Browse Prior Art Database

Anti-Motion Packaging of Electronic Cards

IP.com Disclosure Number: IPCOM000102744D
Original Publication Date: 1990-Jan-01
Included in the Prior Art Database: 2005-Mar-17
Document File: 1 page(s) / 42K

Publishing Venue

IBM

Related People

Orchard, RJ: AUTHOR

Abstract

Disclosed is an anti-motion packaging system for electronic cards which minimizes the possibility of card motion. A minute amount of motion between the card contacts and the mating connector can cause fretting corrosion leading to contact failure.

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

Anti-Motion Packaging of Electronic Cards

      Disclosed is an anti-motion packaging system for electronic
cards which minimizes the possibility of card motion. A minute amount
of motion between the card contacts and the mating connector can
cause fretting corrosion leading to contact failure.

      The figure shows the essential elements of this system in an
embodiment packaging three cards. In a conventional manner card
assembly 1 is plugged into card socket 2 mounted on motherboard 3
which is firmly mounted to housing 4 by fasteners 5. Each card 1 has
a notch 6 in its top edge as shown in view A. A card spacer
7 is installed across the tops of the cards seated in these notches.
Card spacer 7 is molded with grippers 8 which firmly grip the cards
and properly space them. A metallic buckling spring is attached to
the top of the card spacer 7. A plenum 10, provided with flanges 11,
is brought down over the cards and fastened securely to housing 4
with fasteners 12. It is seen that plenum 10 compresses spring 9,
thus holding the cards firmly in their sockets, and that flanges 11
bear against the ends of spacer 7 preventing lateral card motion. It
is seen that the cards and the motherboard are firmly held together
as a unit mounted in the housing and that relative motion between
cards and board is minimized.

      Disclosed anonymously.