I use the same rule a micro-pitch devices. If the lead spacing is .5mm (.01968) or less, it gets fiducial(s).
Check w/ your assy house to see what they want / can do.
Michael Kuczynski Sr. Designer/Librarian
Philips Components LCOS Project
345 Scarborough Rd. 1-914-945-6346 (Ph)
Briarcliff Manor, NY 10510-2099 1-914-945-6798 (Fax)
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