Pascal
Aren't you concerned about the toxicity of replacements for lead?
How about all the new lead mined along with the increased tin and silver, needed for
lead-free solder?
Don't you care about the miners? Lead supplies are so abundant and cheap and so easily
recycled, that lead is hardly ever mined as an end-product today.
Industrial ecology studies have shown that banning lead in solder is a negative for the
environment because of these factors plus increased CO2 emissions and increased energy use
Lead in gasoline is ultimately inhaled by people.
Lead in paint may be eaten by babies.
But how does lead in solder threaten anyone-- where's the evidence that it does.
I am told that many very smart companies and very smart people are ignoring the entire
lead-free business or giving token lip service with tongue in cheek.
It is a business, just as Y2K was a business. Like Y2K it's a business with very limited
life.
I'll wager anyone a bottle of French wine that by 2010, the subject of lead-free solder
will be a forgotten embarrassment. I'm starting to dig my cellar now.
Harvey Miller
----- Original Message -----
From: "Pascal Guiheneuf" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, July 02, 2004 12:35 PM
Subject: Re: [LF] tin pest
I didn't sign off as a Nortel representative here. But you are right, no
telecom exemption for Nortel. Otherwise, where to find the components we
will need ? Did you see all the research made on lead-free by spatial,
military, automotive, medical ! Everybody needs components from the
commercial market now. By another way, our european customers wonder more
and more about our environmentally-friendly attitude. No way for exemption.
Cordially,
Pascal Guihéneuf
-----Original Message-----
From: John Burke [mailto:[log in to unmask]]
Sent: vendredi 2 juillet 2004 21:15
To: Guiheneuf, Pascal [CTF:6257:EXCH]; '(Leadfree Electronics Assembly
Forum)'; John Burke
Subject: RE: [LF] tin pest
I presume then that Nortel will NOT be taking an exemption under the ROHS
annex covering internet infrastructure??..........................or are you
on a more philosophical discussion?/
John
-----Original Message-----
From: Pascal Guiheneuf [mailto:[log in to unmask]]
Sent: Friday, July 02, 2004 11:45 AM
To: '(Leadfree Electronics Assembly Forum)'; 'John Burke'
Subject: RE: [LF] tin pest
In france we have a popular expression "avoir du plomb dans la tete", maybe
translated by "having lead in head". Coming from the "lead poisoning"
disease, it describes somebody stupid. Lead is hazardous, and especially for
children. It attacks the brain.
In 1973, lead was banned from gazoline, in 1978 from paints, beginning of
XXI century from all water pipes (they have to be changed before 2010 or
something like that in Europe), now it is time for electronics.
Lead has to be removed, and solutions to issues will be found by people with
functioning brain.
Cordially,
Pascal
-----Original Message-----
From: John Burke [mailto:[log in to unmask]
<mailto:[log in to unmask]> ]
Sent: vendredi 2 juillet 2004 19:04
To: [log in to unmask]
Subject: Re: [LF] tin pest
Wouldn't that be a story:
"A team of Antarctic researchers investigating effects of electronics
manufacturing on the ozone layer were stranded today when their GPS system
malfunctioned. The malfunction is thought to be associated with the removal
of lead from the solder"..................8-)
John
-----Original Message-----
From: MA/NY DDave [mailto:[log in to unmask] <mailto:[log in to unmask]> ]
Sent: Friday, July 02, 2004 9:37 AM
To: [log in to unmask]
Subject: Re: [LF] tin pest
Hi Jim, Tyco-Bob, Jean-Paul, and IPC LF Listservers,
<Thank you for your response. Like many other issues in this Lead-Free
transition, it sounds as if "tin pest" has been overblown.>
I am not sure YET that the issue is overblown. I believe that based on the
environments of certain products or certain product life conditions that we
may see this selectively in real life applications. In June Tin's KayN
(Soldertec) did respond to us that ITRI has not seen any effect and
privately others have also written to me that they have yet to see any
effect.
My first guess is product that has to survive continual cold temperatures
like in the Artic or in refrigerator/freezers where -40C/-40F is common or
in other applications like thermoelectric coolers.
As for a nucleation site for the transformation to get started, I am less
clear of how that all happens. More Study, or the Luck of being an IPC LF
Listserver is needed.
If you look at the UK's Open University Report it seems obvious that we will
see this under certain conditions. The sample just had too too much Tin Pest
to be a coincidence.
Yours in Engineering, Dave
Y i Engr, MA/NY DDave
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