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Component Shapes New SIPLACE Vision Functions for 605 and 701 St ation SW SIPLACE Vision Robustness Display S tudent Guide SIPLACE V ision (Customer) Component Shapes Edition 12/2008 EN 106 5.4.2.5 Scale or FeatureSize F…
Component Shapes
SIPLACE Vision Robustness Display New SIPLACE Vision Functions for 605 and 701 Station SW
Student Guide SIPLACE Vision (Customer)
Edition 12/2008 EN Component Shapes
105
5-6: Brightness tests
With the brightness reduced by 10% the leads only produce a gray value of 130 (red green) at the edges.
5-7: Brightness tests
With the brightness reduced by 20% the leads at other edge surfaces only produce gray values between
100 and 120 (green).
For this reason the filter edges of the leads are not found in a horizontal position as in the programmed
geometry. No model will be recognized at the position concerned, none of the inspection steps will be
performed or shown accordingly in the menu window.
5.4.2.4 Shading at the Image Border
This function was carried out with component of 5.6 x 5.1 mm (2220) in size at a C&P20 camera. Thus
a component border with almost the specified borders of the camera with an FoV of 8.4 x 8.4 mm results.
(The reticle shows a graduation of 0.1 mm.)
Component Shapes
New SIPLACE Vision Functions for 605 and 701 Station SW SIPLACE Vision Robustness Display
Student Guide SIPLACE Vision (Customer)
Component Shapes Edition 12/2008 EN
106
5.4.2.5 Scale or FeatureSize
For CHIP and MELF components shape and feature size values are directly connected. The shape
widths correspond to the leg widths, the shape lengths in X direction determine the offset for leg groups
at a given leg length. For this reason both checks are discussed together.
If the faulty measurement result is opened, each measurement step that could fail in this robustness test
can be selected.
The correction of the X dimension from 5.8 mm to 5.7 mm has the effect that the reduced component
charge will be detected because it is inside the 0.4 mm size tolerance after the correction.
5-8: Original component shape size "measurement result"
The mechanical dimension in Y direction (vertical)
was correctly programmed, which can be
recognized in the congruence of the programmed
outline and the shape edges of the component.
In contrast, the X dimension is a bit too large. But
this has no unfavorable effect on the
measurement result.
A smaller component, however, would be rejected
because of a size error.
5-9: Reduced component shape size X dimension check
As can be seen in the X dimension inspection
step, the recognition of the shape edge for
reduced component dimensions fails on the right
side of the component. The red line shows the
recognized shape edge which is located outside
the position tolerances marked with a green line.
Component Shapes
SIPLACE Vision Robustness Display New SIPLACE Vision Functions for 605 and 701 Station SW
Student Guide SIPLACE Vision (Customer)
Edition 12/2008 EN Component Shapes
107
The opposite error situation, when the dimensions selected are too small:
5-11: Size programming error in the original result and as an effect of the "size check"
These robustness size checks applied to component shape types with leads show possible small
deviations of the feature geometries.
5-10: Corrected reduced component size X dimension check
The shape edge is now found within the 0.4 mm
tolerance in inspection step X dimension.