No need to reply, Jim.
Just wanted to make sure you're in my address book.
Harvey Miller
FABFILE-ON-LINE
255 TOWN & COUNTRY VILLAGE
PALO ALTO CA 94301
[log in to unmask]
(650) 327-2029
Below is in today's CIRCUITNET.COM
Harvey,
Your response is very well written and well put - good job.
Thanks for your continued support of Circuitnet.
Regards,
Ron
Ron Daniels
Editor, Circuitnet
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(770)592-3596
For a Free Subscription and to Review Today's Headlines:
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-----Original Message-----
From: Harvey Miller [mailto:[log in to unmask]]
Sent: Tuesday, July 01, 2003 2:57 PM
To: [log in to unmask]
Subject: Re inevitability of laws: Man vs. Nature on Lead-free Solder
(slightly revised)
Ron
Your comments re lead-free solder "inevitability" are precious. By decree of
the European Union Parliament, in mid-2006, the process of phasing out lead
in solder shall begin. All concerned should face up to this reality and
begin the process sooner.
You, correctly in my opinion, point out some of the reliability and
environmental downsides of lead-free solder. One might extend the argument
further. There is much question whether, beyond 2 years in a benign
environment for cell phones and laptops, whether lead-free solder will
"work". Just read the painful and pained comments on IPC's lead-free forum
or the moisture absorption tests by NEMI, etc. etc., etc. Bottom line, we
may have another case where Man decrees, but Nature decrees the opposite.
Added to the force of Nature are powerful divergent economic interests which
usually determine the practical course of events before Nature has her final
way.
History provides many examples. The Volstead Act of 1920 prohibited sale
and distribution of alcoholic beverages in the U.S. Many fortunes were made
violating that stupid law, happily repealed by Franklin Roosevelt's
administration in 1933. In 1773, the British King and Parliament tried to
help the East India Company dump its surplus tea on its American colonies.
The Tea Act didn't live long enough to be tested, because His Majesty's
Colonies ceased to be HMC's. So who are really the protagonists in the
Lead-free Solder War of 2006? What will be the ultimate outcome?
The European Parliament rules by a command structure, by commission, from
the top down. It was so constructed because of a 2000 year history of
conflicts. It was a noble attempt to paper over persisting conflicts of
interest. Enfocement of its laws is a real problem. The recent rifts between
"old" and "new" Europe highlighted how weak is the Union. (I was on Old
Europe's side re Iraq invasion.) The Eurpean Union and her Parliament are
still young, works in progress, and I wish them well.
Many egos and many commercial interests are now mobilized, so many that
lead-free solder does indeed appear "inevitable". In a longer run, "egos"
disappear from the scene, along with their owners, and "commercial
interests" are amazingly ephemeral in the light of newer realities.
So what might happen between July 2003 and July 2006 to make "inevitable"
not inevitable. Some possible scenarios follow. When World Electronic
Commerce is impaired, will there be actions before the World Trade
Organization by damaged parties? Will the business press finally hear the
sensible messages from Ron Daniels of Circuitnet?
Will respnsible environmentalists begin to question the damming impacts of
more copper and silver and CO2 from lead-free? Will there be more
exemptions, compromises, face-saving?
Harvey Miller
FABFILE-ON-LINE
255 TOWN & COUNTRY VILLAGE
PALO ALTO CA 94301
[log in to unmask]
(650) 327-2029
----- Original Message -----
From: "Jim Smith" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Sunday, June 22, 2003 11:35 PM
Subject: Re: [LF] VS: [LF] Reliability Testing
> I just perused the JG-PP document at the link kindly provided by Havia.
> Reading through, I was struck by several items.
>
> First, the DoD is getting sucked into the lead-free irrational ideology;
> I read through the list of high-tech killing machines (attack jets,
> etc.) and couldn't help chuckling at the image of environmental friendly
> solder in weapons of war. (Does the military still use lead in bullets
> and other types of projectiles?) We all (or, at least, most of us) seem
> to be in agreement that the EU ban on lead is irrational; surely we
> should be angry with this misuse of our tax dollars.
