Subject: | |
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Date: | Thu, 14 May 2009 21:36:58 +0200 |
Content-Type: | text/plain |
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Thanks Richard,
you've become my gold mine many a times.
How can I do something for you?
Inge
----- Original Message -----
From: "Stadem, Richard D." <[log in to unmask]>
To: <[log in to unmask]>; "Inge" <[log in to unmask]>
Sent: Thursday, May 14, 2009 9:14 PM
Subject: RE: [TN] Seam welding
http://books.google.com/books?id=wyzY9ap1SQkC&pg=PA392&lpg=PA392&dq=seam
-welding+multichip+module&source=bl&ots=us1czQT9BW&sig=-K482NZQJEIrgetub
uxdH-Vc1FA&hl=en&ei=M20MSqvSI96ptgepwombCA&sa=X&oi=book_result&ct=result
&resnum=1#PPA390,M1
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Inge
Sent: Thursday, May 14, 2009 1:39 PM
To: [log in to unmask]
Subject: [TN] Seam welding
I'm creating instructions for design engineers, purchasers and
operators
about seamwelding MCM packages. About AlSiC ones, electroless Nickel is
preferred by experts around. However, I mean electrolytic Nickel minimum
5um
is better. I have tried Sulfamate halfbright on both lid and package.
Lids
are typically 0.5 mm thick with 12% Si added. However, I've no
recommendations for wheel angle.Anyone who got experience? 5, 10, 15
degrees
or what? Machine makers have nothing on AlSiC.
Inge
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Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
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