Unitechno Corporation

Hitoshi Matsunaga

Yukie Hayashi

Kaori Tashiro

An anisotropic conductivity sheet () comprising an insulating sheet () having a number of through-holes () and a number of conductive bodies is provided. The insulating sheet () has an inner layer (A) of a heat resistant fuloro-elastomer and surface thin layers (B,C) of heat-resistant engineering plastics. Each of the conductive bodies is a wire loop () formed to generally elliptic shape. They are arranged within each of the through-holes () so that long axis of each wire loop () extends in the thickness direction of the insulating sheet (). The anisotropic conductivity sheet () is suitable to use for electrical test of a semiconductor devise (), such as IC. A signal waveform-rectifying sheet () is preferably arranged on the anisotropic conductivity sheet (). The signal waveform-rectifying sheet () has though-holes () in which electrical components for rectifying signals and currents, such as resistors (A), LEDs (B), LR circuits (C) and capacitors (D), are filled up.

Anisotropically conductive sheet

A connector structure comprising a first connecting layer and a second connecting layer. The first connecting layer consists of an electrically insulated portion and a plurality of electrical conductive portions each having first and second surfaces opposing to each other. The first surfaces of the electrically conductive portions are to respectively receive and be held in electrical contact with the terminals of the first electric part. The second connecting layer consists of an electrically insulated sheet and a plurality of electrically conductive paths respectively passing through the electrically insulated sheet obliquely. Each of the electrically conductive paths has first and second ends opposing each other. The second ends of the electrically conductive paths are to respectively receive and be held in electrical contact with the terminals of the second electronic part.

Connector structure for connecting electronic parts

An electrical connector for interconnecting a first circuit such as an integrated circuit having a plurality of IC terminals with a second circuit having a plurality of contact pads when the terminals and pads are positioned opposite each other. The connector includes an electrically insulating sheet made of a first elastic material formed with a plurality of bores extending therethrough in a direction mutually perpendicular to the first and second circuits, and a plurality of electrical conductors, each made of a second, electrically conductive elastic material and shaped so as to contact the first circuit terminals. The elastic material electrical conductors are each positioned relative to the electrically insulating sheet so as to cover each of the bores and extend into the bore co-axially therewith. The elastic conductors are sized to extend into the bores a distance insufficient to contact the second circuit pads when the insulating elastic sheet is uncompressed, and sufficient to contact the second circuit pads when the elastic insulating sheet is compressed, thereby, upon compression of the sheet to complete an electric connection between the first circuit terminals and the second circuit pads.

Electrical connector incorporating an elastic electrically conductive material

Herein disclosed a connector for electrically connecting an integrated circuit having a plurality of IC terminals with an electronic circuit having a plurality of electronic pads each corresponding to each of the IC terminals of the integrated circuit. The connector comprises an insulating elastic sheet having first and second surfaces and formed with a plurality of through bores at the positions corresponding to the IC terminals of the integrated circuit and a plurality of conductive portions to be respectively received in the through bores of the insulating elastic sheet. Each of the conductive portions comprises first and second conductive pressing plates respectively disposed on the first and second surfaces of the insulating elastic sheet to cover each of the through bores of the insulating elastic sheet; a lead member positioned in each of the through bores of the insulating elastic sheet to have its both ends respectively connected with the first and second conductive pressing plates; and first and second conductive terminals having their one ends connected to the first and second conductive pressing plates to have their other ends face to each of the IC terminals of the integrated circuit and the electronic pads of the electronic circuit, respectively. The lead member of each of the conductive portions is formed with a twisted bundle of a plurality of fine leads each being fine enough to bend in accordance with the elastic movement of the insulating elastic sheet and to cause rotation of the conductive terminal.

Connector for electronic parts

Herein disclosed is a test device for testing an integrated circuit (IC) chip having a plurality of side edge portions each provided with a set of contact members. The test device comprises a socket base on which the IC chip is to be set, a plurality of contact units each including a contact support member and a set of socket contact members supported by the contact support member, and a contact retainer detachably mounted on the socket base to have the contact units retained with the socket contact members being held in contact with the contact members of the IC chip while the IC chip is set on the socket base. Each of the contact units can be removed from the socket base and replaced by a new contact unit if the socket contact members partly become fatigued and damaged, thereby making it possible to facilitate the maintenance of the test device.

Growing community of inventors

Ebina, Japan

Hitoshi Matsunaga