Electrostatic discharge protection device and method for producing an electrostatic discharge protection device

摘要

An electrostatic discharge protection device includes an anode, a cathode, a negative voltage holding transistor and a positive voltage holding transistor. The anode is coupled to an input terminal, and the cathode is coupled to a ground. The negative voltage holding transistor includes an N-well. The positive voltage holding transistor includes an N-well. The N-well of the positive voltage holding transistor and the N-well of the negative voltage holding transistor are coupled together and are float. The negative voltage holding transistor and the positive voltage holding transistor are coupled between the anode and the cathode in a manner of back-to-back.

主权项

1. An electrostatic discharge protection structure, comprising:
an anode coupled to an input terminal; a cathode coupled to a ground terminal; a first negative voltage holding transistor comprising an N-well; and a first positive voltage holding transistor comprising an N-well coupled to the N-well of the first negative voltage holding transistor; wherein: the first negative voltage holding transistor and the first positive voltage holding transistor are coupled in series between the anode and the cathode in a manner of back-to-back; and the N-well of the first positive voltage holding transistor is floating.