Surface flashover of silicon

Recent Developments in the Investigation of Silicon Photoconductive Power Surface Flashover

A limiting factor in the feasibility of photoconductive power switches is the optical energy required to trigger the switch and maintain the conduction. Since the optical energy required is proportional to the square of the length, the length of the switch should be made as short as possible. The minimum length is dictated by surface flashover which occurs a t field strengths which are lower th...

Increased surface flashover voltage in microfabricated devices

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Initiation Mechanism of Pulsed Surface Flashover along Silicon in Vacuum by Pre-breakdown Conduction and Photon Emission

Pre-breakdown (leakage) and breakdown currents and photon-emission associated with the currents, under impulse (0.36!10 IJ-S) voltage stress, along high purity (p>30 KQ em) silicon, with and without gold end contacts in vacuum (-lQ-6 Torr), are discussed. Three distinct phases leading to the breakdown condition are observed. These are one-carrier (hole) leakage current, two-carrier (electrons a...

Natural Contamination and Surface Flashover on Silicone Rubber Surface under Haze–Fog Environment

Anti-pollution flashover of insulator is important for power systems. In recent years, haze-fog weather occurs frequently, which makes discharge occurs easily on the insulator surface and accelerates insulation aging of insulator. In order to study the influence of haze-fog on the surface discharge of room temperature vulcanized silicone rubber, an artificial haze-fog lab was established. Based...

Prediction of Flashover Voltage of Insulators Using Low Voltage Surface Resistance Measurement