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Low-Cost Module Connection System With Adapter Plate

IP.com Disclosure Number: IPCOM000119360D
Original Publication Date: 1991-Jan-01
Included in the Prior Art Database: 2005-Apr-01
Document File: 2 page(s) / 44K

Publishing Venue

IBM

Related People

Gruber, HW: AUTHOR [+2]

Abstract

Pin grid array (PGA) modules are connected to a plated through hole grid array of a card by a compliant pin grid array adapter plate. The compliant pin grid array adapter plate holds a complement of compliant pins matching the number of pins and their locations on the module. The compliant pin adapter plate ensures electrical contact of modules pins and card plated through holes by horizontal pressure between the compliant pin, the module pin and the plated through hole. It allows card assembly and disassembly regardless of the respective card condition.

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Low-Cost Module Connection System With Adapter Plate

      Pin grid array (PGA) modules are connected to a plated
through hole grid array of a card by a compliant pin grid array
adapter plate.  The compliant pin grid array adapter plate holds a
complement of compliant pins matching the number of pins and their
locations on the module.  The compliant pin adapter plate ensures
electrical contact of modules pins and card plated through holes by
horizontal pressure between the compliant pin, the module pin and the
plated through hole.  It allows card assembly and disassembly
regardless of the respective card condition.

      The advantages of the described system are:
      o    The flexibility of the pins in the plated through holes
allows the assembly of large pin grid array modules on the card.
      o    The module-to-card interface is testable for continuity
and other purposes.
      o    The connection may be disassembled at any time without
sophisticated tools or the application of heat for repair or rework.
      o    The module may be replaced at any time for update or
rework.
      o    Reduced card cost, as the modules are assembled by a dry
process that eliminates contamination.