π-SCR Device for Broadband ESD Protection in Low-Voltage CMOS Technology

Chun Yu Lin, Yu Hsuan Lai

Research output: Contribution to journalArticle

Abstract

Electrostatic discharge (ESD) protection design is needed for integrated circuits; however, the ESD protection devices near the I/O pad may cause negative impacts on the high-frequency performance. To achieve both excellent ESD robustness and good broadband performance, a silicon-controlled rectifier (SCR) with trigger diodes, a matching inductor, and a reversed diode to form a novel π-SCR device is presented in this brief. As compared with the conventional π-diode in silicon, the π-SCR can reduce the clamping voltage during the critical positive-to-VSS (PS) ESD test, and the high-frequency performance is not seriously degraded (insertion loss < 2 dB within 0-20 GHz in this brief). In addition, the π-SCR device does not suffer the latch-up issue in low-voltage CMOS technology, and it has the potential to further reduce the clamping voltage during other ESD tests. Therefore, the novel π-SCR device will be a good choice for broadband ESD protection in low-voltage CMOS technology.

Original languageEnglish
Article number8764565
Pages (from-to)4107-4110
Number of pages4
JournalIEEE Transactions on Electron Devices
Volume66
Issue number9
DOIs
Publication statusPublished - 2019 Sep

Keywords

  • Broadband
  • electrostatic discharge (ESD)
  • silicon-controlled rectifier (SCR)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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