Fred,
I talked to one of our board houses (Prototron Circuits) and they where
saying that lead free won't really affect the board designer, it primarily
affects manufacturing. Manufacturing may request a different finish for the
pads to get a better solder joint and at that time we can talk to our board
houses regarding other finishes and select a different finish.
Sounds like when we go to lead free it will be a time of trial and error, if
anything changes at all.
Ray Johnston
Lead CAD Designer
Rane Corporation
425-355-6000
rayj@rane,com
----- Original Message -----
From: "Fred Dark" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, October 04, 2004 10:00 AM
Subject: [DC] Lead-Free Fab_notes
> Dear Designer Council, I'm looking to get some information on "Lead-Free"
> technology... from a PCB designers point of view, what would I have to do
> different for design and documentation... how would my fabrication notes
> change for this technology... For a standard Fr-4 material, would this
> have to be different... along with finishes and etc... I know there is a
> lot of manufacturing issues with solder paste, solder temp. and more, but
> from a designers point of view, what will I have to do different... I'm
> reading up on the technology, but I'm not seeing what to do as far as from
> a designers point of view... Can someone point me in the right direction
> for notes, books from a designers point of view... and what ever other
> info that I would need to know...
>
> Thank's as always, Fred Dark Jr.
>
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