Silicon Controlled Rectifier Based Partially Depleted Soi Esd Protection Device For High Voltage Application
IEICE TRANSACTIONS ON ELECTRONICS(2020)
Abstract
In partially depleted SOI (PD-SOI) technology, the SCR-based protection device is desired due to its relatively high robustness, but be restricted to use because of its inherent low holding voltage (V-h) and high triggering voltage (V-t1). In this paper, the body-tie side triggering diode inserting silicon controlled rectifier (BSTDISCR) is proposed and verified in 180 nm PD-SOI technology. Compared to the other devices in the same process and other related works, the BSTDISCR presents as a robust and latchup-immune PD-SOI ESD protection device, with appropriate V-t1 of 6.3 V, high V-h of 4.2 V, high normalized second breakdown current (I-t2), which indicates the ESD protection robustness, of 13.3 mA/mu m, low normalized parasitic capacitance of 0.74 f F/mu m.
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Key words
electrostatic discharge (ESD), silicon on insulator (SOI), high voltage protection, body-tie side triggering diode inserting silicon controlled rectifier (BSTDISCR)
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