RICHARD ANTHONY ZIEGLER
Pilots at Southwood Dr, Vestal, NY
License number
New York A2130327
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
201 Southwood Dr, Vestal, NY 13850
Professional information
System For Measuring And Detecting Printed Circuit Wiring Defects
US Patent:
4650333, Mar 17, 1987
Filed:
Apr 12, 1984
Appl. No.:
6/599422
Inventors:
Robert M. Crabb - Endicott NY
Steven M. DeFoster - Binghamton NY
Norman E. Rittenhouse - Endicott NY
Mark A. West - Binghamton NY
Richard A. Ziegler - Vestal NY
Steven M. DeFoster - Binghamton NY
Norman E. Rittenhouse - Endicott NY
Mark A. West - Binghamton NY
Richard A. Ziegler - Vestal NY
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
G01B 1124
US Classification:
356376
Abstract:
A non-contact system for detecting printed circuit wiring defects and for measuring circuit feature height relative to a substrate. The system has an energy source for illuminating the substrate and circuit features and a scanner for both instantaneously receiving energy reflected from the substrate and circuit features and for generating a signal in response to the reflected energy, which signal is adapted to vary with the intensity of the reflected energy. An analyzer is connected to the scanner for correlating the generated signal to a measurement representative of the height of the circuit features relative to the substrate. Variations and non-uniformity of the substrate surface due to bending, warpage or other causes can be accounted for so as to provide an accurate measurement of the height of a circuit feature relative to the substrate surface on which it is mounted.