect the temperature of the substrate manufactured by a semiconductor production process. COPYRIGHT: (C)2004,JPO |
