Shibaura Mechatronics Corporation

Yutaka Yatsu

Noboru Kuriyama

Yoshio Kawamata

Takashi Fujii

Yuji Yasumoto

Nobuaki Utsunomiya

The present invention is such that, in a circuit for preventing an arc discharge through the application of a reverse voltage pulse, in the case where, after the application of the reverse voltage pulse has been ended, the generation of an arc discharge is detected by an arc discharge detecting means ( ), a reverse voltage generated by a reverse voltage generating means ( ) is applied within 1 to 10 &mgr;s to a sputtering source to lower the probability of generating a continuous arc discharge and, through a diode (D ) connected in series with the sputtering source ( ) and a resistor (r ) connected in parallel with the diode (D ), a current at a time of applying the reverse voltage is restricted, thus lowering a continuous arc discharge resulting from the reverse arc discharge.

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Sagamihara, Japan

Yutaka Yatsu