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User Manual SIPLAC E F5/F5 HM 6 Vision functions Software version SR.407.xx 01/2001 US Edition 6.7 Guidelines for Describing Pack age Forms 381 Fig. 6.7 - 12 Illumination parameters for components on the 6-segment Collec…

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6 Vision functions User Manual SIPLACE F5/F5 HM
6.7 Guidelines for Describing Package Forms Software version SR.407.xx 01/2001 US Edition
380
A contrast of at least 4 color scales between the lead and body is required for a measurement. In
the ‘Illumination’ menu of the package form manipulator, components are displayed in the pseudo
color representation on the station computer monitor. 6
6.7.9.3 Settings for Illuminating Standard Components
The standard range of components includes chips (0402 to 2220), tantalum capacitors, Melf com-
ponents, PLCCs, QFPs, SOs, SOJs, TSOPs, ICs, power components, flip-chips, µBGAs, BGAs
and bare dies. 6
For the components which are listed below the GF interpreter in the station computer uses the
default illumination parameters listed in Fig. 6.7 - 12
: 6
– Chips (0402 to 2220)
– Tantalum capacitors (component bodies, non-reflective)
– Melf
– PLCC, QFP, SO, SOJ, TSOP, ICs, power ICs
– Flip-chips, µBGAs, BGAs
– Bare dies
As a rule you will not need to change the illumination parameters for the standard components.6
User Manual SIPLACE F5/F5 HM 6 Vision functions
Software version SR.407.xx 01/2001 US Edition 6.7 Guidelines for Describing Package Forms
381
Fig. 6.7 - 12 Illumination parameters for components on the 6-segment
Collect&Place head camera (DCA-option)
BGA, µBGA
Flip Chip
BGA,
µBGA,
Flip Chip
Power IC
IC
Gullwing
SO, SOT,
TSOP
QFP,
J-Lead
PLCC
Melf
Illumination
level
Brightness
Tantalum
capacitor
General
Reflective
body
150
255
Contrast
sensitivity
Chip
0805 and
larger
0402,
0603
Bare Die
0201,
50
50
50
50
0
50
80
100
230
230
20
20
X plane:
flat:
middle:
steep:
X plane:
flat:
middle:
steep:
X plane:
flat:
middle:
steep:
X plane:
flat:
middle:
steep:
X plane:
flat:
middle:
steep:
X plane:
flat:
middle:
steep:
X plane:
flat:
middle:
steep:
50
50
50
50
200
100
40
40
0
80
50
50
0
0
100
20
0
80
50
50
150
30
0
0
0
0
50
110
X plane:
flat:
middle:
steep:
X plane:
flat:
middle:
steep:
X plane:
flat:
middle:
steep:
Adjusting the illumination of standard components
6 Vision functions User Manual SIPLACE F5/F5 HM
6.7 Guidelines for Describing Package Forms Software version SR.407.xx 01/2001 US Edition
382
6.7.9.4 Testing Illumination Settings
You can set the illumination parameters by calling the ’Illumination’ option (see Section 6.6.4.8 on
page 325
). Using the ’Measure Component Option’ on page 311 you can then measure the com-
ponent and check your settings with the aid of the measurement results. 6
Proceed as follows to test your illumination setting: 6
Å Using the illumination values suggested in Figures 6.7 - 12 carry out measurement. Measure-
ment should run through successfully.
Å For each level reduce the set brightness level by 50 %.
Measurement should run through successfully.
Å For each level raise the set brightness level by 50 %.
Measurement should run through successfully.
If you are not successful with the above procedure, proceed as follows: 6
Å Starting with the suggested illumination value, increase the brightness of each individual illu-
mination level for as long as measurement is still successful.
Å Find this upper limit value for each individual illumination level in turn.
Å Starting with the suggested illumination value, decrease the brightness of each individual illu-
mination level for as long as measurement is still successful. Find this lower limit value for each
individual illumination level in turn.
Å Determine the average value of the upper and lower limit values. This will be the optimum illu-
mination value.
Example of an illumination test: 6
– Settings from the diagram:
X-plane 200
flat: 100
middle: 40
steep: 40
– Measure the component. Measurement is successful.
– Reduce setting values by 50%.
X-plane 100
flat: 50
middle: 20
steep: 20