Matsushita Electric Industrial Co., Ltd.

Mitsubishi Denki Kabushiki Kaisha

Toppan Printing Co., Ltd.

Naoki Miyazaki

Masatoshi Takeda

Akira Higuchi

Eiji Watanabe

Kanji Yahiro

Hideyoshi Kitahara

Kenichi Kuroda

Takashi Daikoku

Kenji Ishiyama

Hideki Yamamoto

Takeo Kato

Kazuhiro Kawabata

Reinforcement member for optical storage media

In an automatic testing apparatus comprising, a specimen holder area adapted to hold thereon a specimen substrate for receiving therein a specimen, a reagent injector adapted to inject a reagent toward the specimen in the specimen substrate on the specimen holder area to mix the specimen with the reagent, a mixture reaction device adapted to hold thereon the specimen substrate including the mixture of the specimen and the reagent within a predetermined circumferential condition during a time period, and a transferring device for transferring the specimen substrate relative to the specimen holder area, the mixture reaction device has a take-in area to which the specimen substrate is transferred from the specimen holder area by the transferring device, and the take-in area is arranged adjacent to the specimen holder area.

Automatic testing apparatus

In a method for distributing liquids, in which a distribution tip attached detachably to the lower end of a distribution nozzle can be replaced at any time necessary, a tip rack having a plurality of unused distribution tips lined up thereon is placed on a fitting stage to have the distribution tips fitted with a distribution nozzles. Then, the existence, or non-existence, of a distribution tip left behind on the tip rack without being attached to a distribution nozzle after the fitting operation is finished is detected by a detection section formed of an interrupting-type light sensor, the targeted place of detection by the light sensor being the lower end of the distribution tip. Under the above-described structure, misfitting of a distribution tip can be detected with a high certainty at an early stage before an operation for sucking/discharging liquids is started.

Automatic distribution apparatus and method of distribution

A ball forming apparatus free from parameter variations introduced in setting spark discharge control parameters wherein the variations may be largely of operator-dependent or apparatus-dependent nature. To control discharge parameters, digital data for controlling discharge are transmitted in serial communications from a wire bonder controller to the ball forming apparatus, and the digital data are used to set parameters such as discharge current, discharge time, heat development and the like. The discharge state data acquired during spark discharge is transmitted in serial communications from the ball forming apparatus to the wire bonder controller so that the above parameters are used for feedback control. Irregularity or difference in the ball size that may vary from apparatus to apparatus is eliminated, and an improved bondability results. Unnecessary bondings are reduced, and an improved manufacturing efficiency in semiconductor field is achieved.

Apparatus and method for forming wire bonding ball

A method of forming a ball on the end of a wire by electrical discharge between the wire and an electrode includes detecting the discharge voltage and discharge current of an electrical discharge between an end of a wire having a diameter and an electrode; multiplying the discharge voltage by the discharge current for respective time intervals during the discharge to compute the heat energy supplied in the discharge during each time interval; integrating the heat energy for the time intervals during a discharge to determine the total heat energy supplied during the discharge; comparing the total heat energy with a predetermined heat energy that produces a ball on the end of the wire, the ball having a diameter of about two to three and one-half times the diameter of the wire; and controlling at least one of the discharge voltage, current, and duration in accordance with the comparison and terminating the discharge when the total heat energy supplied to the discharge exceeds the predetermined heat energy.

Method and apparatus for forming balls at the ends of wires

A waterproof water-vapor-permeable laminated structure obtained by extrusion-laminating a thermoplastic resin layer on a porous base material. This laminated structure is free from pin holes and has a good waterproof property and a feeling of the porous base material. The thermoplastic resin layer to be employed in the laminated structure is selected to have a melt viscosity of 5.times.10.sup.4 poise (measurement conditions: load=10 kgf, nozzle diameter=1 mm, nozzle length=1 mm: JIS K 7311, 10) at a temperature lower than an extrusion temperature by 20.degree. C. The laminated structure is suitable for use as a medical waterproof fabric, an inner bag of a coverlet and the like products.

Waterproof water-vapor-permeable laminated structure and applications of

Growing community of inventors

Fukuoka, Japan

Naoki Miyazaki