Copied from USAF solder advisory dated May this year:
DEPARTMENT OF THE AIR FORCE AA-05-01
Headquarters Aeronautical Systems Center (AFMC) 9 May 2005
Engineering Directorate
Wright-Patterson AFB OH 45433-7101
AIRWORTHINESS ADVISORY
Lead-Free Solder
PURPOSE:
This Airworthiness Advisory provides information on the trend within the
electronics manufacturing community toward the use of lead (Pb)-free solder.
To date, no lead-free solders are known to have met the reliability
requirements imposed upon military electronics. At the same time, many
electronic items being acquired by the United States Air Force (USAF) and
Department of Defense (DoD) may already contain lead-free solder due to
electronics manufacturers' use of solely lead-free solder
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Avanex
John Burke
Senior Manager RoHS Compliance
[log in to unmask]
40919 Encyclopedia Circle
Fremont
CA 94538
tel: 510 897 4250
fax: 510 979 0189
mobile: 510 676 6312
------------------------------------
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]]On Behalf Of Smith, Rick
Sent: Wednesday, August 03, 2005 2:17 PM
To: [log in to unmask]
Subject: Re: [LF] 96.5% Tin / 3.5% Silver vs. SAC305
Why hasn't NASA or the Airforce ever complained about this?
Seems to me they have specified use of the Sn96 and Sn96.5 alloy on many
programs for many years??
Rick Smith
Senior Product/ Component Engineer
Phone: (512)652-3544
Fax: (512)652-3545
Cell: (512)299-6925
Email: [log in to unmask]
ClearCube Technology, Inc
8834 Capital of Texas Hwy N
Austin, TX 78759
www.clearcube.com
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of David Suraski
Sent: Wednesday, August 03, 2005 1:50 PM
To: [log in to unmask]
Subject: Re: [LF] 96.5% Tin / 3.5% Silver vs. SAC305
... and don't forget the silver phase change problems and poorer
mechanical fatigue resistance as compared to Sn/Ag/Cu.
Regards,
David Suraski
AIM
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of MA/NY DDave
Sent: Wednesday, August 03, 2005 2:38 PM
To: [log in to unmask]
Subject: Re: [LF] 96.5% Tin / 3.5% Silver vs. SAC305
Hi KEDS-Rich, John, SPVC, IPC LF Listservers
Stopping for a minute on this fun discussion/learning experience.
If you decide to use 96.5Sn you do know that your soldering temperature
will be higher and you might have component MSL problems. I know it is
only a few degrees yet you don't have lots of margin on some of your
products.
YiEngr, MA/NY DDave
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---Leadfee Mail List provided as a service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Leadfree
To temporarily stop/(start) delivery of Leadree for vacation breaks send:
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Search previous postings 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
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-------------------------------------------------------------------------------Leadfee Mail List provided as a service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Leadfree
To temporarily stop/(start) delivery of Leadree for vacation breaks send: SET Leadfree NOMAIL/(MAIL)
Search previous postings 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
-------------------------------------------------------------------------------
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