Two-stage hot-carrier-induced degradation of p-type LDMOS transistors

Jone F. Chen, Tzu Hsiang Chen, Deng Ren Ai

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Hot-carrier-induced device degradation of high-voltage p-type lateral diffused metal-oxide semiconductor (LDMOS) transistors is investigated. A two-stage linear region drain current (IDlin) shift (IDlin shift increases rapidly at the beginning of stress but tends to saturate when the stress time is longer) is observed. Technology computer-aided-design simulations and direct current current-voltage measurement results suggest that the decrease of residual fabrication interface traps (NIT) leads to an initial increase in IDlin shift. On the other hand, two competing mechanisms, i.e. increase in NIT generation and increase in electron trapping, are responsible for the saturated IDlin shift when the stress time is longer.

Original languageEnglish
Pages (from-to)1751-1753
Number of pages3
JournalElectronics Letters
Issue number23
Publication statusPublished - 2014 Nov 6

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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