Patent · US Expired

Method of inspecting solder joints

US5108024A · kind A · utility

36Cited by
1References
22Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 3, 1991
Grant dateApr 28, 1992
Priority date
Expiry dateJun 3, 2011

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T29/49004
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A solder joint inspection system comprises a substrate (60) having at least one solder pad (56), a predetermined amount of solder (54) on the solder pad, and an image fluxing material (52) that fluoresces when an ultraviolet light source (42) is applied to the solder (54) and the fluxing material (52). When an ultraviolet light source is applied to the substrate having a predetermined amount of solder and fluxing material, a visual inspecting device (40) can verify if, in fact, the predetermined amount of solder and fluxing material is present.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.