Electrostatic protection device for semiconductor device
OwnerNak Choiinventor
Life of this patent
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Abstract
Disclosed is an electrostatic protection device for a semiconductor device. The electrostatic protection device includes a transfer unit for transferring static electricity introduced through an input/output port to an external voltage line and outputting a first voltage caused by the static electricity, a driver connected between the first voltage and a grounding voltage line, and a discharge unit connected between the external voltage line and the grounding voltage line so as to be driven based on the output of the driver, wherein the driver is turned on by the static electricity transferred to the external voltage line.
Claims7
An electrostatic protection device for a semiconductor device which protects a semiconductor integrated circuit from being damaged by electrostatic discharge introduced through an input/output port, the electrostatic protection device comprising:
- a transfer unit for transferring static electricity introduced through the input/output port to an external voltage line, and outputting a voltage applied at a first node used for transferring the static electricity as a detection voltage;
- a first driver connected between a grounding voltage line and the first node, from which the detection voltage is outputted, operated based on the static electricity transferred to the external voltage line, and driven by means of the detection voltage;
- and
- a first discharge unit driven based on the output of the first driver in order to discharge the static electricity, which has been transferred to the external voltage line, to the grounding voltage line.
Dependencies are inferred from the claim text.