80S-20用户手册 - 第335页

SIPLACE 80S -20/F4 User Manual 6 Vision functions Software version SR.407.xx 01/2001 US Edition 6.6 Test Component 335 Measurement 6 Y ou can choose betwe en the following measu ring methods: 6 – the profi le method for …

6 Vision functions SIPLACE 80S-20/F4 User Manual

6.6 Test Component Software version SR.407.xx 01/2001 US Edition

334

6.6.4.21 ’Ball’ measuring mode

Click on the ’Settings’ button in ’Ball’ measuring mode to call up the ’Ball measuring mode’ menu.6

Fig. 6.6 - 42 ’Measuring mode’ option, ’Ball meas. mode’ menu

This menu can be used to 6

– select the measuring methods listed under ’Measurement’ and

– evaluate the position and presence of balls and carry out a quality analysis.

SIPLACE 80S-20/F4 User Manual 6 Vision functions

Software version SR.407.xx 01/2001 US Edition 6.6 Test Component

335

Measurement 6

You can choose between the following measuring methods: 6

– the profile method for fast analysis or

– the filter method for a more robust measuring method, although this will take longer.

The ’fast’ measuring method is generally sufficient. However, for critical components we recom-

mend the ’robust’ measuring method if the quality is insufficient, for example if the quality factor is

less than 50. 6

Analysis 6

This is used to analyze the position of the balls and to determine whether they are present. It can

also be used to determine the quality of the measurement. The quality of the measurement should

generally be better than 50. 6

If you are placing BGAs, µBGAs or flip-chips with high reproducibility, i.e. if there is very little dif-

ference between the optical parameters of the components, we recommend the following settings

to guarantee fast placement: 6

– Switch off the determination of position / presence for components with large balls and spacing.

The position of the components has already been adequately determined using the grid mea-

surement of 3 balls per corner, and the ball presence analysis is unnecessary.

– Do not activate determination of the quality of the measurement unless you want to detect han-

dling or production errors.

Determination of the position is always necessary if the individual ball positions differ greatly from

the grid structure, i.e. if the individual ball positions are fairly scattered about the desired position.6

6 Vision functions SIPLACE 80S-20/F4 User Manual

6.6 Test Component Software version SR.407.xx 01/2001 US Edition

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6.6.4.22 ‘Set component type’ option (F

)

On the F machine, the ‘Test component’ menu now includes the ‘Set component type’ option. 6

Abb. 6.6.43 ‘Test component’ menu, ‘Set component type’ option (on F machines only)