Browse Prior Art Database

EC Slug (Used to Isolate Board Wiring to Modular Connector Contacts and Create New Paths for Back Board Wiring)

IP.com Disclosure Number: IPCOM000103038D
Original Publication Date: 1990-May-01
Included in the Prior Art Database: 2005-Mar-17
Document File: 1 page(s) / 40K

Publishing Venue

IBM

Related People

Johnson, RA: AUTHOR [+4]

Abstract

Today's rework methodology is inadequate for future modular connector schemes. Since our present discrete pin technology restricts improvements in densities, modular connectors and rework schemes are required. (Image Omitted)

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

EC Slug (Used to Isolate Board Wiring to Modular Connector Contacts and Create New Paths for Back Board Wiring)

      Today's rework methodology is inadequate for future modular
connector schemes.  Since our present discrete pin technology
restricts improvements in densities, modular connectors and rework
schemes are required.

                            (Image Omitted)

      Rework is presently accomplished by drilling out the bad
contact stem.  The hole is not drilled through the top surface of the
board; hence, the connector module is left untouched and will not be
exposed to metallic drilling chips.

      After the hole is cleaned out, the EC slug is installed.  This
slug is composed of a beryllium copper tube wrapped in an insulator
and filled with solder.  After all the EC slugs are inserted in the
holes to be reworked, the board is heated (backside up) until the low
temperature solder forms an electrically good connection.  Each slug
is then secured in place with epoxy.

      Traditional backside board wiring can now be done.

      Disclosed anonymously.