When we have raised this point with the DTi there is no mandatory
requirement to repair RoHS compliant product with RoHS compliant
materials.
However you need to consider your own scenarios and also consider the
WEEE directive, one aim of which, maybe indirect, is to keep product out
of the waste stream for as long as possible.
Say for instance you sell a compliant product which fails in the field
and your field service agent still has non compliant plug in
boards/modules, then he would be in the right to use it to repair the
product.
Regards,
Chris
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of Robin Ingenthron
Sent: 04 February 2005 21:40
To: [log in to unmask]
Subject: Re: [LF] Repair of RoHS-compliant equipment
Well stated, but I am uncomfortable with the opening summary saying I
"confirmed" "that the RoHS directive does not require keeping track of
what
kind of solder was used in a connection so that it can be repaired using
the
same kind. So the decision to keep track is voluntary." I was only
speculating why it would not be.
I certainly would welcome the answer about the research basis of
"catastrophic" "infant mortality" failures. Perhaps repair guilds, like
the
National Electronic Service Dealers Assoc. (NESDA) should be involved
if,
say, it is a question of technique (completely remove old solder, or use
a
solder gun of XXX degree heat). Or perhaps it's a question of certain
baby-lifting equipment needing more detailed care than repair of a LF
VCR.
Robin Ingenthron
----- Original Message -----
From: "Kostic, Andrew D." <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, February 04, 2005 12:06 PM
Subject: Re: [LF] Repair of RoHS-compliant equipment
Well stated!
Andrew D. Kostic, Ph. D.
Engineering Fellow
Northrop Grumman
Electronic Systems
Product Integrity Engineering
(410) 765 6594
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]]On Behalf Of Davy, Gordon
Sent: Friday, February 04, 2005 11:57 AM
To: [log in to unmask]
Subject: Re: [LF] Repair of RoHS-compliant equipment
I thank Robin Ingenthron for his posting that confirms that the RoHS
directive does not require keeping track of what kind of solder was used
in
a connection so that it can be repaired using the same kind. So the
decision
to keep track is voluntary. David Suraski has now told us that "we have
seen
catastrophic failures resulting from the lead contamination of lead-free
solder joints."
It would be quite expensive for manufacturers/repairers to make a
mistake on
this topic. If they ignore the problem and it turns out to be real, they
risk sending infant mortality to the field. If they take the problem
seriously and it turns out to be vastly overstated, they have spent a
great
deal of money dealing with what Dieter Bergman termed in 2001 "a
logistical
nightmare." So surely the decision needs to be based on more than
anecdotes.
I strongly urge any forum subscriber with data to support what David has
claimed, that repairing a lead-free solder connection with tin-lead
solder
results in catastrophic failures (or even reduces connection
reliability),
to present the data. There's no need to reveal proprietary information.
Just
identify who did the work (so we can ask questions about it), the kinds
of
termination, the service or test environment, the number of
observations,
etc. The next best contribution would be a metallurgical analysis
explaining
why a lead-free solder connection (and I'm assuming here
tin-silver-copper
with or without antimony) might be made unreliable if repaired with
tin-lead
solder. In other words, let's bring some scientific rigor to the matter
and
get it established. There's a lot at stake here.
Gordon Davy
Baltimore, MD
[log in to unmask]
410-993-7399
------------------------------------------------------------------------
----
---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
------------------------------------------------------------------------
----
---
------------------------------------------------------------------------
-------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
------------------------------------------------------------------------
-------
-----------------------------------------
This message (including any attachments) may contain confidential
information intended for a specific individual and purpose. If you are not
the intended recipient, delete this message. If you are not the intended
recipient, disclosing, copying, distributing, or taking any action based on
this message is strictly prohibited.
-------------------------------------------------------------------------------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
-------------------------------------------------------------------------------
|
