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The reliability of SiGe HBT under swift heavy ion irradiation

  • Yabin Sun
  • , Jun Fu
  • , Jun Xu
  • , Yudong Wang
  • , Wei Zhou
  • , Wei Zhang
  • , Jie Cui
  • , Gaoqing Li
  • , Zhihong Liu
  • Tsinghua University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Silicon-germanium (SiGe) heterojunction bipolar transistors (HBTs) were irradiated by 25Mev Si4+ ion with equivalent absorbed dose from 300 krad(Si) to 10 Mrad(Si). Pre- and post-irradiation direct current (DC) characteristics were used to quantify the dose tolerance to the heavy ion irradiation. Base current was found more sensitive than collector current and current gain appeared to decline with the ion fluence increasing. An unexpected increase in emitter current was observed in the reversed-mode operation. The reverse leakage current of base-collector and base-emitter junction increased with the increase in ion fluence. The displacement damages were thought to be mainly contributed to performance degradation of SiGe HBT.

Original languageEnglish
Title of host publication2013 IEEE International Conference of Electron Devices and Solid-State Circuits, EDSSC 2013
DOIs
StatePublished - 2013
Externally publishedYes
Event2013 IEEE International Conference of Electron Devices and Solid-State Circuits, EDSSC 2013 - Hong Kong, Hong Kong
Duration: 3 Jun 20135 Jun 2013

Publication series

Name2013 IEEE International Conference of Electron Devices and Solid-State Circuits, EDSSC 2013

Conference

Conference2013 IEEE International Conference of Electron Devices and Solid-State Circuits, EDSSC 2013
Country/TerritoryHong Kong
CityHong Kong
Period3/06/135/06/13

Keywords

  • Displacement damage
  • SiGe HBT
  • swift heavy ion

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