that is what we have on our drawings..... Alternate finish_____Immersion
Silver.
We leave the thickness up to the process, although we know what it should be
there are two manufacturers with different thick nesses, both work for us.
Dave C.
-----Original Message-----
From: Franklin [mailto:[log in to unmask]]
Sent: Friday, July 02, 2004 1:08 PM
To: [log in to unmask]
Subject: Re: [TN] Specifying PWB Finishes
What we see coming in, and suggest to our customers making this transition
is to simply state what you wrote.
Finish: Immersion Tin
or
Finish: OSP
We take care of the rest...
As for thickness requirements, well you really can't under or over plate
these two finishes very easy...
Franklin
----- Original Message -----
From: "Kane, Joseph E" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, July 01, 2004 4:04 PM
Subject: [TN] Specifying PWB Finishes
> We're preparing to order some test boards with alternative finishes for
> lead-free
> testing, including immersion tin and OSP over bare copper. Can anyone
> suggest
> how we might specify these board finishes in a drawing note? Our existing
> drawings pretty much specify only the material and the thickness,
something
> like "immersion gold, xxx thick, over electroless nickel, xxx thick."
>
> Joe Kane
> BAE SYSTEMS Controls
> Johnson City, NY
>
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