Subject: | |
From: | |
Reply To: | TechNet E-Mail Forum. |
Date: | Thu, 3 Oct 2002 11:27:01 -0700 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
Franklin,
Here are some considerations:
7629 single-ply 2113 two-ply
cost lower higher
dimensional stability better worse
dielectric constant higher lower
drilling quality better
resin fill adjacent layers better
thickness after lamination 7.5 mils <7.0 mils (2313 = 7.0)
availability fair (7628 good) poor (2313 good)
dielectric thickness consistency better
Some of this info is in IPC-4121.
So figure out which criteria are more important, and then try to choose the best option.
If you've already got the 2113 and 7629, the availability is not an issue.
Note that there *not* going to come out with quite the same thickness.
Hope this helps.
Timothy Reeves
Technical Service Engineer - Matsushita Electronic Materials, Inc.
4114 Heather Street, Forest Grove, Oregon, 97116
Main (503) 357-8695 Direct (503) 992-5109 Cell (503) 781-1495 Fax (503) 357-8868
-----Original Message-----
From: Franklin D Asbell [mailto:[log in to unmask]]
Sent: Wednesday, October 02, 2002 2:03 PM
Subject: Advantages of 2113 over 7629
I need some input on any advantages, or disadvantages of using a single
sheet of 7629 versus multiple sheets of 2113 in the same application(s).
Any input would be greatly appreciated.
Franklin D Asbell
---------------------------------------------------------------------------------
Technet Mail List provided as a free 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/html/forum.htm for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
---------------------------------------------------------------------------------
---------------------------------------------------------------------------------
Technet Mail List provided as a free 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/html/forum.htm for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
---------------------------------------------------------------------------------
|
|
|