DocumentCode
2530641
Title
Automatic opitcal through hole inspection method for printed wiring boards using leakage light detection
Author
Ando, Moritoshi ; Mita, Kikuo ; Inagaki, Takefumi
Author_Institution
FUJITSU LABORATORIES LTD., ATSUGI, Ono, Atsugi, Kanagawa, Japan
Volume
2
fYear
1985
fDate
31107
Firstpage
481
Lastpage
486
Abstract
New automatic through hole inspection techniques for printed wiring boards (PWBs) were developed. The new method called Leakage Light Detection can detect defects such as cracks and breaks in plating of through holes with aspect ratio as large as ten. A prototype system for automatic through hole inspection is constructed, based on these techniques. This system detects defects in a 250 mm × 250 mm area of a PWB in 8 minutes.
Keywords
Absorption; Circuits; Conductivity; Inspection; Laboratories; Leak detection; Prototypes; Testing; Very large scale integration; Wiring;
fLanguage
English
Publisher
ieee
Conference_Titel
Robotics and Automation. Proceedings. 1985 IEEE International Conference on
Type
conf
DOI
10.1109/ROBOT.1985.1087344
Filename
1087344
Link To Document