One of our customers is asking for IPC specifications for electroplated
tin lead. My sense is that plated tin lead may not be specified by IPC
as it is an intermediate step in PWB fabrication. Intermediate in that
tin lead may be used as an etch resist that is later fused to produce  a
solder finish, subjected to HASL and replaced in the process, or
stripped for the application of another surface finish like ENiG.

Is there a specification for tin lead plating and, if so, can someone
direct me to the appropriate document?

Sincerely,

Paul Reid

Program Coordinator

PWB Interconnect Solutions Inc.
235 Stafford Rd., West, Unit 103
Nepean, Ontario
Canada, K2H 9C1

613 596 4244 ext. 229
Skype paul_reid_pwb
[log in to unmask] <mailto:[log in to unmask]>


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