Post #3033336
2025-05-05 04:23 UTC
Thanks!
I recently was in the headquarters/production facilities of Sensiron which interestingly are located near Zurich in Switzerland. It's quite rare to see production of IC's in this country.
The "magic sauce" of the sht40 and friends is the deposition of a certain matieral (can't remember which one) on top of the classic silicon die.
Replies (1)
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@Sal@mander.xyz 2025-05-05 09:35
That is very cool! I did not know they were producing in Switzerland. I would like to visit. Do you know if they routinely open to the public? I wonder if the "magic sauce" is a polyimide. Those polymers are often used as the dielectric layer to make capacitors that are humidity-sensitive. These polymers have sites into which water molecules can reversibly dock such that the occupancy at equilibrium is proportional to the % relative humidity.