Thermal Shock Chamber By Envisys Technologies

Thermal shock testing is performed to work out the power of components to resist abrupt changes in temperature. Thermal shock chambers apace move merchandise between ”hot” and “cold” temperature zones again and again to ascertain the results of thermal growth and contraction (expansion with heat, contraction with cold). At Envisys Technologies, thermal shock take a look at usually means that the transition from temperature extremes is completed in 5 minutes or less.

What are the differences?

Liquid to Liquid Shock Chambers have individually individual basis} controlled hot and cold baths in an inert liquid. At Envisys Technologies, liquid provides a wonderful heat rate of exchange, permitting the item below take a look at to be captive terribly apace between temperature extremes and providing an instantaneous product natural process. This is often the key profit. The liquid utilized in liquid thermal shock testing conjointly doesn’t coat the merchandise or conduct electricity. The fluid, however, is incredibly costly and leak and evaporation are invariably a prospect. Liquid to liquid chambers are not as pronto accessible as air to air chambers and are usually costlier.

What is a thermal shock chamber?

At Envisys Technologies, thermal shock chamber may be a chamber primarily won’t to take a look at wafers at hot and cold temperatures. A thermal shock chamber together cited as thermal take a look at chamber, temperature chamber, thermal chamber, environmental chamber or confined environmental chamber (LEC), is primarily wont to give a frost-free, light-free and EMI free setting for the device beneath take a look at (DUT).

LEC’s are typically designed to be low profile and tiny to permit users to induce to the required temperature quicker. For many wafer inquisitory applications, the temperatures typically vary from sixty C to two hundred C. different common temperature ranges are -40 C to two hundred C. it’s conjointly not uncommon to probe at temperatures that vary from -60 C to three hundred C.

At Envisys Technologies, testing at elevated temperatures close to two hundred C is commonly abundant easier as compared to testing from -60 C to 200 C. Testing at lower temperatures needs a thermal chuck that incorporates a cooling supply – a refrigerant, nitrogen or clean dry air (CDA). The LEC must be sealed up to forestall close air from getting into the chamber. To assist in preventing the device below take a look at from topping, a particular quantity of CDA or chemical element is pumped-up into the chamber to get a positive pressure. The number of CDA or chemical element is regulated and also the flow may be inflated or attenuated once needed.

At Envisys Technologies, Probing wafers in an exceedingly divided system is tougher than inquisitory wafers in a non-chambered system because of the covers needed to seal the chamber. Inserting probe arms into the chamber aspect and optics through the highest needs some protection materials to forestall close temperature from getting into the chamber. Divided systems typically limit a number of the mechanical movements of the manipulators or travel varies of the magnifier movement.

In Envisys Technologies, divided system with a thermal chuck providing cold and hot inquisitory capabilities adds quite little bit of value to the probe system. In most cases they need to be ordered with the probe system.

Envisys Technologies manufactures Altitude Chamber, Thermal Shock Chambers, Vibration Chambers, Environmental Test Chamber, Industrial Dryer/Ovens, Razor Blade Treatment Chambers, Temperature Forcing System, Custom Built Chambers, Dust Chamber, Salt Spray Chambers, Rain Chambers, Walk-In-Environmental Chambers, Industrial Chillers, UTM Interface Environmental Chambers, Battery Testing Chambers.