>
> Second, the project is being approached as a fait accompli. The document
> says "Successful completion of this project will result in one or more
> lead-free solders qualified for use at depot facilities and defense
> contractor sites participating in this project." Shouldn't the criterion
> for successful completion be the determination of whether or not any
> candidate alloy will be acceptable?
>
> Third, I was horrified to note that facilities using just 250 pounds of
> wire solder (hand soldering) a year are also benchmarked at 800 pounds
> of solder wick! That's more than a 3-to-1 wick-to-solder ratio! What in
> the world are those companies doing?
>
> Fourth, I couldn't help asking myself whether a D.I. water extraction
> test for metals from solder had any real world validity. I am unaware of
> any natural source of D.I. water.
>
> Fifth (and finally), the paper notes that circuit boards can withstand
> 260°C reflow temperatures without delaminating or warping. That's
> conceivable because the boards are supported during reflow. However, I
> am less happy with the idea of wave soldering at 260°C when the
> transition temperature of glass laminates is around 240°C. (Yes, I know
> the DoD calls for wave solder temperatures of 260°C or more, but I
> consider such temperatures ill-suited to modern circuitry.)
>
> In short, I will be watching the JG-PP progress with interest but also a
> substantial dose of skepticism.
>
> Jim Smith
> Managing Director
> Electronics Manufacturing Sciences, Inc.
> 4285 45th St. S.
> St. Petersburg, FL 33711-4431
> Tel: (727)866-6502 ext. 21
> Fax: (727)867-7890
> eMail: [log in to unmask]
>
> Havia Elina wrote:
>
> >The joint test protocol of JG-PP
> >(http://www.jgpp.com/projects/lead_free_soldering/jtp.html) may be also
> >useful to you. Although it is a only draft version at this moment.
> >
> > Best regards,
> >
> > Elina
> >
> >
> >--
> >Elina Havia
> >Elektroniikan 3K-tehdas
> >Laitaatsillantie 3
> >FIN-57170 SAVONLINNA
> >Finland
> >tel. +358 15 571 4034
> >gsm +358 50 461 5572
> >fax. +358 15 571 4029
> >
> >e-mail: [log in to unmask]
> >http://www.3ktehdas.com
> >
> >
> >-----Alkuperäinen viesti-----
> >Lähettäjä: Leadfree [mailto:[log in to unmask]]Puolesta Werner
> >Engelmaier
> >Lähetetty: 21. kesäkuuta 2003 5:48
> >Vastaanottaja: [log in to unmask]
> >Aihe: Re: [LF] Reliability Testing
> >
> >
> >Hi Dan,
> >Use IPC-9701; while it as not developed specifically for LF-solders,
there
> >is
> >nothing that unique about LF vis-a-vis Sn/Pb. Because of the unknown
> >acceleration factors, I would recommend the use of the 0<->100C cycling.
> >
> >Werner Engelmaier
> >Engelmaier Associates, L.C.
> >Electronic Packaging, Interconnection and Reliability Consulting
> >7 Jasmine Run
> >Ormond Beach, FL 32174 USA
> >Phone: 386-437-8747, Fax: 386-437-8737, Cell: 386-316-5904
> >E-mail: [log in to unmask], Website: www.engelmaier.com
> >
> >
> >
> >
> >
> >-----Alkuperäinen viesti-----
> >Lähettäjä: Leadfree [mailto:[log in to unmask]]Puolesta Dan
> >Dodson
> >Lähetetty: 20. kesäkuuta 2003 22:08
> >Vastaanottaja: [log in to unmask]
> >Aihe: [LF] Reliability Testing
> >
> >
> >Ok so I have a lead free solder project that I have been doing research
for.
> >I have found nothing good that I can use on reliability testing. I have
> >read through the NIST 960-8 and am unable use what they have. Does
anyone
> >have any ideas on where I can find a good reliability test standard for
lead
> >free solder. I would like to use heat cycle testing if that is at all
> >possible.
> >
> >Dan Dodson
> >
>
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