Tokyo Seimitsu Co., Ltd.

Tetsuya Yasunaka

Akira Yamaguchi

Naoki Kasai

Hiroki Ishida

Yasuhito Iguchi

Yuta Sato

Wataru Kawasaki

Kazuma Takii

Naoyuki Yamazoe

Teppei Aoki

The wafer test system includes: a prober including a chuck that holds a semiconductor wafer and a probe card having probe needles thereon, and brings the probe needles in contact with semiconductor chips formed on the semiconductor wafer to inspect the semiconductor chips; an overhead hoist transport that delivers the cassette that houses the plurality of semiconductor wafers to be inspected to the prober and withdraws, from the prober, the cassette that houses the semiconductor wafers that have been inspected; a conveying control unit that controls the overhead hoist transport to convey the probe card between a replacement position of the probe card predetermined in the prober and a storage of the probe card located in a place different from the prober; and a card conveying mechanism that conveys the probe card between a holding position in the prober and the replacement position.

Wafer test system, probe card replacing method, and prober

Growing community of inventors

Tokyo, Japan

Tetsuya Yasunaka