Low temperature LCC chip carrier

AI Thread Summary
Low temperature LCC chip carriers are challenging to find for measurements down to 10K or even 77K, as most commercially available options only operate down to -70C. Users suggest testing various brands from standard supplier catalogs by submerging them in liquid nitrogen to assess durability, as many have performed well despite not being rated for such low temperatures. For specialized needs, particularly in space missions, certified components are available but often come at a premium. The lack of a significant market for low-temperature LCCs limits options for standard users. Overall, practical testing appears to be a viable approach for those needing LCCs for low-temperature applications.
graysonchen
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I need a LCC for low temperature measurement down to 10K or at least 77K. but I couldn't find any LCC capable of operating at that low temp. most commercially available LLC can only operate -70C. how you guys find a LCC operating below 77K? is it custom made?
 
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We just used regular ones for 77K, they aren't rated for that but that's mostly because there isn't much of a market.

Buy a couple of different brands from the normal supplier catalogs, dump them into LN2 a few dozen times and see if any of them break. We found they all worked fine.

Of course if you have space mission budget there is probably somebody that will sell you exactly the same part with certification that it works at 77K - after they have done the same dunk test!
 
OK. thanks a lot.
 

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