It's analogous to the stress at work lately being driven by some Brave
New World/ 1984 Manifest Destiny. I dream one night of living in a
Wigwam with one group of Native Americans and the next night living
across the River of Despair in a Teepee with another group. The Doctor
says that I am currently two tents.

 

The via is tented first with a dry film cap and then again with a LPI
SMOBC. Material and process is qualified. Any cracks or opens of the
tent is a non-conformance.

 

The via is filled and then plated-over with copper and then covered with
a LPI SMOBC or HASL if via in pad is used. 

 

Two tents. Like I said.

Dewey

 

________________________________

From: [log in to unmask] [mailto:[log in to unmask]] 
Sent: Friday, May 11, 2007 11:51 AM
To: Whittaker, Dewey (EHCOE)
Subject: Re: [TN] ENIG in Vias

 

Hi Dewey,
Smart strategy. What exactly is a "via protection strategy"?



Werner



**************************************
See what's free at http://www.aol.com.


---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
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
-----------------------------------------------------