Re: PCB's in liquid nitrogen
- From: John Larkin <jjlarkin@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Fri, 29 May 2009 11:56:17 -0700
On Fri, 29 May 2009 08:42:16 -0700 (PDT), ggherold@xxxxxxxxx wrote:
Does anyone have experience using printed circuit boards at liquid
nitrogen temperatures? The best I could find on the web was liquid
nitrogen used for stress testing PCB's.
The boards will be single sided and have either wires or through hole
components attached, resistors and diodes (nothing active). At the
moment I'm most concerned with having the copper traces peel up from
the substrate. Would heavier copper help? (2 oz. or 4 oz.) I would
hope to use a standard substrate material FR-4, G10....
Thanks,
George Herold
I don't think you'll have any problems with the board. Wide range temp
cycling can stress surfmount solder joints, so thru-hole parts are
probably safer.
John
.
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