Abstract

We report the characterization of diode and bipolar triggered SCRs with VFTLP measurements and product ESD testing. A dual base Darlington bipolar triggered SCR (DbtSCR) in a triple well structure is demonstrated to provide 4 kV HBM, 300 V MM, and 1000 V CDM protection for 90 nm ASIC I/Os. A very fast turn-on time of 460 ps was measured for the DbtSCR, compared to 8 ns for a diode triggered SCR.

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