D-MAX DMC-20SEC Manual de usuario descargar pdf (Pagina 41)

meniscus. The meniscus forms from the liquid alloy during the soldering process. After

cooling, the meniscus becomes solid and reflects illumination which means that we can classify

them. From these reflection patterns and with the help of image processing algorithms we are

able to determine the quality of the solder joints. As described above, the correct source of

illumination is essential. There are several different kinds of approach: white or RGB; directed

or diffuse; ring or hemisphere.

This survey gives state of the art review of current automated optical inspection systems in

the electronic device manufacturing industry. The aim of the chapter is to give an overview

about the development phases, operating mechanisms, advantages and disadvantages of AOI

appliances, their technical parameters, field of usage, capabilities and possible trends for

further developments.

Author details

Mihály Janóczki

, Ákos Becker

, László Jakab

, Richárd Gróf

and Tibor Takács

*Address all correspondence to: [email protected]

1 AGC Glass Hungary Ltd., H-2851 Környe, Hungary

2 DENSION Audio Systems Ltd., Budapest, Hungary

3 Department of Electronics Technology, Budapest University of Technology and Econom‐

ics, Budapest, Hungary

4 Epcos AG, Heidenheim, Deutschland

5 Department of Control Engineering and Information Technology, Budapest University of

Technology and Economics, Budapest, Hungary

References

[1] Matthew T. Holzmann, Automatic Optical Inspection Of Circuit Assemblies In a

High Mix/Low Volume Environment, Christopher Associates, Inc. Santa Ana, Cali‐

fornia USA

[2] Miran Burmen, Franjo Pernuš and Boštjan Likar, LED Light Sources: A Survey of

Quality-Affecting Factors and Methods for Their Assessment, Measurement and Sci‐

ence Technology Vol. 19, No.12, 2008, 122002 (15pp)

Automatic Optical Inspection of Soldering

http://dx.doi.org/10.5772/51699

427

1 2 ... 36 37 38 39 40 41 42 43 44 45 46 ... 55 56

Sin comentarios

D-MAX DMC-20SEC Manual de usuario Pagina 41