High-voltage ESD protection device with small hysteresis window
A technology for ESD protection and devices, which is applied in the direction of electric solid devices, semiconductor devices, electrical components, etc., to achieve the effects of reduced on-resistance, fast turn-on speed, and strong current discharge capability
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[0026] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:
[0027] The present invention proposes a high-voltage ESD protection device with a small hysteresis window. Due to the special design of its internal structure and reasonable control of key characteristic parameters, the device in the embodiment of the present invention has an SCR structure ESD protection device with fast opening speed and conductivity. It has the advantages of small on-resistance and large secondary breakdown current; it also reduces the emissivity of the parasitic PNP tube to increase the maintenance voltage. The breakdown characteristic of the Zener diode is also introduced to reduce the trigger voltage of the device and realize high-performance ESD protection with a small hysteresis window. It is beneficial to expand the application range of the device of the embodiment of the present invention through the stacking technology.
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