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How to define ballpads

Nealb over 7 years ago

We would like to write some Ravel programming to measure solder ball to package edge and I am unable to define ballpad and obtain a relation. Is there somehow to do this?

Thanks

Manimaran over 7 years ago

Hi Neal,

you can get all the ballpads from the Ravel predefined relation "ballpad".

Please refer Ravel Manual section 4 for all the ravel predefined relations

http://support.cadence.com/wps/myportal/cos/!ut/p/a0/RcmxDoIwEIDhZ3FgpYTFxKaDibM6MCjbUU9puF7LXUvi28vm9n_5zWgeZmTYwgdKSAy0-_lCzBR4iYFPA_r5XqdL8mpVvMt1UitICIpXiOjsvmpELsM3o4vAFUjt6ppOYEMSfP-rb_tj090yCpQk2s4lkjV5OR9-1q5nlA!!/

here is sample code which measures the distance between component and ballpad

(select (ball_pad comp dist)
       (transform (ball_pad comp) (combine ballpad component)
           (ball_pad comp (distance (center ball_pad) comp))
       )
   (dist < (value MIN_SPACING))
   )
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How to define ballpads

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