Circuit board with primary and secondary through holes

Electricity: conductors and insulators – Conduits – cables or conductors – Preformed panel circuit arrangement

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Details

361760, 361767, 361768, 361777, 361783, H01B 700

Patent

active

061629979

ABSTRACT:
A circuit board is provided which has contacts on the surface arrayed to engage contact pads on a chip carrier bounded by a grid. A plurality of primary through holes are provided in the circuit board location within the grid and electrically connected to chip contact pads thereabove. A plurality of secondary through holes are provided which are located outside the grid and electrically connected to the inside of the chip contact pads. The spacing of the contacts on top of the board is less than the spacing of the contacts on the bottom.

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