I have found that regardless of what IPC states, you should check with your
assembly house to find out what they require.
Each assembly house will be specific to their equipment capabilities
regarding size, shape and plane and mask clearance.

> -----Original Message-----
> From: [log in to unmask]
> [SMTP:[log in to unmask]]
> Sent: Thursday, July 01, 1999 8:21 AM
> To:   [log in to unmask]
> Subject:      [TN] FIDUCIAL SURVEY
>
> To all,
>
> What is the recommended size and shape of a fiducial?
> I believe I.P.C. recommends 0.040" round.
>
> What are your thoughts?
>
> Frustrated