00192662-01.pdf - 第350页

6 Vision functions User Manua l SIPLACE F5/F5 HM 6.6 Test Co mponent Software version SR. 407.xx 01/2001 US E dition 350 6.6.4.22 ‘ Set component type ’ opt ion On the F machi ne, the ‘ T est com ponent ’ me nu now inc l…

User Manual SIPLACE F5/F5 HM 6 Vision functions

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

349

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 User Manual SIPLACE F5/F5 HM

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

350

6.6.4.22 ‘Set component type’ option

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)

User Manual SIPLACE F5/F5 HM 6 Vision functions

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

351

The following button appears when this option is selected. 6

Abb. 6.6.44 ‘Test component’ menu, ‘Set component type’ option

Select this option if centering errors occur with standard lighting. These 4 selection

options enable you to match the illumination perfectly to the component to be placed. All these

options provide specific combinations of the flat, average, and steep methods of illumination. 6

Mouse functions 6

Å Use the mouse to highlight the component type.

Å Click on ‘OK’ to confirm your input. The option box will close, and you will return to the ‘Test

component’ menu.

Å Click on ‘Cancel’ to leave the option box without making any changes.