Patent ID: 8599524
Filing Date: 2013-12-03
Classification: H01L,H01T,H05K,Y10T

Abstract:
1. A spark gap device comprising: a substrate; a metal layer formed over the substrate, the metal layer including a central portion and a peripheral portion that are separated by a gap where no metal from the metal layer is present, the gap surrounding the central portion of the metal layer; a solder resist layer disposed on an exposed surface of the metal layer, the solder resist layer including a central portion disposed on the central portion of the metal layer and a peripheral portion disposed on the peripheral portion of the metal layer, the central portion of the solder resist layer including a first opening exposing a central region of the central portion of the metal layer and the peripheral portion of the solder resist layer including a second opening exposing a peripheral region of the peripheral portion of the metal layer; a first contact formed in the first opening of the solder resist layer and contacting the central region of the central portion of the metal layer; and a second contact formed in the second opening of the solder resist layer and contacting the peripheral region of the peripheral portion of the metal layer.