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Browse Prior Art Database

Stiffeners Aid Testing of Under Populated Card Assemblies

IP.com Disclosure Number: IPCOM000108154D
Original Publication Date: 1992-Apr-01
Included in the Prior Art Database: 2005-Mar-22
Document File: 1 page(s) / 54K

Publishing Venue

IBM

Related People

Crowell, J: AUTHOR [+2]

Abstract

When using stiffeners of the type shown in the figure, significantly less retests are needed on electronic card assemblies that are tested on vacuum type testers that test through the top and/or bottom connectors.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Stiffeners Aid Testing of Under Populated Card Assemblies

      When using stiffeners of the type shown in the figure,
significantly less retests are needed on electronic card assemblies
that are tested on vacuum type testers that test through the top
and/or bottom connectors.

      In the figure, card assembly (1) is inserted into the slots of
the phenolic stiffeners (2) during testing.  This stops the card from
buckling due to the pressure applied by the tester and the lack of
resistance exerted by the low population of components on the card.
This action causes the connectors to remain straight and the contacts
are readily accessible to the tester's test probes.

      Some card assemblies may require use of an ionizer for ESD
protection against static electricity that may accompany the phenolic
stiffener.

      Disclosed anonymously.