Patent ID: 9741709
Date: 2017-08-22
CPC Classifications: H01L

Claim:
1. An electrostatic discharge (ESD) protection device comprising: a semiconductor substrate with an ESD protection circuit formed therein; a first metallic film disposed on a first portion of a first surface of the semiconductor substrate, and electrically connected to a first input/output terminal of the ESD protection circuit; a second metallic film formed on a second portion of the first surface of the semiconductor substrate, and electrically connected to a second input/output terminal of the ESD protection circuit; a rewiring layer including a pair of in-layer electrodes electrically connecting the first metallic film to a first external electrode and the second metallic film to a second external electrode; and an insulating resin film formed on a second surface of the semiconductor substrate that opposes the first surface of the semiconductor substrate, wherein the insulating resin film has a same thickness as a resin layer included in the rewiring layer.