Sure, mate,
but I had no idea about the application and it's destiny. Suggest a board that has been inactive (not operating)for a long time (stored)and suddenly has to work in 200 Centigrades+. If ordinary board material was used, absorbed humidity may be a problem. That's why I suggested LTCC. But, as I said, too little input for giving real good advice.
Regards
Ingemar Hernefjord
Ericsson Microwave Systems
-----Original Message-----
From: MA Ranganath/SMPLB/SEC/SANMAR [mailto:[log in to unmask]]
Sent: den 27 juni 2002 11:07
To: TechNet E-Mail Forum.; Ingemar Hernefjord (EMW)
Subject: Re: [TN] High operating temperature
Dear Ingemar,
The materials that can be used to meet high operating temperatures for PCBs
can be any of BT Epoxy or Poyimide.
Some of the processing parameters wil differ from Normal FR-4 material
requirements.
Regards,
M A Ranganath
GM - Technical & Quality
Sanmar Micropack Limited
Plot No.16, Jigani Industrial Area,
Bangalore - 562 106. INDIA
Phone: 91 - 80 - 7825223/224/226/389
Fax : 91 - 80 - 7825225
Email : [log in to unmask]
"Ingemar Hernefjord (EMW)"
<[log in to unmask] To: [log in to unmask]
ICSSON.SE> cc:
Sent by: TechNet Subject: Re: [TN] High operating temperature
<[log in to unmask]>
06/27/02 12:12 PM
Please respond to "TechNet
E-Mail Forum."; Please
respond to "Ingemar
Hernefjord (EMW)"
Hi Eddie,
we made some odd circuits for missiles many years ago, LTCC substrates will
do the job and also if you can use gold/tin solder. But we had rather few
components, most of them ceramics and semis. Just an idea, don't know what
kind of equipment you are planning.
Ingemar
-----Original Message-----
From: Eddie Rocha [mailto:[log in to unmask]]
Sent: den 26 juni 2002 18:37
To: [log in to unmask]
Subject: [TN] High operating temperature
Can someone recommend a laminate for product that will, at
times see operating temperatures of 205C for 4 hours. Also
would this require a different solder? Will solder reflow?
Any comments?
thanks,
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