DocumentCode
2606305
Title
The Detection of Barrel Cracks in Plated Through Holes using Four Point Resistance Measurements
Author
Rudy, D.A.
Author_Institution
Bell Laboratories, Whippany, New Jersey 07981, (201) 386-3000
fYear
1976
fDate
27851
Firstpage
135
Lastpage
140
Abstract
The influence of voltage and current probe connections on the detection of barrel cracks and similar flaws in plated through holes is discussed. Theoretical calculation of the sensitivity of a four point resistance measurement to the length of a barrel crack is compared to experimental results for a variety of current voltage probe configurations.
Keywords
Current density; Current distribution; Current measurement; Electrical resistance measurement; Nonhomogeneous media; Probes; Size control; Strips; Testing; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Reliability Physics Symposium, 1976. 14th Annual
Conference_Location
Las Vegas, NV, USA
ISSN
0735-0791
Type
conf
DOI
10.1109/IRPS.1976.362733
Filename
4208117
Link To Document