Fujitsu Corporation

Yasuo Yatsuda

Kazuto Tsuji

Yukio Saigo

Fumitoshi Fujisaki

Shinichiro Maki

Nobuo Ooyama

Michihiro Aoyama

Masafumi Tetaka

Youichi Matae

Atsushi Yano

Syunichi Kuramoto

A semiconductor device and a method of producing the same are provided. The semiconductor device includes: a semiconductor chip; a resin package which seals the semiconductor chip; signal passages which guide the signal terminals of the semiconductor chip outward from the resin package; a grounding metal film in contact with the bottom surface of the semiconductor chip; and a grounding passage which is connected to the grounding metal film and guided outward from the resin package.

Semiconductor device and method of producing the same

A data input device, such as a keyboard, comprising at least one key having a static electricity releasing circuit incorporated therein. The key comprises a manually operable keytop for pushing the membrane switch and is made from an electrically conductive plastic. At least one coil spring is provided between the keytop and the support panel or the other conductive layer that is connected to a ground. Thus a static electricity releasing circuit is formed from the keytop to the ground via the coil spring so as to instantaneously and reliably release static electricity that has accumulated on an operator to a ground.

Data input device with a manually operable key having static electricity

Growing community of inventors

Satsuma-gun, Japan

Yasuo Yatsuda