Silicon-Controlled Rectifier for Electrostatic Discharge Protection Solutions With Minimal Snapback and Reduced Overshoot Voltage

    Authors

    R. C. Sun; Z. X. Wang; M. Klebanov; W. Liang; J. J. Liou;D. G. Liu

    Comments

    Authors: contact us about adding a copy of your work at [email protected]

    Abbreviated Journal Title

    IEEE Electron Device Lett.

    Keywords

    ESD; direct-connected; SCR; stacking; overshoot; SCR-BASED DEVICES; ESD PROTECTION; TECHNOLOGIES; DESIGN; SPEED; Engineering, Electrical & Electronic

    Abstract

    An electrostatic discharge (ESD) protection structure constructed by the stacking of multiple anode gate-cathode gate directly connected silicon-controlled rectifiers (DCSCRs), fabricated in a 0.18-mu m CMOS technology is reported in this letter. Two embedded diodes in the DCSCR dictate the turn-ON mechanism and hence give rise to a trigger voltage equal to twice the diode's turn-ON voltage. This approach enables the DCSCR to offer a diode-like transmission line pulsing IV characteristic with a minimal snapback and a SCR-like high-ESD robustness. At 25 degrees C, DCSCR has an acceptable nanoampere-level leakage current. Besides, it is verified that the DCSCR can significantly reduce overshoot voltage when stressed by very-fast-rising pulses. As such, an ESD clamp constructed by stacking a selected number of DCSCRs can offer a flexible trigger/holding voltage and is suitable for low and medium voltage ESD protection applications.

    Journal Title

    Ieee Electron Device Letters

    Volume

    36

    Issue/Number

    5

    Publication Date

    1-1-2015

    Document Type

    Article

    Language

    English

    First Page

    424

    Last Page

    426

    WOS Identifier

    WOS:000353566300001

    ISSN

    0741-3106

    Share

    COinS
     

    Accessibility Statement

    This item was created or digitized prior to April 24, 2027, or is a reproduction of legacy media created before that date. It is preserved in its original, unmodified state specifically for research, reference, or historical recordkeeping. In accordance with the ADA Title II Final Rule, the University Libraries provides accessible versions of archival materials upon request. To request an accommodation for this item, please submit an accessibility request form.