I would be concerned about processing, forming and plating aids, as it
relates to the contacts and lead frames, exceeding those requirements. I
applaud you for the "Ultem"ate sacrifices in the other areas.
Dewey
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]]On Behalf Of David Shaff
Sent: Wednesday, September 29, 2004 11:35 AM
To: [log in to unmask]
Subject: Re: [LF] What about the other hazardous substances?
Ofer,
FYI. For microwave (rough environments) connectors (SMA through
1.85mm), we've shifted to stainless steel which when properly
passivated, withstands corrosion quite well.
Instead of the plastics with flame retardants added, we are using GE's
Ultem, which is UL94V-0 and is good to > 240 C for brief assembly times
(steady state we use it for 165 C).
Are there any specific areas where we could provide data?
Regards,
David H. Shaff
General Manager
Microwave Products Division (Interconnect)
Southwest Microwave, Inc.
9055 S. McKemy Ave.
Tempe, AZ 85284-2946
Phone: (480) 783-0201, ext. 328
FAX: (480) 783-0360
Mobile: (602) 315-6782
E-mail: [log in to unmask]
See us on the web at: http://www.southwestmicrowave.com
-----Original Message-----
From: [log in to unmask]
[mailto:[log in to unmask]]
Sent: Wednesday, September 29, 2004 11:14 AM
To: [log in to unmask]
Subject: Re: [LF] What about the other hazardous substances?
Everyone should look into his/her bag:
* Cadmium is being used for plating connectors that are intended for use
uin harsh environments
* PBB and OBDE may be found in plastic materials as fire retardants (not
so much, if at all, in PCB).
* Hexavalent chromium is in wide use in Aluminum plating (Anodize) and
in smaller amount in Iridite (does any one know how much? I couldn't
find it)
Regards
Ofer Cohen
Manager
Quality Assurance, Reliability and Production Technologies
SEABRIDGE Ltd. - A Siemens Company
> -----Original Message-----
> From: Leadfree [mailto:[log in to unmask]]On Behalf Of Genny Gibbard
> Sent: Wednesday, September 29, 2004 18:35
> To: [log in to unmask]
> Subject: [LF] What about the other hazardous substances?
>
>
> Almost all of the electronic industry emphasis connected with the RoHS
> directive has been on removing lead. But there are other
> substances listed
> as well in the legislation. What types of material or
> components might be
> hiding some of these other things that I might have to watch
> out for in this
> industry? I don't want to find out after going lead free on
> a product that
> it might still be refused access because of some other
> seemingly minor part
> of the product, like a weld holding the chassis together, or finish on
> metalwork, or the plastic housing of a power inductor. I am
> not familiar
> with the uses of these other substances listed below. How
> prevalent is PBDE
> in PWB material?
>
> mercury, cadmium, hexavalent chromium, polybrominated
> biphenyls (PBB) or
> polybrominated diphenyl ethers (PBDE)
>
> Thanks.
>
>
> Genny Gibbard (mailto:[log in to unmask])
>
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