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Providing superior
temperature
testing and
conditioning Chambers and Platforms
that are Sigma Quality is |
Sigma Systems Cryogenic thermal platforms provide a flat,
thermally conductive, precisely temperature controllable aluminum surface
that is ideal for conditioning and testing devices which have a flat surface
for conductive heat transfer. Cryogenic thermal platforms use
L–CO2
or L–N2
for very fast cooling and a high density array of serviceable
electric resistance heaters is used for heating. Because there is no
compressor consuming power in these systems, higher wattage heaters can be
used so heating is very fast.
Because heat is transferred by conduction, temperature changes are affected in the DUT very quickly. Flat sided devices that are either thin or that have good internal thermal conductivity are perfect candidates for conditioning on a Sigma thermal platform. Sigma thermal platforms allow virtually unimpeded access to the thermally conditioned device while conditioning continues. Easy access and compact size make them ideal for bench top use in labs and production environments.
Sigma Cryogenic thermal platforms deliver exceptionally low
gradients and high performance. Sigma uses a high density array of ultra
linear electric resistance heaters to provide smooth and fast heating.
Sigma’s cooling channels are milled directly into the platform to eliminate
cross boundary heat exchange issues. Sigma’s proprietary expanding cross
section inverted double helix design cryogenic cooling channel provides outstanding cooling efficiency, extremely low
gradients, and prevents the formation of dry ice blockages when using L–CO2
.
The result is accurate, fast, and reliable low gradient tests with minimum
cryogenic coolant cost.
If precision, speed, innovative design, and durable operation are of
interest to you then Sigma Quality is the Ultimate Value.
Why Sigma Platforms are Superior
How to Select
the Correct Size of Platform
Chambers vs Platforms
Cryogenic vs Mechanical Cooling
Platform (plate) Accessories
Controllers and failsafes
Drill Mask for Thermal Platforms
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