[SI-LIST] Re: High Temp PCB Material
- From: HaroldLSJ@xxxxxxx
- To: Christopher.Jakubiec@xxxxxxxxxxxx, si-list@xxxxxxxxxxxxx
- Date: Fri, 13 Apr 2007 13:44:51 EDT
Chris,
Polyimide PCB material would probably be your best choice for this
application. For material reference see the chart at:
_http://www.datacircuits.com/docs/Full%20Material%20Sheet.pdf_
(http://www.datacircuits.com/docs/Full%20Material%20Sheet.pdf)
This link may not be good for long since the site appears to be moving to
Merix. At Merix check:
_http://www.merix.com/files/Preferred%20Laminates%20and%20Prepreg%20rev%200901
06.pdf_
(http://www.merix.com/files/Preferred%20Laminates%20and%20Prepreg%20rev%20090106.pdf)
and:
_http://www.merix.com/files/Material%20Cross%20Reference%20Sheet.pdf_
(http://www.merix.com/files/Material%20Cross%20Reference%20Sheet.pdf)
Good luck with your testing.
Harold L. Snyder, Jr.
Scientist & Consultant
(>34 Years of High Temperature Electronics Design Experience)
Begin Included Message Dated 4/13/2007 8:30:52 A.M. Central Daylight Time,
Christopher.Jakubiec@xxxxxxxxxxxx writes:
====================================
Hello List,
Can anyone suggest a PCB material that can stand up to high temperatures
(175C) better than FR4? We are currently using small double sided
boards 50mm x 50mm with a thickness of about 1.6mm, and a through hole
socket attached to perform hand testing on discrete semiconductors.
The problem occurs when we want to test the part to automotive
specifications and apply a temperature of 175C. This small pcb starts
to warp and then we lose contact to the pogo pins. I do not have much
room to increase the thickness of the board because of the length of the
test socket leads. Any suggestions on alternate materials?
Thanks,
Chris Jakubiec
Test Engineer
Infineon Technologies North America
====================================
End Included Message.
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