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Date: | Thu, 10 Jan 2008 14:53:38 -0600 |
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I know that some of you had discussion about this topics on the forums,
but I just wanted to verify that when we are talking about Pb-free HASL
we are talking about Immersion Tin finish. Correct? Or are there other
Pb-free HASLs that are different? Are there different products such as
matte finish Pb-free HASL versus some other type of Sn finish?
And is there an IPC standard for Pb-free HASL?
I am not talking about RoHS -compatible finishes, such as ENIG, ENEPIG,
IAg, OSP, etc., just lead-free HASL finishes.
Is there a Pb-free fused tin finish?
What standards are being developed or have been developed for Immersion
Tin finishes? I could not find any at IPC.org, but I may have missed
them. I know of IPC 4552 for ENIG, 4553 for Immersion Silver, etc. but
could not find a similar standard for Immersion Tin finish.
Thanks for any help you can provide.
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