Mitsubishi Electric Corporation

Shinichiro Ando

Hiroyuki Kato

Hideaki Yamamoto

Toshio Nakayama

Masaaki Kadoyanagi

Kenichi Oi

Yorimasa Yasuda

Nichika Moriguchi

Satoru Kozuka

Akihiro Gonda

Masao Kanatani

Kohei Nakanishi

A mount board has a plurality of terminals electrically connected to a plurality of pins of a semiconductor device, and a conductor pattern. An electrostatic withstand voltage test device includes a metal plate on which the mount board is installed, a power supply for applying a voltage to the metal plate, an insulator disposed between the metal plate and the mount board, a switch circuit connected between the terminals and ground wiring, and a controller for controlling the switch circuit. The switch circuit includes a plurality of first switches provided corresponding to the terminals and each connecting a corresponding terminal to the ground wiring. The controller turns on at least one first switch selected from the first switches when an electric charge stored in the conductor pattern is discharged to the ground wiring through the semiconductor device.

Electrostatic withstand voltage test device and electrostatic withstand voltage test method

Servo amplifier

Growing community of inventors

Tokyo, Japan

Shinichiro Ando