FIELD: electricity.
SUBSTANCE: between electrodes at fixed distance from them voltage is supplied, the created current melts and evaporates thin wire located between the electrodes. Distance from the cathode to anode is selected such that discharge without wire can not occur inadvertently, and between electrodes there are conditions for avalanche breakdown of the discharge gap creating upon presence in air of the evaporated wire vapours. At that one wire end is in hole inside the cathode surface and touches it, upon voltage supply to the discharge gap from the wire and cathode surface contact point in the cathode the channel is created initiating from the contact point in direction from the connection place of the cathode with negative voltage source pole.
EFFECT: creation of channels in cathode in dependent arc discharge thus increasing efficiency of scientific researches of microelectronics technology.
2 dwg
