news 7
Vision provides quality inspection for electronic components
A customised inspection are used at each measuring station. At two other stations around lens and four LED lighting units
system designed for an electronic For example, surface inspection the turntable, stereoscopic surface arranged in a square along the
components manufacturer is of the blanks is carried out using inspection is used to check for sides of the blanks. The images
providing an automated method a colour camera with a telecentric, protruding irregularities. Examples are then transferred via a FireWire
of inspecting large numbers of low-distortion lens in combination of such irregularities include interface to the system’s image
molybdenum blanks, which act with coaxial lighting that uses a blisters, deep scratches plus bent analysis computer and analysed to
as base plates for semiconductor semi-transparent mirror. A similar corners or edges. The imaging sort the blanks as being acceptable
modules. With cycle times of system is used to detect defects on solution used for this test consists or unacceptable, as well as various
less than 0.7 seconds, the system the underside of the blanks. of a monochrome camera plus other quality classes.
provides a high-speed assessment
of blanks, which are vital for
dissipating heat generated within
the circuitry. Checks are made for
dimensional accuracy, surface
quality and planarity.
The German Mainz-
based system integrator
IMSTec developed the high-speed
optical inspection system using
imaging components and expertise
from Stemmer Imaging.
Both surfaces of each blank
are inspected for colour, coating
defects, discolouration and
superficial scratches. Using
stereoscopic surface and
topography techniques, the blanks
are also tested for blisters, deep
scratches and bent corners or edges
before being classified.
The inspections were
implemented at six measuring
stations arranged in a circle around
a turntable that moves the blanks
to the specified points.
Various imaging components
Vision China
2008 sees record
attendance figures one vision – unlock the possibilities!
Vision China 2008, the 5th
China international machine
vision exhibition and machine
> STEMMER IMAGING has one vision – delivering success to our imaging is our passion
vision technology and application
customers. As Europe’s largest technology supplier of imaging >
www.stemmer-imaging.com
conference, saw record
components and services we offer the competence and experience
attendance figures, with 8,861
that make you stronger. Together we unlock the possibilities
visitors attending the 3,500
of vision. > ANUGA FoodTec, G-Cologne,
square metres of show space.
10.-13.03.09, hall 8.1, booth D 031
The event, which took
> VTX, UK-Birmingham,
place 25-27 November 25.-26.03.09, booth 626
2008, attracted 950 machine
vision representatives from around
the world with 21 senior engineers germany uk & ireland france switzerland
+49 89 80902-0 +44 1252 780000 +33 1 45069560 +41 55 4159090
and technicians present.
stemmer imaging – incorporating firstsight vision and imasys
IMVE_Feb2009_AUGE_135x195_en.indd 1 09.02.2009 14:36:51
IMVEfeb09 pp04-08 news.indd 7 17/2/09 17:04:10
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