Browse Prior Art Database

Conductive Line Jumper Repair Connection in Glass Metal Module

IP.com Disclosure Number: IPCOM000078456D
Original Publication Date: 1973-Jan-01
Included in the Prior Art Database: 2005-Feb-26
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Mackey, RE: AUTHOR [+2]

Abstract

In systems involving surface uniformity constraints, the subject technique is used to form "ultraflat" discrete point-to-point connections between neighboring conductive elements of a module (e.g. for repair of erroneous open circuits).

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

Page 1 of 1

Conductive Line Jumper Repair Connection in Glass Metal Module

In systems involving surface uniformity constraints, the subject technique is used to form "ultraflat" discrete point-to-point connections between neighboring conductive elements of a module (e.g. for repair of erroneous open circuits).

A gold wire 0.5 mil dia. is placed on a glass microscope slide and held in place using compression on the extreme ends of the wire. The wire is now placed across the open line (R(1) or X-Y plane) using a microscope to locate the open and place the wire in position. Weights are placed on the glass slide to provide intimate contact with the wire and open line. Using a xenon laser which lases in the visible spectrum and whose energy is transmitted by glass and absorbed by metals, the wire is welded to the open line. After removal of the glass slide, the laser is used to trim the excess wire. The trim operation requires a high-peak power and short-pulse light. After welding, the repaired plane is glassed over leaving a surface suitable for developing another circuit layer.

1