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Component Shapes Specific Component Shapes Optical Rec ogn ition and Evaluation of Unleaded COs S tudent Guide SIPLACE V ision (Customer) Component Shapes Edition 12/2008 EN 64 5.3.6.3 Algorithm V alues These settings do…

Component Shapes

Optical Recognition and Evaluation of Unleaded COs Specific Component Shapes

Student Guide SIPLACE Vision (Customer)

Edition 12/2008 EN Component Shapes

Y dimension measurement step

The brightness gradients are determined for the Y

direction.

The light blue double arrow shows the CO width

and width tolerance. The gradient signal for the

CO width is displayed in yellow.

Lower gradients indicate the CO outer edge (due

to dark body). If these are high enough, the outer

edge of the body can be determined. If not, the

high gradients for the lead side are used to

determine the alternative body width Y of the

Moulded CO.

The horizontal green lines on each side of the

CO show the tolerance field which the CO edge (or

lead side) must be within.

The horizontal red lines show the detected CO

outer edge.

Measurement window showing Dimension

result recognition step

The dimension rectangle for the determined CO

length (X) and width (Y) is displayed in green in the

CO fine position and fine angle.

At the edge of the rectangle shown, you can

clearly see the pseudo-color image, with the

injection edge of the Tantal capacitors (Moulded

COs).

The dimension check result is only shown here, in

the dimension result step.

Component Shapes

Specific Component Shapes Optical Recognition and Evaluation of Unleaded COs

Student Guide SIPLACE Vision (Customer)

Component Shapes Edition 12/2008 EN

5.3.6.3 Algorithm Values

These settings do not normally need to be changed.

Diagram centering result

The diagram shows the following:

 CS X/Y orientation: green angle in CO center.

 CO center recognized for placement: white

dotted line.

 Permitted CO angle tolerance: diagonal

yellow lines in CO camera center.

Since the results display is so important, it was

already shown during the intermediate centering

steps. If an error occurs, this will also be displayed,

so you can make the necessary adjustments.

The minimum thresholds for various measurement

steps can be altered here.

The relevant threshold and measurement value

bars will then be redrawn in the recognition step

diagram.

If the quality values for the symmetry procedure

are not achieved, centering will be performed with

the template method.

Sub sampling coarse/fine angle: gathers

several points of the image together, to form one

evaluation point.

Attention: The predefined recognition menus will

change when you switch over threshold values!

Component Shapes

Leaded Component Shapes Specific Component Shapes

Student Guide SIPLACE Vision (Customer)

Edition 12/2008 EN Component Shapes

5.3.7 Leaded Component Shapes

In SIPLACE Vision, leaded components are defined as those which have measurable i.e. visible

(narrow) leads. In most cases, the leads are aligned towards the outside.

The CO position and angle are determined from various algorithms such as lead selection, filtering the

recorded image etc.. In a second step, the so-called inspection stage, the system uses gradient

formation to determine the number of leads, lead position and lead grid (pitch) for the CO position

measured in the previous step.

 From SR/MC 603, the position of asymmetrical leads can be optically recognized and then corrected

with "Orientation". The operator gets the notification "component picked up at a wrong angle". In the

case of components such as SOT 23, the additional measuring time required is due to the dynamics

times for the C&P 6/12 head.

Important! This function may NOT be activated for symmetrical lead arrangements! It would lead to

random angle placement errors.

 From SR/MC 702 (SV 4.0.1), SOxx, SOT, DPACK, QFP, Socket, Connector and Nonstandard can

use 'non-specific component features’ for FaceDown recognition.

ECV, SOT, SOXX, SOJ, QFP, PLCC, DPACK, Socket, Connector and Nonstandard now have a lead

width measurement function. This also functions with programmed notches for nonstandard CSs.

Notes for Joint Datasets (ICOS and SIPLACE Vision)

In the following special cases, you may need to program separate group descriptions for ICOS

and SIPLACE Vision:

 In ICOS systems, these bodies are occasionally described as leads when bright component bodies

are used.

 Group and/or lead descriptions were also consciously omitted in this system.

 Components with leads were often trained with only the SIZE measurement mode. In this case,

check whether a general correction for both systems needs to be made in ICOS!