They are also necessary on the stencil to print the solder paste so that
the printing equipment can find the fiducial and align the board.
Again, as Ioan says...they are so necessary....they are also called out in
IPC 7525 Stencil Design Guidelines...

Kathy

At 08:43 AM 11/4/03 -0500, you wrote:

>They're so necessary that they're even standardized. Check
><http://www.smema.org/smema3.1.pdf>http://www.smema.org/smema3.1.pdf
>
>Regards,
>Ioan
> > -----Original Message-----  > From: Sivaraja K Chakka
> [SMTP:[log in to unmask]]  > Sent: Tuesday, November 04, 2003
> 6:41 AM  > To:   [log in to unmask]  > Subject:      [TN]  >  > Hi,  >  >
> Can any one explain the necessity of fiducical!  >  > Regards  >
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