Semiconductor device and data generation method

A technology for semiconductors and devices, applied in the field of semiconductor devices and data generation, can solve the problems of reducing the accuracy of temperature detection, and achieve the effect of improving the accuracy of temperature detection and suppressing the number of
CN102735360AActive Publication Date: 2012-10-17RENESAS ELECTRONICS CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
RENESAS ELECTRONICS CORP
Publication Date
2012-10-17

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Abstract

The invention provides a semiconductor device and a data generation method. Improvement in the accuracy of a temperature sensor is aimed at, suppressing the number of the test temperature in a test process. The semiconductor device comprises a coefficient calculation unit which calculates up to the N-th order coefficient (N is an integer equal to or greater than one) of a correction function as an N-th order approximation of a characteristic function indicating correspondence relation of temperature data measured by a temperature sensor unit and temperature, based on N+1 pieces of the temperature data including a theoretical value at a predetermined temperature in the characteristic function and N measured values of the temperature data measured by the temperature sensor unit at N points of temperature; and a correction operation unit which generates data including information on temperature, by performing calculation using the correction function to which the coefficients calculated are applied, based on temperature data measured by the temperature sensor unit.
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Description

[0001] Cross References to Related Applications

[0002] The disclosure of Japanese Patent Application No. 2011-089080 filed on Apr. 13, 2011 including specification, drawings and abstract is hereby incorporated by reference in its entirety. technical field

[0003] The present invention relates to a semiconductor device provided with a temperature sensor and a data generation method for the semiconductor device, and particularly relates to a technique that is effective when applied to a semiconductor device requiring highly accurate temperature detection. Background technique

[0004] In recent years, there has been an increasing demand for microcomputers operating at relatively high temperatures for vehicle engine control. Along with this demand, there is also a high demand for mounting temperature sensors in microcomputers. Since vehicle engines operate at very high temperatures, the installed temperature sensors are especially required to perform high-precision temperat...

Claims

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