We occasionally ;-) have to put boards with nomenclature on them through
HASL or immersion tin and never have a problem with the nomenclature...using
Electra ink, although that is not an endorsement.
Tim Reeves

|-----Original Message-----
|From: Lisa Angle [mailto:[log in to unmask]]
|Sent: Thursday, December 21, 2000 12:46 PM
|Subject: Nomenclature with Immersion Tin/Silver
|
|
|All,
|I was wondering how you go about putting nomenclature on
|copper surfaces
|and subsequently processing thru immersion tin or immersion
|silver without
|experiencing nomenclature peel?  I have of course thought of the
|alternative which is to process the boards thru immersion processes and
|subsequently nomenclature them, however, our current inks
|require a long
|cure time and very high temperature which artificially ages
|the finishes.
|Thanks.
|Lisa Angle
|Alternative Surface Finish Engineer
|Teradyne
|

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