TECHNET Archives

November 2009

TechNet@IPC.ORG
Options: Use Monospaced Font
Show Text Part by Default
Condense Mail Headers

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

Print Reply
Sender:
TechNet <[log in to unmask]>
X-To:
"[log in to unmask]" <[log in to unmask]>
Date:
Mon, 2 Nov 2009 21:17:23 -0500
Reply-To:
TechNet E-Mail Forum <[log in to unmask]>, Chris Mahanna <[log in to unmask]>
Subject:
IAu hardness
MIME-Version:
1.0
Content-Transfer-Encoding:
quoted-printable
Content-Type:
text/plain; charset="us-ascii"
From:
Chris Mahanna <[log in to unmask]>
Parts/Attachments:
text/plain (21 lines) 
Please help a simple EE.

From bare printed boards we are receiving nano-identation (hardness) values for hard (I assume Cobalt) gold in the 3000 MPa range.  Quick and dirty conversion yields ~300 Knoop/Vickers; right?
That sounds reasonable.

BUT, we're getting 6500 MPA for the ENIG.  Is this even possible?  Does anyone know if it is an indication of poor IAu?  Or maybe a poor nano-indentation tester?

Thanks,
Chris


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

ATOM RSS1 RSS2