Title :
Analog AC harmonic method for detecting solder opens
Author_Institution :
GenRad Inc., Concord, MA, USA
Abstract :
Vectorless test techniques are attractive methods to quickly and inexpensively identify and diagnose common process related defects on manufacturers printed wiring boards. Junction Xpress is a new AC method developed to locate open and marginal solder connections without the use of digital vectors or overclamp style capacitive probes. Measuring response harmonics rather than simply the fundamental AC response reduces the tendency of false accepts of open connections
Keywords :
automatic testing; electric resistance measurement; fault location; harmonic analysis; printed circuit testing; soldering; 10 to 20 ohm; Junction Xpress; analog AC harmonic method; open connections; printed wiring boards; response harmonics; solder connections; solder opens; Circuit testing; Detectors; P-n junctions; PROM; Packaging; Pins; Probes; Protection; Substrates; Wiring;
Conference_Titel :
Test Conference, 1997. Proceedings., International
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-4209-7
DOI :
10.1109/TEST.1997.639604
