Kel Corporation

Mitsuho Tanaka

Akira Katsumata

Hiroshi Arisaka

Koichi Asai

Nobuyuki Tanaka

Yoshimitsu Arai

Nobuo Ishimine

Mitsuo Morishita

Masakazu Koiso

Kazuhiko Yokomae

Teruhisa Tabuchi

Yukio Komine

Photoelectric conversion connector

A film circuit connector in which respective conductive tracks in film contact areas on front, mating faces are pressed together into electrical connection between side walls of a metal channel-section receptacle spring and a compressible elastomeric plug spring which engage respective rear faces of the films, the compressible plug spring providing a counter-force to the receptacle spring force, accommodating any variations in receptacle spring force arising longitudinally thereof, ensuring constant contact force between all tracks. Tabs for anchoring and grounding the receptacle spring to the circuit board are struck out and bent down from opposite walls of the receptacle spring, enabling electrical shielding of contact areas. Linking portions of conductive tracks connecting the mating contact portions on the front face of the film to board connecting portions, are formed on the rear face of the film for electrical and mechanical protection and may be insulated on all sides. The film is formed with windows for exposing conductive tracks for connection to a circuit board and pockets for trapping board mounted solder pads for connection to the conductive tracks. Film positioning and clamping members in the receptacle locate end film portions inwardly minimizing occupation of board space.

Connector assembly for film circuitry

A film circuit connector in which respective conductive tracks in film contact areas on front, mating faces are pressed together into electrical connection between side walls of a metal channel-section receptacle spring and a compressible elastomeric plug spring which engage respective rear faces of the films, the compressible plug spring providing a counter-force to the receptacle spring force, accommodating any variations in receptacle spring force arising longitudinally thereof, ensuring constant contact force between all tracks. Tabs for anchoring and grounding the receptacle spring to the circuit board are struck out and bent down from opposite walls of the receptacle spring, enabling electrical shielding of contact areas. Linking portions of conductive tracks connecting the mating contact portions on the front face of the film to board connecting portions, are formed on the rear face of the film for electrical and mechanical protection and may be insulated on all sides. Film positioning and clamping members in the receptacle locate end film portions inwardly minimizing occupation of board space.

A disk-shape portion of a surface mount connector housing or a separate cap member provides an upwardly facing surface adherable by suction to a suction nozzle of a conventional, automatic, vacuum type pick-and- place assembly tool and are, respectively, either integrally joined to the connector at the mating face, by a frangible or severable portion, or releasably attached to the connector housing by resilient legs which grip the housing between them, enabling the connector to be carried into position on a circuit board by the tool.

Electrical connector assembly for positioning on a circuit board by a

A connector for an LGA IC device or a PGA IC device comprises an array of terminals in a housing each with a receptacle portion receiving a contact member mounted on the upper end of an axially extending compression spring for tilting movement into engagement with the receptacle wall at two, axially spaced locations by engagement with a pin or land depressing the spring. The contact member may be retained within the receptacle providing a socket for a pin of a PGA IC device or formed as a pin protruding from the free end of the receptacle for engagement with a land of an LGA IC device, in both cases providing a force assisting disconnection of the device.

Electrical connector for repeated connection to integrated circuit grid

Growing community of inventors

Tokyo, Japan

Mitsuho Tanaka