Welcome to the world of telecommunications.

Many companies in this industry will NOT allow supplier companies to remove
the leaded solder since it has a good reliability which is proven. Thus the
term 5/6 used to describe this industries exemption under the RoHS annex
paragraph 7c.

Unfortunately with most other componentry heading down the lead free trail,
it is difficult to maintain the reliability when customers insist on a
leaded soldering system.

Component engineers should be very diligent in these situations to check for
things like nemi tin whisker testing on alternate components; the use of
things like bismuth as in tin bismuth plating as used on memory devices.
Also use of lead free BGA's in a leaded assembly ............to name but a
few........will all potentially reduce relibility of electronics assemblies.

John

------------------------------------
Avanex
John Burke
Senior Manager RoHS Compliance
[log in to unmask]
40919 Encyclopedia Circle
Fremont
CA 94538
tel: 510 897 4250
fax: 510 979 0189
mobile: 510 676 6312
------------------------------------


-----Original Message-----
From: Leadfree [mailto:[log in to unmask]]On Behalf Of Martin Cook
Sent: Friday, July 08, 2005 1:24 AM
To: [log in to unmask]
Subject: Re: [LF] Banned substances 5 out of 6 and not all 6 out of ???


5 out of 6 using Sn/Pb solder & Pb-Free components is going to be painful
when building 6 out of 6.

5 out of 6 using Sn/Pb solder & Sn/Pb components turns into a
nightmare!!!!!!!!!!

-----Original Message-----
From: Leadfree [mailto:[log in to unmask]]On Behalf Of MA/NY DDave
Sent: 08 July 2005 04:53
To: [log in to unmask]
Subject: Re: [LF] Banned substances 5 out of 6 and not all 6 out of ???


Hi Ken, IPC LF Listservers,

Go back and read a post of 31May where John Burke participated.

The below link should get you to his note and then scroll backwards for
more dialog.

http://listserv.ipc.org/scripts/wa.exe?
A2=ind0505&L=leadfree&P=R15412&D=0&H=0&I=-3&O=T&T=0

Yours in Engineering, Dave
YiEngr, MA/NY DDave

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-------------------------------------------------------------------------------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
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