[ List Subjects ][ Current Board ][ Post Message ]
Subject: Re: Fiducial Mark
[ View Followups ][ Post Followup ]
Date: 01/19/02 at 2:32 PM
Posted by: James Whitehouse
In Reply to: Fiducial Mark posted by Kevin Chan on 01/11/02 at 11:12 PM:
Depends on the machines vision system, some prefer crosses, others prefer double crosses etc.. but all of those I know will work with just about anything.
You just have to try it out. One thing I have noticed though, is that certain flip chip and BGA manufacturers use crosses at opposite corners of the component. This is really good to use instead of spending a lot of time defining the whole component in the vision system.
Post a Follow-up: