Quitin,
When you state 'Lead Free is evil' you are also stating a sort of political
and personal view point. It seems this forum has been taken over (partly) by
anti-LF folks. When you look at the data presented at various conferences
and study the published material it seems that:
1. LF is better than SnPb when stresses are low and medium intensity.
( A large majority of product applications fall in this category)
2. Under highly stressed conditions like aviation, SnPb joints are
better LF joints.
Several papers on LF reliability and comparison with SnPb joints by people
like Dr. John-Paul Clech, Dr Craig Hillman, K. Sweatman of Nihon Superior
and others have stated these observations. Dell has shipped > 30 million LF
products of various types (notebooks, Desktops, Displays and Printers) as
mentioned by Dr. Randy Schueller. These products are performing as well as
SnPb products or better according to him (November 2006 CTEA presentation at
Austin, Texas).
In any new technology, there are problems initially which are resolved as we
learn more about related design, material and processing issues.
No body is being forced to go LF. It is a simple business decision; if one
wants to play in global economy then one has to follow what the customer (an
individual, a company or a country) wants. If US companies think LF is not
in their interest, they can continue SnPb production and simply sell the
product in US market only and not in EU.
Have a good day!
pratap singh
____________________________________
Tel/Fax: 512-255-6820; Cell: 512-663-8903
EMail: [log in to unmask]
-------------------------------------------------------------------------------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
-------------------------------------------------------------------------------
I agree. But I think we could do better to avoid it the next time
around by carrying on those discussions in political or environmental
forums, since while we're all trying to make this stuff work, the
politicians are busy passing laws about things they don't know enough
about, and the environmentalists are busy influencing politicians to
pass those types of laws.
My point is, (and I should have been clearer in my original response),
that the people we really need to convince this is a bad idea aren't in
this group; they are in political, environmental, and consumer groups.
I suggest we each corner an environmentalist and convince him or her
about the evils of lead-free solder.
'Nough said.
Quintin Larson
Production Engineering
Sanmina-SCI Corp
222 Disk Drive
Rapid City, SD 57702
ph 605-737-3789
fx 605-394-6287
-----Original Message-----
From: Brian Epstein [mailto:[log in to unmask]]
Sent: Monday, December 04, 2006 5:09 PM
To: Larson, Quintin; (Leadfree Electronics Assembly Forum)
Subject: RE: [LF] JCAA/JGPP Lead-Free Solder Project summary
Quintin,
I share your concerns. It might be instructive, however, to understand
how we got into this mess to avoid doing it again, though I am
discouraged by the poor record of the human race to learn from its
mistakes.
Regards,
Brian Epstein
Sr Regulatory Compliance Engineer
Veeco Instruments
ph: 805-967-2700 ext 2315
fx: 805-967-7717
ce: 805-591-9587
-----Original Message-----
From: Larson, Quintin [mailto:[log in to unmask]]
Sent: Monday, December 04, 2006 4:04 PM
To: (Leadfree Electronics Assembly Forum); Brian Epstein
Subject: RE: [LF] JCAA/JGPP Lead-Free Solder Project summary
Brian,
Sorry if I offended you, that wasn't my intent. I was merely trying to
avoid a discussion of why we're in this lead-free boat to begin with.
Since it's already upon us, it pretty much doesn't matter how we got
here, only how we get out. Hopefully the industry will be more
proactive the next time something like this comes up.
Again, my apologies.
Quintin Larson
Production Engineering
Sanmina-SCI Corp
222 Disk Drive
Rapid City, SD 57702
ph 605-737-3789
fx 605-394-6287
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of Brian Epstein
Sent: Monday, December 04, 2006 4:35 PM
To: [log in to unmask]
Subject: Re: [LF] JCAA/JGPP Lead-Free Solder Project summary
I was not politicking. I made a statement of fact. I abhor scientific
obstruction or tampering from any party.
Regards,
Brian Epstein
Sr Regulatory Compliance Engineer
Veeco Instruments
ph: 805-967-2700 ext 2315
fx: 805-967-7717
ce: 805-591-9587
-----Original Message-----
From: Larson, Quintin [mailto:[log in to unmask]]
Sent: Tuesday, November 28, 2006 7:25 AM
To: (Leadfree Electronics Assembly Forum); Brian Epstein
Subject: RE: [LF] JCAA/JGPP Lead-Free Solder Project summary
This is a technical forum. Can we PLEASE keep politics out of it?
Quintin Larson
Production Engineering
Sanmina-SCI Corp
222 Disk Drive
Rapid City, SD 57702
ph 605-737-3789
fx 605-394-6287
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of Brian Epstein
Sent: Monday, November 27, 2006 4:38 PM
To: [log in to unmask]
Subject: Re: [LF] JCAA/JGPP Lead-Free Solder Project summary
Attempts to stifle research whose findings differ from a political
position have happened for a long time. The Bush administration has
been guilty of these activities to a far greater extent than previous US
administrations. I expect future administrations to be less likely to
stifle research, but I expect the practice to continue.
