TECHNET Archives

January 2005

TechNet@IPC.ORG

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
"Crepeau, Phil (Space Technology)" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Crepeau, Phil (Space Technology)
Date:
Mon, 10 Jan 2005 15:57:58 -0800
Content-Type:
text/plain
Parts/Attachments:
text/plain (47 lines)
hi,

if by a visible interface you are talking about different microstructures between the innerlayer foil and the plating in the hole, you are okay.  if you are talking about a black interface between the inner layer foil and the plating in the hole,  you've got a problem.

phil

-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Finks, Tim
(Healdsburg)
Sent: Monday, January 10, 2005 2:15 PM
To: [log in to unmask]
Subject: [TN] Inner layer to barrel connection quality


I have PTH cross-section images which show a visible interface between inner
layer foils and the PTH plating. Earlier, similar, board cross-sections show
no discernable interface - the inner layer foil and the barrel plating
appear to be integral.

What should I see when I have an acceptable PWB?



Regards,

Tim Finks

---------------------------------------------------
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
-----------------------------------------------------

---------------------------------------------------
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
-----------------------------------------------------

ATOM RSS1 RSS2