Patent ID: 9711392
Date: 2017-07-18
CPC Classifications: B81C,H01J,H01L,H02H,H03K

Claim:
1. A semiconductor device comprising an electrostatic discharge protection device, the electrostatic discharge protection device comprising: an array of field emission devices disposed in a semiconductor substrate, the array of field emission device being coupled in parallel with each other and providing a plurality of parallel discharge paths, wherein each field emission device of the array of field emission devices comprises: a plurality of first contact regions disposed at a first major surface of the semiconductor substrate over the first emitter/collector region of each of the array of field emission devices, wherein each of the plurality of first contact regions is coupled to a corresponding one of the adjacent first emitter/collector region; and a common contact region disposed at an opposite second major surface of the substrate, the common contact region coupled to the second emitter/collector region.