发明名称 |
TEMPERATURE SENSOR CIRCUIT AND SEMICONDUCTOR DEVICE INCLUDING TEMPERATURE SENSOR CIRCUIT |
摘要 |
To provide a highly accurate temperature sensor circuit. The temperature sensor circuit includes a first constant current circuit; a first diode in which a first voltage reflecting the temperature of an object to be detected is generated between an anode and a cathode in accordance with a first current supplied from the first constant current circuit; a second constant current circuit; a second diode which includes an oxide semiconductor and in which a second voltage is generated between an anode and a cathode in accordance with a second current supplied from the second constant current circuit; and an amplifier circuit which amplifies a difference between the first voltage and the second voltage. |
申请公布号 |
US2013294481(A1) |
申请公布日期 |
2013.11.07 |
申请号 |
US201313873550 |
申请日期 |
2013.04.30 |
申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO., LTD.;SEMICONDUCTOR ENERGY LABORATORY CO/. LTD. |
发明人 |
KOYAMA JUN;YAMAZAKI SHUNPEI |
分类号 |
G01K7/01 |
主分类号 |
G01K7/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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