LISTSERV - TECHNET Archives - LISTSERV.IPC.ORG

TECHNET Archives

October 2004

TechNet@IPC.ORG

	LISTSERV Archives
	TECHNET Home
	TECHNET October 2004

	Log In
	Register

	Subscribe or Unsubscribe

	Search Archives

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 >>]

Subject:	Re: Gold Board
From:	Ed Hare <[log in to unmask]>
Reply To:	[log in to unmask]
Date:	Wed, 27 Oct 2004 07:27:55 -0700
Content-Type:	text/plain
Parts/Attachments:	text/plain (50 lines)

Ken,

Yes, there most definitely is a concern.  The wt% gold must be kept below ~
3 wt% or the volume fraction of AuSn4 will be too high in the joint causing
gold embrittlement.

Ed Hare
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Bloomquist, Ken
Sent: Wednesday, October 27, 2004 6:53 AM
To: [log in to unmask]
Subject: [TN] Gold Board


Good morning TechNetters (at least here on the left coast),

We have a small assembly that requires a couple of pads to be gold plated.
We would like to gold plate the entire board but we're concerned about gold
embrittlement when we solder the components in. The board is completely
through hole and will be both wave soldered and hand soldered.

Do you think we have any concerns? Oh by the way this is a class 3 assembly.

Thanks,

KennyB

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

LISTSERV.IPC.ORG