UIS analysis and characterization of the SONOS gate power MOSFET

Xianda Zhou*, Jacky C.W. Ng, Johnny K.O. Sin

*Corresponding author for this work

Research output: Contribution to journalJournal Articlepeer-review

3 Citations (Scopus)

Abstract

In this paper, unclamped inductive switching (UIS) performance of the novel silicon-oxide-nitride-oxide-silicon (SONOS) gate power MOSFET (SG-MOSFET) is analyzed. The avalanche energy absorption of the SG-MOSFET at UIS is 5.2 times that of the conventional power MOSFET. Analysis shows that the improvement is due to the heavily doped p-body used in the device. Moreover, the influence of the structural parameters on the UIS performance of the device is experimentally characterized. Measurement results show that the UIS performance is not sensitive to the p + contact width and slightly degrades with a larger gate length. Furthermore, the results show that it is promising to further improve the UIS performance of the device by using a more efficient charge trapping material in the gate dielectric to allow further increase in the p-body doping concentration.

Original languageEnglish
Article number6088006
Pages (from-to)408-413
Number of pages6
JournalIEEE Transactions on Electron Devices
Volume59
Issue number2
DOIs
Publication statusPublished - Feb 2012

Keywords

  • Avalanche energy
  • power MOSFET
  • silicon-oxide-nitride-oxide-silicon (SONOS)
  • unclamped inductive switching (UIS)

Fingerprint

Dive into the research topics of 'UIS analysis and characterization of the SONOS gate power MOSFET'. Together they form a unique fingerprint.

Cite this