Browse Prior Art Database

Top Card Crossover and Top Card Cable Assembly

IP.com Disclosure Number: IPCOM000045615D
Original Publication Date: 1983-Apr-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 2 page(s) / 72K

Publishing Venue

IBM

Related People

Burch, RH: AUTHOR [+2]

Abstract

Top card crossover (TCC) second level packaging requires a sufficient number of input/output (I/0) pin connections per socket position. It would also be desirable to provide polarization, positive retention, or ease of unplugging techniques incorporated into a single assembly.

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Top Card Crossover and Top Card Cable Assembly

Top card crossover (TCC) second level packaging requires a sufficient number of input/output (I/0) pin connections per socket position. It would also be desirable to provide polarization, positive retention, or ease of unplugging techniques incorporated into a single assembly.

A TCC assembly (Fig. 1) is disclosed which will incorporate all of the above features and will increase the number of I/O's 1. A housing design is provided which includes: A board segment polarization feature 2 to insure the I/O board is assembled to the plastic housing in the correct orientation. A positive I/O board segment retention feature 5 to insure that the board segment is retained to the housing during plugging/ unplugging of mating cables and/or card assemblies. A polarization feature 3 to insure that the TCC assembly is plugged to the mating card assembly in the correct orientation and positioning. A mating card assembly positive retention feature 7 to insure the TCC assembly (with or without cables) is retained to the card assembly during shipping, and operation at the higher assembly.

In an application where flat cables are required to plug onto the top of card assemblies with connectors (Fig. 2), the TCC assembly housing includes:

A polarization feature 4 to insure that the mating cable assemblies are plugged into the TCC assembly in the correct orientation.

A mating cabling positive retention feature 6 to insure the cable assembl...