Semiconductor device and temperature detection method using the same

A technology of semiconductors and equipment, applied in the field of temperature detection, can solve the problems of output characteristic configuration and operation adjustment of temperature detection equipment, fluctuation of resistance temperature characteristics, etc., and achieve the effect of high small semiconductor device and high temperature detection sensitivity
CN1851249AInactive Publication Date: 2006-10-25FUJI ELECTRIC DEVICE TECH CO
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
FUJI ELECTRIC DEVICE TECH CO
Publication Date
2006-10-25
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

A semiconductor device 10 according to the present invention includes a temperature detection section 12 that performs temperature detection with a semiconductor device formed in a semiconductor substrate; a sensor output terminal T3; a current generating part 21 connected to the output terminal T3, which applies a driving current to the temperature detecting part 12; and a voltage measuring device 22 connected to the output terminal 22, when the driving current of a predetermined value is When the current generating part 21 is supplied to the temperature detecting part 12, the voltage measuring means 22 measures the voltage of the output terminal T3 to perform temperature detection. A semiconductor device according to the present invention has a structure that contributes to its size reduction. The semiconductor device according to the present invention contributes to its easy production at low production cost. The temperature detection method according to the invention contributes to very precise operation of the semiconductor device.
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Description

technical field

[0001] The present invention relates to a semiconductor device performing pressure detection and temperature detection mainly for controlling an engine of an automobile or a motorcycle. The invention also relates to a temperature detection method. Background technique

[0002] Detection of internal engine pressure and temperature for a car or motorcycle is essential for controlling the engine. Figure 14 is a cross-sectional view schematically showing a car engine facing as Figure 14 The basic behavior of the engine 40 shown in . First, air enters the cylinder 49 through the intake pipe 44 . Fuel is injected from fuel injection 46 and enters cylinders 49 of engine 40 together with air flowing through intake manifold 44 .

[0003] In cylinder 49, piston 50, valve 47, and spark plug 48 repeat a series of actions consisting of intake air, compression, combustion (ignition and expansion), and exhaust (exhaust gas) in synchronization with each other so that eng...

Claims

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