Hi Ken,
You sure have quite a mish-mush.
There is no such thing as IPC-SM-750.
IS410 is an Isola lead-free capable base material as is 370 HR [originally from Polyclad]
Tg and Td are material properties important for being lead-free capable/
IPC 4101 is an IPC document in its C revision, /129, /24 and /26 are base material categories.
IPC-A-600 is an assembly spec.
If your drawing has nothing but it on it, your PCB is inadequately specified.
In order to understand all of this and how it hangs together, you may want to get my White Paper [see my website].
Regards,
Werner Engelmaier
Engelmaier Associates, L.C.
Electronic Packaging, Interconnectionand Reliability Consulting
7 Jasmine Run
Ormond Beach, FL 32174 USA
Phone: 386-437-8747, Cell: 386-316-5904
E-mail: [log in to unmask], Website:www.engelmaier.com
-----Original Message-----
From: Ken Barton <[log in to unmask]>
To: [log in to unmask]
Sent: Fri, Jul 2, 2010 12:31 pm
Subject: [TN] MIL-S-13949/EPS0606/IPC-1710 etc
Good day helpful gurus,
I am the lone PCB layout person working at a new company with
outdated/obsolete (MIL0S-13949 for example) fab drawing notes. Our PCB fab
vendor's cert of compliance states that out boards are built per:
SM-750/IS410/370HR Tg180 C Td 350 (IPC 4101/129, IPC 4101/24.26, IPC 4552
for immersion gold.
The only IPC reference/spec on our drawings is A-600.
Please recommend which IPC standards to purchase that refer to/specify
standards for class III aerospace type PCBs, and if anyone can fill me in on
EPS0606, I'm not getting very far with the web search.
Thanks,
Ken Barton
Luma Technologies
(425) 643-4000 x304
[log in to unmask]
Visit us at www.lumatech.com
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