Regards,
Brian Epstein
Sr Regulatory Compliance Engineer
Veeco Instruments
ph: 805-967-2700 ext 2315
fx: 805-967-7717
ce: 805-591-9587
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of Werner Engelmaier
Sent: Saturday, November 18, 2006 10:43 AM
To: [log in to unmask]
Subject: Re: [LF] JCAA/JGPP Lead-Free Solder Project summary
Hi Timothy,
Unfortunately you are wrong when you say "NIST has been doing good
things,
but they are a technical outfit somewhat shielded from the politics
(unfortunately, and fortunately)."
I know of good people that had to leave NIST because their technical
findings
in an investigation did not align with the prevalent political view.
Werner
------------------------------------------------------------------------
-------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
------------------------------------------------------------------------
-------
------------------------------------------------------------------------
-------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
------------------------------------------------------------------------
-------
________________________________________________________________________
_____
Scanned by Sanmina-SCI eShield
________________________________________________________________________
_____
CONFIDENTIALITY
This e-mail message and any attachments thereto, is intended only for
use by the addressee(s) named herein and may contain legally privileged
and/or confidential information. If you are not the intended recipient
of this e-mail message, you are hereby notified that any dissemination,
distribution or copying of this e-mail message, and any attachments
thereto, is strictly prohibited. If you have received this e-mail
message in error, please immediately notify the sender and permanently
delete the original and any copies of this email and any prints thereof.
ABSENT AN EXPRESS STATEMENT TO THE CONTRARY HEREINABOVE, THIS E-MAIL IS
NOT INTENDED AS A SUBSTITUTE FOR A WRITING. Notwithstanding the Uniform
Electronic Transactions Act or the applicability of any other law of
similar substance and effect, absent an express statement to the
contrary hereinabove, this e-mail message its contents, and any
attachments hereto are not intended to represent an offer or acceptance
to enter into a contract and are not otherwise intended to bind the
sender, Sanmina-SCI Corporation (or any of its subsidiaries), or any
other person or entity.
________________________________________________________________________
_____
Scanned by Sanmina-SCI eShield
________________________________________________________________________
_____
------------------------------------------------------------------------
-------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
------------------------------------------------------------------------
-------
________________________________________________________________________
_____
Scanned by Sanmina-SCI eShield
________________________________________________________________________
_____
CONFIDENTIALITY
This e-mail message and any attachments thereto, is intended only for
use by the addressee(s) named herein and may contain legally privileged
and/or confidential information. If you are not the intended recipient
of this e-mail message, you are hereby notified that any dissemination,
distribution or copying of this e-mail message, and any attachments
thereto, is strictly prohibited. If you have received this e-mail
message in error, please immediately notify the sender and permanently
delete the original and any copies of this email and any prints thereof.
ABSENT AN EXPRESS STATEMENT TO THE CONTRARY HEREINABOVE, THIS E-MAIL IS
NOT INTENDED AS A SUBSTITUTE FOR A WRITING. Notwithstanding the Uniform
Electronic Transactions Act or the applicability of any other law of
similar substance and effect, absent an express statement to the
contrary hereinabove, this e-mail message its contents, and any
attachments hereto are not intended to represent an offer or acceptance
to enter into a contract and are not otherwise intended to bind the
sender, Sanmina-SCI Corporation (or any of its subsidiaries), or any
other person or entity.
________________________________________________________________________
_____
Scanned by Sanmina-SCI eShield
________________________________________________________________________
_____
________________________________________________________________________
_____
Scanned by Sanmina-SCI eShield
________________________________________________________________________
_____
CONFIDENTIALITY
This e-mail message and any attachments thereto, is intended only for use by
the addressee(s) named herein and may contain legally privileged and/or
confidential information. If you are not the intended recipient of this
e-mail message, you are hereby notified that any dissemination, distribution
or copying of this e-mail message, and any attachments thereto, is strictly
prohibited. If you have received this e-mail message in error, please
immediately notify the sender and permanently delete the original and any
copies of this email and any prints thereof.
ABSENT AN EXPRESS STATEMENT TO THE CONTRARY HEREINABOVE, THIS E-MAIL IS NOT
INTENDED AS A SUBSTITUTE FOR A WRITING. Notwithstanding the Uniform
Electronic Transactions Act or the applicability of any other law of similar
substance and effect, absent an express statement to the contrary
hereinabove, this e-mail message its contents, and any attachments hereto
are not intended to represent an offer or acceptance to enter into a
contract and are not otherwise intended to bind the sender, Sanmina-SCI
Corporation (or any of its subsidiaries), or any other person or entity.
____________________________________________________________________________
_
Scanned by Sanmina-SCI eShield
____________________________________________________________________________
_
----------------------------------------------------------------------------
---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
----------------------------------------------------------------------------
---
-------------------------------------------------------------------------------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
-------------------------------------------------------------------------------
|
