Patent ID: 8395875
Filing Date: 2013-03-12
Classification: H01T,H05K

Abstract:
1. A spark gap for protecting electronic circuits from excessive electrical surges, comprising: a substrate containing an opening, the opening extending at least partially through said substrate and being defined by first and second opposing sides; a dielectric medium substantially occupying the opening; a first electrode, substantially embedded in said substrate on the first side of the opening, including a first plated hole extending at least partially through said substrate, the first plated hole having a first conductive surface substantially exposed in the opening and to said dielectric medium; and a second electrode, substantially embedded in said substrate on the second side of the opening, having a second conductive surface that extends at least partially through said substrate and is substantially exposed in the opening and to said dielectric medium, the first conductive surface being in opposing relation to the second conductive surface and being spaced apart from each other by a predetermined distance, whereby an electrical arc is generated across the opening, from one of the conductive surfaces to the other one of the conductive surfaces, when an electric potential exceeding a threshold value develops between the conductive surfaces.