Glass Cover the object to be measured (IC) with the heat shield cup to isolate it from the surrounding environment, thus forming a relatively independent small confined space. Then inject compressed air into the confined space. The temperature of ordinary compressed air can reach - 80 ℃~+225 ℃ after being cooled/heated by the equipment (TS-780 as an example/refer to the intercooling product model for specific indicators), and the conversion time is 10 seconds per month. The equipment can be used not only for fast high and low temperature impact, but also for accurate constant temperature test, with temperature accuracy of ± 1 ℃

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