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May 2005

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Fri, 27 May 2005 10:02:30 -0400
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Dave Seymour <[log in to unmask]>
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All,

The IPC draft IPC-4553 spec listed below mentions two types of valid
silver plating.
Thin 3-5 micro inch and Thick as 8-12 micro inch.

What are board fabricators typically using Thin or Thick?

Also, I saw a presentation from a board shop  recently
with Silver thickness up to 25 micro inch.

It that too thick?

What is too Thick?

Thanks in advance,
Dave Seymour


Gerard O'Brien wrote:

>There is a new spec that has just completed balloting - IPC-4553. Ken, you
>can go the  committee home page 4-14 at ipc.org and find a copy of the draft
>that will soon be released.
>
>Regards
>
>
>Gerard O'Brien
>Co-chairman 4-14
>
>-----Original Message-----
>From: Ken Patel [mailto:[log in to unmask]]
>Sent: Wednesday, March 09, 2005 1:51 PM
>To: [log in to unmask]
>Subject: [TN] Immersion Silver - Fab notes
>
>All,
>What kind of note should I put on fab drawing if I
>want to use Immersion Silver as my surface finish. Is
>there any IPC- document that also I can refer to as
>part of my note.
>
>Any help will be appreciated.
>
>re,
>ken patel
>
>
>
>
>__________________________________
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--
Dave Seymour, CID+
Catapult Communications Inc.
800 Perimeter Park Dr, Suite A
Morrisville, NC 27560

Direct: (919)653-4249
Main: (919)653-4180
Fax: (919)653-4297

[log in to unmask]

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