Preliminary thermal characterization of a fully-passive wireless backscattering neuro-recording microsystem

H. N. Schwerdt, W. Xu, S. Shekhar, F. A. Miranda, Junseok Chae

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We present analytical and experimental thermal characteristics of a battery-less, fully-passive wireless backscattering microsystem for recording of neuropotentials. A major challenge for cortically implantable microsystems involves minimizing the heat dissipated by on-chip circuitry, which can lead to permanent brain damage. Therefore, knowledge of temperature changes induced by implantable microsystems while in operation is of utmost importance. In this work, a discrete diode appended to the neuro-recording microsystem has been used to indirectly monitor the aforesaid temperature changes. Using this technique, the maximum temperature rise measured for the microsystem while in operation was 0.15 ± 0.1°C, which is significantly less than current safety guidelines. Specific absorption ratio (SAR) due to the microsystem was also computed to further demonstrate fully-passive functionality of the neuro-recording microsystem.

Original languageEnglish (US)
Title of host publication2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11
Pages1228-1231
Number of pages4
DOIs
StatePublished - 2011
Event2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11 - Beijing, China
Duration: Jun 5 2011Jun 9 2011

Other

Other2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11
CountryChina
CityBeijing
Period6/5/116/9/11

Fingerprint

Microsystems
Backscattering
Hot Temperature
Temperature
Brain
Diodes

Keywords

  • backscattering
  • battery-less
  • microsystem
  • neuro-recording
  • neuropotentials
  • wireless

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

Cite this

Schwerdt, H. N., Xu, W., Shekhar, S., Miranda, F. A., & Chae, J. (2011). Preliminary thermal characterization of a fully-passive wireless backscattering neuro-recording microsystem. In 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11 (pp. 1228-1231). [5969400] https://doi.org/10.1109/TRANSDUCERS.2011.5969400

Preliminary thermal characterization of a fully-passive wireless backscattering neuro-recording microsystem. / Schwerdt, H. N.; Xu, W.; Shekhar, S.; Miranda, F. A.; Chae, Junseok.

2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11. 2011. p. 1228-1231 5969400.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Schwerdt, HN, Xu, W, Shekhar, S, Miranda, FA & Chae, J 2011, Preliminary thermal characterization of a fully-passive wireless backscattering neuro-recording microsystem. in 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11., 5969400, pp. 1228-1231, 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11, Beijing, China, 6/5/11. https://doi.org/10.1109/TRANSDUCERS.2011.5969400
Schwerdt HN, Xu W, Shekhar S, Miranda FA, Chae J. Preliminary thermal characterization of a fully-passive wireless backscattering neuro-recording microsystem. In 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11. 2011. p. 1228-1231. 5969400 https://doi.org/10.1109/TRANSDUCERS.2011.5969400
Schwerdt, H. N. ; Xu, W. ; Shekhar, S. ; Miranda, F. A. ; Chae, Junseok. / Preliminary thermal characterization of a fully-passive wireless backscattering neuro-recording microsystem. 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11. 2011. pp. 1228-1231
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