The plastic high-low temperature impact test chamber is designed for ease of use, yet some electronic components may occasionally experience issues. One common problem is the fault migration phenomenon, which typically falls into three main categories: ion migration, electromigration, and stress migration. These phenomena can affect the reliability and performance of electronic devices over time.
The plastic high and low temperature impact test box serves multiple functions to ensure accurate and efficient testing:
1. It can automatically preheat or pre-cool in advance, select a starting point based on scheduled time, and begin cycling or impact testing from either high or low temperature. It also features cycle number setting and automatic defrost capabilities.
2. The system is equipped with an automatic and highly precise control loop. Every operation is fully managed by a PLC, ensuring high-temperature control accuracy through PID auto-calculations.
3. The air outlet and return air port sensors monitor and control the airflow, while the wind direction gate mechanism switches within 10 seconds. The thermal shock temperature recovery time is completed within 5 minutes, ensuring fast and stable testing conditions.
Normal failure phenomena in plastic-sealed high-low temperature impact test chambers include issues related to integrated circuits. These chips consist of numerous electronic components connected via wires on a silicon wafer. Aluminum or aluminum alloys are commonly used as wire materials due to their low cost and simple processing. However, during the plastic sealing process, moisture can penetrate the epoxy resin, leading to corrosion of the aluminum wires. This issue creates a significant challenge in quality engineering.
Despite various improvements—such as using different epoxy materials, advanced molding techniques, and non-reactive plastic films—the problem of corrosion in plastic-sealed aluminum wires remains a critical concern, especially as semiconductor devices continue to become smaller and more complex.
Dongguan Aisihao Instrument Equipment Co., Ltd. specializes in manufacturing a wide range of environmental testing equipment, including cold and hot impact test chambers, constant temperature and humidity test machines, salt spray test chambers, and more. For more information or to discuss your specific needs, feel free to contact us today!
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