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User Manual SIPLAC E CS 3 Technical data Software Vers ion SR.408.xx 03/2006 U S Edition 3.9 Vision modules 85 3.9.2 Component vision camera (st a ndard camera) on the 6-segment Collect&Place head 3.9.2.1 S tructure …
3 Technical data User Manual SIPLACE CS
3.9 Vision modules Software Version SR.408.xx03/2006 US Edition
84
3.9 Vision modules
3.9.1 Description
Each placement system has
– two component vision cameras on the placement heads and
– two PCB vision cameras on the underside of the X-axis gantries.
The vision analysis unit is located in the control unit for the placement system. The component
vision module is used to determine:
– the precise position of the components at the nozzle and
– the geometry of the package form.
The PCB vision camera uses fiducials on the PCBs to determine:
– the position of the PCB,
– its rotation angle
– and the PCB skew.
The PCB vision camera also uses fiducials on the feeders to determine the exact pick-up posi-
tion of components. This is particularly important for small components.
User Manual SIPLACE CS 3 Technical data
Software Version SR.408.xx 03/2006 US Edition 3.9 Vision modules
85
3.9.2 Component vision camera (standard camera) on the 6-segment
Collect&Place head
3.9.2.1 Structure
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Fig. 3.9 - 1 Component vision camera on the 6-segment Collect&Place head
(1) Component camera, lens and illumination
(2) Camera amplifier
(3) Illumination control
3.9.2.2 Technical data
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Max. component dimensions 0.6 mm x 0.3 mm to 18.7 mm x 18.7 mm
Range of components 0201 to PLCC44
including BGA, µBGA, flip-chip, TSOP, QFP
PLCC, SO to SO32, DRAM
Min. lead pitch 0.5 mm
Min. bump pitch 0.35 mm
Min. ball/bump diameter 0.2 mm
Field of vision 24 mm x 24 mm
Method of illumination Front-lighting (3 levels, programable as required)
3 Technical data User Manual SIPLACE CS
3.9 Vision modules Software Version SR.408.xx03/2006 US Edition
86
3.9.3 PCB vision camera (standard camera)
3.9.3.1 Structure
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Fig. 3.9 - 2 PCB vision camera (standard camera)
(1) PCB camera, lens and illumination
(2) Camera amplifier
3.9.3.2 Technical data - PCB vision camera
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Fiducials Up to 3 (subpanels and multiple panels)
Local fiducials Up to 2 per PCB (may be of different types)
Library size Up to 255 fiducial types - system fiducials ≥ 249
Image processing Geometric alignment
Method of illumination Front-lighting
Detection time per fiducial/bad fiducial 0.4 s
Field of vision 5.7 mm x 5.7 mm