Invention Grant
US07804372B2 Ring oscillator for temperature sensor, temperature sensor circuit, and semiconductor device having the same
有权
用于温度传感器的环形振荡器，温度传感器电路和具有该振荡器的半导体器件
- Patent Title: Ring oscillator for temperature sensor, temperature sensor circuit, and semiconductor device having the same
- Patent Title (中): 用于温度传感器的环形振荡器，温度传感器电路和具有该振荡器的半导体器件
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Application No.: US12314388Application Date: 2008-12-09
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Publication No.: US07804372B2Publication Date: 2010-09-28
- Inventor: Keigo Nakatani
- Applicant: Keigo Nakatani
- Applicant Address: JP Kawsaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawsaki
- Agency: Staas & Halsey LLP
- Main IPC: H03B5/24
- IPC: H03B5/24
Abstract:
A ring oscillator includes an odd number of unit circuits connected in series each of which includes an inverter. Each of the unit circuits includes the inverter and a MOSFET. The MOSFET is an FET which is a temperature sensor, and uses a drain-source leakage current in a state that the FET is normally turned off.
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