Analog AC harmonic method for detecting solder opens

Author

Suto, Anthony J.

Author_Institution

GenRad Inc., Concord, MA, USA

fYear

1996

fDate

20-25 Oct 1996

Firstpage

928

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

analogue circuits; automatic testing; fault diagnosis; harmonic analysis; printed circuit testing; production testing; soldering; 50 to 80 ohm; AC method; AC response; Junction Xpress; analog AC harmonic method; digital vectors; learning; marginal solder connections; open connections; overclamp style capacitive probes; printed wiring boards; response harmonics; software algorithm; solder opens; vectorless test; Circuit testing; Detectors; Manufacturing processes; P-n junctions; Packaging; Pins; Power harmonic filters; Protection; Substrates; Wiring;

fLanguage

English

Publisher

ieee

Conference_Titel

Test Conference, 1996. Proceedings., International

Conference_Location

Washington, DC

ISSN

1089-3539

Print_ISBN

0-7803-3541-4

Type

conf

DOI

10.1109/TEST.1996.557158

Filename

557158

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2062867