Presentation 2021-03-03
Measurement of Voltage-variation-tolerant Temperature Sensor for Standard CMOS Chip with On-chip Solar Cell
Shuto Murohara, Tatsuya Banno, Tomoya Kimura, Takashi Imagawa, Hiroyuki Ochi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Aiming at realizing a CMOS-process-compatible external-component-free SoC with an on-chip solar cell and a temperature sensor, this report proposes a temperature sensor that operates at about 0.5V supply voltage and presents its simulation and measurement results. The proposed temperature sensor estimates the temperature based on the ratio of the frequency variations of two oscillators, a reference ring oscillator, whose frequency varies linearly to temperature, and a temperature ring oscillator, whose frequency varies exponentially to temperature. Results of circuit simulations and actual measurements suggest that temperature estimation is possible.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) micro-energy harvesting / sensor device / ring oscillator / low-power low-supply-voltage circuit design
Paper # VLD2020-74,HWS2020-49
Date of Issue 2021-02-24 (VLD, HWS)

Conference Information
Committee HWS / VLD
Conference Date 2021/3/3(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English) Design Technology for System-on-Silicon, Hardware Security, etc.
Chair Makoto Ikeda(Univ. of Tokyo) / Daisuke Fukuda(Fujitsu Labs.)
Vice Chair Yasuhisa Shimazaki(Renesas Electronics) / Makoto Nagata(Kobe Univ.) / Kazutoshi Kobayashi(Kyoto Inst. of Tech.)
Secretary Yasuhisa Shimazaki(Kyushu Univ.) / Makoto Nagata(NTT) / Kazutoshi Kobayashi(Hitachi)
Assistant / Takuma Nishimoto(Hitachi)

Paper Information
Registration To Technical Committee on Hardware Security / Technical Committee on VLSI Design Technologies
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Measurement of Voltage-variation-tolerant Temperature Sensor for Standard CMOS Chip with On-chip Solar Cell
Sub Title (in English)
Keyword(1) micro-energy harvesting
Keyword(2) sensor device
Keyword(3) ring oscillator
Keyword(4) low-power low-supply-voltage circuit design
1st Author's Name Shuto Murohara
1st Author's Affiliation Ritsumeikan University(Ritsumeikan Univ.)
2nd Author's Name Tatsuya Banno
2nd Author's Affiliation Ritsumeikan University(Ritsumeikan Univ.)
3rd Author's Name Tomoya Kimura
3rd Author's Affiliation Ritsumeikan University(Ritsumeikan Univ.)
4th Author's Name Takashi Imagawa
4th Author's Affiliation Ritsumeikan University(Ritsumeikan Univ.)
5th Author's Name Hiroyuki Ochi
5th Author's Affiliation Ritsumeikan University(Ritsumeikan Univ.)
Date 2021-03-03
Paper # VLD2020-74,HWS2020-49
Volume (vol) vol.120
Number (no) VLD-400,HWS-401
Page pp.pp.32-37(VLD), pp.32-37(HWS),
#Pages 6
Date of Issue 2021-02-24 (VLD, HWS)