Subject: | |
From: | |
Reply To: | |
Date: | Mon, 13 Dec 2004 19:58:18 EST |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
Hi Roger!
I'm going home to Hendersonville, NC...just outside of Asheville...western
part of North Carolina. Blueridge Parkway, Smoky Mountains National Park,
etc... the "pretty" part of North Carolina (in my humble opinion)...
I have to ask though (because our customer will ask it), what is the big
difference between ASTM B-152 and the IPC-4562? The board is rigid, I'm assuming
that they want this heavy copper on these layers to be a heat spreader...
Thanks for your time on this...gotta' ask, are you a "tarheel" too?
-Steve Gregory-
I believe the 14oz layers appear to be thermal planes with epoxy fill
reliefs prior to lamination. There are several board shops that can
manufacture your product. Unfortunately, the issue will be certifying the 14
oz copper to the IPC-4562, most copper vendors that manufacture copper
foils above 10 oz certifies to the ASTM B-152 Standard Specification for
Copper Sheet, Strip, Plate and Rolled Bar and not to the IPC-4562
Hope This Helps !
What part of North Carolina are you flying home to?
Roger Tingler
Methods Engineer
Colonial Circuits
V:800-578-9602 x102
540-752-5511x102
F:800-631-0856
540-752-4832
E-mail: [log in to unmask]
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
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
-----------------------------------------------------
|
|
|