Electricity: conductors and insulators – Conduits – cables or conductors – Preformed panel circuit arrangement
Patent
1997-04-25
2000-06-27
Kincaid, Kristine
Electricity: conductors and insulators
Conduits, cables or conductors
Preformed panel circuit arrangement
174264, 174260, 439 91, 22818021, 361768, H01R 909
Patent
active
060809361
ABSTRACT:
A connecting board is provided for disposition between a base plate such as a LGA base plate and a mounting board such as a printed circuit board. The connecting board has a substrate having a plurality of through holes. Each through hole extends between opposite first and second surfaces of the substrate and includes connecting portions having a continuous oval shape. An easily deformable soft metal body is mounted in each through hole in such a way as to have protruded portions protruding from the first and second surfaces of the substrate. The protruded portions of the soft metal body are different in protruding height. The connecting board are connected at the protruded portions to the base plate and the mounting board. The heights of the protruded portions are set depending upon the materials and the coefficients of thermal expansion of the LGA base plate, printed circuit board and connecting board. By making the protruding heights of the protruded portions different from each other, the distance between the LGA base plate and the connecting board and the distance between the connecting board and the printed circuit board are set desiredly.
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Saiki Hajime
Yamasaki Kozo
Cuneo Kamand
Kincaid Kristine
NGK Spark Plug Co. Ltd.
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