On the improved performance of thermoelectric generators with low dimensional polysilicon-germanium thermocouples by BiCMOS process

S. M. Yang, J. Y. Wang, M. D. Chen

Research output: Contribution to journalArticle

Abstract

Standard complementary-metal-oxide semi-conductor (CMOS) process for the advantages in batch production, low cost, and mostly importantly, scalability has been applied to thermoelectric generator (TEG) designs, where silicon materials are preferable for monolithic circuit integration. In this work, the BiCMOS process is found to be a perfect platform for TEG designs to achieve higher performance by the polysilicon-germanium thin film layer. Simulations of the TEG designs by 0.35 μm SiGe 3P3M and 0.18 μm SiGe 3P6M BiCMOS processes (TSMC) show that the power factors are respectively 0.242 and 0.125 μW/cm2 K2, and the voltage factors are 10.04 and 25.91 V/cm2 K. Both are shown to be superior to all micro TEGs by semiconductor process in the open literature. Experimental verifications confirm the simulation results and validate the effectiveness of TEG designs by the polysilicon-germanium thin film layer in BiCMOS process.

Original languageEnglish
Article number111924
JournalSensors and Actuators, A: Physical
Volume306
DOIs
Publication statusPublished - 2020 May 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering

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