Minnesota Mining and Manufacturing Company

Juergen K Schmidt

David S Hardcastle

Thomas M Cherney

Richard A Pope

Adalberto Gonzalez

Guenter Ploehn

An interconnection providing multiple electrical interconnections at a fine pitch can be formed in a pluggable and unpluggable form having a pitch on the order of 0.8 mm, using four rows of contact elements in each of the plug and socket which are in a continuous row and not staggered along the row with other contact elements, making the interconnection easier to manufacture and utilize.

Board-to-board interconnection

A contact device for an electrical component, particularly a connector, comprising at least one contact element, said contact element having a first contact portion located within said component and second contact portion projecting downwardly beyond said component and adapted to be connected to a conductor, in particular a conductor of a printed circuit board, by soldering, wherein the first contact portion consists of a resilient metallic material and the second contact portion consists of a shape memory alloy, the alloy having a transformation temperature which is significantly higher than the operation temperature of the contact device, the contact device being located or oriented such that it deforms towards said conductor above said transformation temperature.

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Neuss, Germany

Juergen K Schmidt