Browse Prior Art Database

Master Target Video Inspection Station

IP.com Disclosure Number: IPCOM000062441D
Original Publication Date: 1986-Nov-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 2 page(s) / 28K

Publishing Venue

IBM

Related People

Busacco, RA: AUTHOR [+3]

Abstract

A method of visually inspecting a substrate, or other solid state device, is accomplished by using a video system with a special effects generator (SEG) to lock together the images of a device to be inspected and a master image to serve as the comparison, and then displaying these superimposed images on a video monitor. A model device 1, i.e., a substrate, etc., serving as the reference device, is mounted on a workstation 2 that is attached to a base plate 3. The target device (device to be inspected) 4 is similarly mounted on a workstation 2 and is attached to a common base plate 3. Both devices 4 are viewed by video cameras 5, 6, and the devices are magnified to a size of choice by microscopes 7, 8 attached to lenses 9, 10 of video cameras 5, 6, respectively.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 2

Master Target Video Inspection Station

A method of visually inspecting a substrate, or other solid state device, is accomplished by using a video system with a special effects generator (SEG) to lock together the images of a device to be inspected and a master image to serve as the comparison, and then displaying these superimposed images on a video monitor. A model device 1, i.e., a substrate, etc., serving as the reference device, is mounted on a workstation 2 that is attached to a base plate 3. The target device (device to be inspected) 4 is similarly mounted on a workstation 2 and is attached to a common base plate 3. Both devices 4 are viewed by video cameras 5, 6, and the devices are magnified to a size of choice by microscopes 7, 8 attached to lenses 9, 10 of video cameras 5, 6, respectively. Images from both video cameras 5, 6 are transmitted to a video monitor 11 where a method known as chroma-key permits separate video signals to be integrated into one signal. Use of an X-Y traverse table 12 allows both devices to display their corresponding sections because movement is identical, relative to position.

1

Page 2 of 2

2

[This page contains 3 pictures or other non-text objects]