Zhongzhi Testing Instruments' patented high and low temperature impact heat flow meter/high and low temperature hot and cold air flow meter is suitable for various semiconductor chips, Flash/EMMC, PCB circuit board IC, optical communications (such as transceiver high and low temperature testing, SFP optical module high and low temperature testing, etc.), electronics industry, etc. to conduct IC characteristic analysis, high and low temperature cycle testing, temperature shock testing, failure analysis and other reliability tests.