[tinwhiskers] Re: Verizon Supports Telcordia's Position on the RoHS Directive
- From: "Jayasinghe, Ryan" <Ryan@xxxxxxxxxx>
- To: "Bob Landman" <rlandman@xxxxxxxxxxxxxxxxx>
- Date: Fri, 16 May 2008 13:53:14 -0700
Hello Bob,
Your points are well taken.
However I think that Verizon's position is valid, the RBOCS' five-nines
reliability requirement (99.999% uptime) can be compromised severely
with Pb-Free for the very issues you brought up.
Difficulty in getting parts is an issue. We have had some success in
getting some flip chip makers to go back to SnPb.
The need to maintain the SnPb process needs to be fed up the supply
chain, which we should have started back in 2003, but who new they were
all going to jump in this band wagon.
I have heard that high-reliability electronics manufactures are only 3%
of the components market, and the manufactures are bowing to the larger
commercial customers.
One important point, which I also brought up during the 2006 NEBS
Conference, can be found in Telcordia's GR-78 Issue 1. (Issue 2 is the
latest)
GR-78-CORE Physical Design and Manufacture of Telecommunications
Products:
Under "Requirements for All Products"
R2-21 [32] Where a novel or new technology is introduced by an equipment
manufacturer, the manufacturer shall demonstrate the reliability of such
technology. Accelerated testing will typically be required; alternate
approaches such as mathematical modeling may be acceptable if validity
can be demonstrated. Third-party (e.g., supplier) data may be
acceptable.
A novel or new technology may be one that has not previously been used,
one that has not previously been used in telecommunications, or one that
has not previously been used by the particular equipment manufacturer.
Reliability data shall be made available to the Network Operator, or its
designated representative, upon request.
This was acknowledged as a way one can introduce Pb-Free products to the
RBOCS.
But as we all know the hidden dangers of Pb-Free may not eke out in just
3 days of testing.
Ryan Jazz Jayasinghe
www.canoga.com <http://www.canoga.com/>
Compliance Engineer x1198
* Tel: 818 678 3898
* Fax: 818 678 3798
* E-mail: ryan@xxxxxxxxxx <mailto::ryan@xxxxxxxxxx>
**No one can make you feel inferior without your consent**
~Eleanor Roosevelt~
________________________________
From: tinwhiskers-bounce@xxxxxxxxxxxxx
[mailto:tinwhiskers-bounce@xxxxxxxxxxxxx] On Behalf Of Bob Landman
Sent: Friday, May 09, 2008 4:22 PM
To: tinwhiskers@xxxxxxxxxxxxx
Subject: [tinwhiskers] Re: Verizon Supports Telcordia's Position on the
RoHS Directive
Ryan,
I find it ironic that Verizon continues to ask that you keep the Pb in
when, but as we all know these past few years, we have great difficulty
in getting parts that are tin-lead plated.
Every day purchasing tells me of yet another part that is now
unavailable and we must find a substitute only to find that the
so-called "substitute" is lead-free. Only recently on one part from
Analog Devices, did the converse hold true. The distributor quoted 16
weeks and I blew a gasket. Turned out they had quoted the lead-free
part which we had not requested a quote on! Finally the truth came out
- we could have the leaded part in 5-6 weeks (standard delivery terms).
I was not amused.
Until we can find a way to force parts manufacturers to make them go
back to tin-lead solder plating parts, sure, we'll solder the parts down
with tin-lead.
But tin whiskering will happen above the solder wetting point and we
will have reduced reliability.
Is Verizon willing to pay you what NASA and DOD pays for parts that get
recoated in tin-lead, one at a time?
I doubt it.
Bob Landman, President
Senior Member, IEEE PES
H&L Instruments, LLC
34 Post Road, PO Box 580
North Hampton, NH 03862-0580
(tel) 603-964-1818 (fax) 603-964-8881
www.hlinstruments.com <blocked::http://www.hlinstruments.com/>
________________________________
From: tinwhiskers-bounce@xxxxxxxxxxxxx
[mailto:tinwhiskers-bounce@xxxxxxxxxxxxx] On Behalf Of Jayasinghe, Ryan
Sent: Monday, May 05, 2008 8:05 PM
To: tinwhiskers@xxxxxxxxxxxxx
Subject: [tinwhiskers] Re: Verizon Supports Telcordia's Position on the
RoHS Directive
Hello John,
I know I am a little late on this thread but I am sure this is still
Verizon's position.
It was my suggestion during the Q&A session at Verizon's NEBS 2006
conference that produced this statement on their website. (Pat pat..)
Verizon does have a need for RoHS compliant products for their foreign
deployments but there too they ask we keep the Pb as there is an
exemption for telecommunication products.
Ryan Jazz Jayasinghe
Compliance Engineer x1198
Canoga Perkins Corporation
* Tel: 818 678 3898
* Fax: 818 678 3798
* E-mail: ryan@xxxxxxxxxx <mailto::ryan@xxxxxxxxxx>
**No one can make you feel inferior without your consent**
~Eleanor Roosevelt~
________________________________
From: tinwhiskers-bounce@xxxxxxxxxxxxx
[mailto:tinwhiskers-bounce@xxxxxxxxxxxxx] On Behalf Of John Burke
Sent: Tuesday, April 29, 2008 1:14 PM
To: tinwhiskers@xxxxxxxxxxxxx
Subject: [tinwhiskers] Re: Verizon Supports Telcordia's Position on the
RoHS Directive
I have written to Telcordia to find out. I doubt the position has
changed.
John
John Burke
(408) 515 4992
________________________________
From: tinwhiskers-bounce@xxxxxxxxxxxxx
[mailto:tinwhiskers-bounce@xxxxxxxxxxxxx] On Behalf Of Fritz, Dennis D.
Sent: Tuesday, April 29, 2008 12:08 PM
To: tinwhiskers@xxxxxxxxxxxxx
Subject: [tinwhiskers] Re: Verizon Supports Telcordia's Position on the
RoHS Directive
Bob,
This is 18 months old, and component suppliers continue to convert to
pure tin. Do you know if this is still the Telcordia position. Sure
would be nice to try to bolser some similar resolve in the military
community.
Denny Fritz
SAIC
________________________________
From: tinwhiskers-bounce@xxxxxxxxxxxxx on behalf of Bob Landman
Sent: Tue 4/29/2008 11:04 AM
To: tin whiskers forum
Subject: [tinwhiskers] Verizon Supports Telcordia's Position on the RoHS
Directive
Verizon Supports Telcordia's Position on the RoHS Directive
New legislation known as "RoHS" (Reduction of Hazardous
Substances) bans certain chemicals and metals from some electronic
manufacturing. In order to maintain high and predictable network
reliability, it is the expressed desire of Verizon that:
* 1. Equipment manufacturers shall continue to use
leaded-solder until alternatives have demonstrated reliability suitable
for the telecommunications infrastructure, and;
* 2. Component suppliers shall continue to make available
components compatible with leaded-solder manufacturing until
alternatives have demonstrated reliability suitable for the
telecommunications infrastructure.
Verizon supports the position conveyed by Telcordia in their
Notice To The Industry. Click here
<http://www.verizonnebs.com/docdb/NTTI-ReliabilityConcerns.pdf> to view
this document.
Prepared by: Howard Davis, DMTS, Verizon NEBS Compliance &
Quality Assurance - 11/2/2006
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