Dummy-Gate Structure to Improve Turn-on Speed of Silicon-Controlled Rectifier (SCR) Device for Effective Electrostatic Discharge (ESD) Protection

Ming-Dou Ker*, Kuo Chun Hsu

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Turn-on speed is the main concern for on-chip electrostatic discharge (ESD) protection device, especially in deep submicron complementary metal-oxide semiconductors (CMOS) processes with ultra-thin gate oxide. A novel dummy-gate-blocking silicon-controlled rectifier (SCR) device with substrate-triggered technique is proposed to improve the turn-on speed of SCR device for using in on-chip ESD protection circuit to effectively protect the much thinner gate oxide. From the experimental results, the switching voltage, turn-on resistance, and turn-on time of substrate-triggered SCR (STSCR) device with dummy-gate structure have been efficiently improved, as compared with the normal SCR with shallow trench isolation (STI) structure.

    Original languageEnglish
    Pages (from-to)L1366-L1368
    JournalJapanese Journal of Applied Physics, Part 2: Letters
    Volume42
    Issue number11 B
    DOIs
    StatePublished - 15 Nov 2003

    Keywords

    • Dummy gate
    • Electrostatic discharge (ESD)
    • ESD protection
    • Silicon controlled rectifier (SCR)
    • Substrate-triggered technique

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