Patent ID: 8345404

Claim:
A method of manufacturing an electrostatic discharge (ESD) protector, the method comprising: forming a conductive layer mainly made of gold on an upper surface of an insulating substrate; forming a plurality of electrodes facing each other via a gap by forming the gap in the conductive layer; forming an overvoltage protective layer covering the gap and a portion of each of the electrodes; forming an intermediate layer covering the overvoltage protective layer; and forming a protective resin layer completely covering the intermediate layer and the overvoltage protective layer, wherein the protective resin layer has a physical breaking strength higher than a physical breaking strength of the intermediate layer, and wherein the intermediate layer comprises silicone-resin-based insulating resin and insulating powder made of Al 2 O 3 , SiO 2 , MgO, a composite oxide of Al 2 O 3 , a composite oxide of SiO 2 , or a composite oxide of MgO.