Patent ID: 6721157
Filing Date: 2004-04-13
Classification: H01T,H05F

Abstract:
An electrostatic discharge device of the surface mount type, comprising:an upper cover plate made of an insulating material; a middle insulating plate made of an insulating material and laminated on a lower surface of said upper cover plate, and having a discharge opening, with first and second discharge terminals formed in said middle insulating plate at opposite edges of said discharge opening; and a lower cover plate made of an insulating material and laminated on a lower surface of said middle insulating plate, and sealing said discharge opening of said middle insulating plate in cooperation with said upper cover plate, said lower cover plate having a second signal electrode brought into electric contact with said first discharge terminal of said middle insulating plate, and a second ground electrode brought into electric contact with said second discharge terminal of said middle insulating plate, whereby discharge gas fills said discharge opening of said middle insulating plate sealed by said upper and lower cover plates.