80S-2080F480F4-680F5 User’s Manual.pdf - 第371页
5 Vision Functions SIPLACE 80S-20/F4/F4-6/F5 User’s Manual 5.7 Guidelines for D escribing Package Form s Edition 03/98 from Software Vers ion SR.404.xx 5 - 150 Line engine er
SIPLACE 80S-20/F4/F4-6/F5 User’s Manual 5 Vision Functions
Edition 03/98 from Software Version SR.404.xx 5.7 Guidelines for Describing Package Forms
Line engineer 5 - 149
– Reset the settings to the suggested values:
X plane: 200
flat: 100
middle: 40
steep: 40
¬ optimum setting
NOTE
With respect to 0402 components, avoid the nozzle being displayed during imaging. If this seems likely,
remove the component from the nozzle and use the ’Illumination Option’ on Page 101 to see whether the noz-
zle did appear in the image.
5.7.9.5 General Information on Setting Illumination Values
– As a rule it is better to overilluminate the component than to underilluminate it. A saturated image is prefer-
able to a low-contrast image.
– Optimum illumination is attained when only the leads are imaged and the component body is not shown.
– If you cannot clearly separate the image of the component body from the leads, we recommend to illumi-
nate body and leads equally and then to measure the outline.
5 Vision Functions SIPLACE 80S-20/F4/F4-6/F5 User’s Manual
5.7 Guidelines for Describing Package Forms Edition 03/98 from Software Version SR.404.xx
5 - 150 Line engineer
SIPLACE 80S-20/F4/F4-6/F5 User’s Manual 5 Vision Functions
Edition 03/98 from Software Version SR.404.xx 5.8 Recommendation for visually centering components
Line engineer 5 - 151
5.8 Recommendation for visually centering compo-
nents
5.8.1 Visually centering flip-chips
5.8.1.1 Entering the data on the line computer
Described the ball radius.
Select tolerances of between 10 % and 20 %.
5.8.1.2 Setting the parameters on the station computer
Under the ’Illumination’ option in the ’Test component’ menu, select the flat illumination plane and set the
brightness values to between 200 and 255. Do
NOT
use transformation tables to do this.
Select a positive ball contrast under the ’Ball image’ option.
PLEASE NOTE:
If a lot of ’non-ball structures’ are identified as ball structures (they can be recognized by the small
crosses), increase the ball contrast. The number of crosses can be estimated in the ’Measure’ menu dur-
ing the grid measurement.
5.8.1.3 Recommended sequence of measurements for flip-chips
Recommended sequence of measurements for visually centering flip-chips
Size measuring mode Grid measuring mode Ball measuring mode
Resolution for calculating the
angle:
low resolution
For single measurement:
3 balls per corner
Standard
ball detection:
Hex value P1 = 80
Fast
ball detection:
Hex value P1 = A0
PLEASE NOTE:
Switch Ball mode off if it is not necessary to measure
all the balls.
In this case, P1 must be set to 80 in Grid mode.
Resolution in the measuring
direction:
medium
For multiple measurement:
5 balls per corner
Resolution
in the integration direction:
medium
Hex value P1 = 80
Tab. 5.8.1 Recommended sequence of measurements for visually centering flip-chips