Hi Chris,
I am interested in the chemical that you believe is in FR-4 that makes
it non compliant. I am not aware of one.
David W. Bergman, CAE
Vice President, Standards, Technology and International Relations
IPC
3000 Lakeside Drive # 309S
Bannockburn, IL 60015
Phone 847-597-2840 Fax 847-615-5640
Mobile 847-867-1388
Main 847-615-7100
email [log in to unmask] www.ipc.org
-----Original Message-----
From: James, Chris [mailto:[log in to unmask]]
Sent: Friday, February 18, 2005 2:42 AM
To: (Leadfree Electronics Assembly Forum); David Bergman
Subject: RE: [LF] RoHS compliance PCB
I would be careful in saying all FR4 is RoHS compliant, it depends who
makes it. FR4 is not inherently RoHS compliant by nature, it rather
depends on how it was made and there may still be some laminate
producers in far flung corners of the world who are not producing
compliant material.
Regards,
Chris
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of David Bergman
Sent: 17 February 2005 22:22
To: [log in to unmask]
Subject: Re: [LF] RoHS compliance PCB
All FR-4 laminates are RoHS compliant. The flame retardant used in FR-4
is not a prohibited chemical under RoHS. This is a common
misunderstanding. You need to be considering the impact of the higher
processing temps on the laminate used and not worry about the flame
retardant.
Best regards,
Dave
David W. Bergman, CAE
Vice President, Standards, Technology and International Relations IPC
3000 Lakeside Drive # 309S Bannockburn, IL 60015 Phone 847-597-2840 Fax
847-615-5640 Mobile 847-867-1388 Main 847-615-7100
email [log in to unmask] www.ipc.org
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of James, Chris
Sent: Thursday, February 17, 2005 3:32 PM
To: [log in to unmask]
Subject: Re: [LF] RoHS compliance PCB
talk to your pcb vendor also, they are pretty atune to the situation -
well the reputable UK ones are...
Chris
-----Original Message-----
From: Leadfree on behalf of Ken Patel
Sent: Thu 17/02/2005 19:46
To: [log in to unmask]
Cc:
Subject: Re: [LF] RoHS compliance PCB
All,
I visited the laminate supplier web-site and they all either
talk about
Leadfree or Halogenfree. They are not talking about RoHS
compliance. Meaning
we have to go to Halogenfree laminates directly? Are Leadfree
laminates RoHS
compliance in general?
Re,
Ken Patel
-----Original Message-----
From: James, Chris [mailto:[log in to unmask]]
Sent: Thursday, February 17, 2005 1:42 AM
To: (Leadfree Electronics Assembly Forum); Ken Patel
Subject: RE: [LF] RoHS compliance PCB
1. try it, test it, and prove it - depends on your processes and
end
requirements. Apparently some people process Pb-F on phenolic.
2. if you put the requirement on your engineering drawing
supplied to
the fab house, maybe include it in your standard purchasing
agreement
and request a d of c from the vendor, then you have pretty well
fulfilled your due diligence being there are no real practicable
ways to
test for RoHS compliance.
Regards,
Chris
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of Ken Patel
Sent: 16 February 2005 23:06
To: [log in to unmask]
Subject: [LF] RoHS compliance PCB
All,
I have heard that Fab Houses are moving directly to Halogenfree
process,
skipping middle step knowing that Halogenfree is next in line to
be
implemented. As our current fabs are built using laminate made
of Tg of
170
C or more with Nickel Gold surface finish, do you see any
problem?
Do we have to worry besides updating the fab notes asking for
RoHS
compliance? We expect fab house to build products based on
impedance
requirement. Any comments, suggestion?
Re,
Ken Patel
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