What is the HAST aging test? Purpose of aging test

Date：2023-03-08 15:54:25Views：764

In the processing of electronic products, there may be obvious defects and potential defects. Aging test is a test method designed to test the reliability and service life of products. It mainly tests the durability and reliability of products by exposing them to a simulated environment and simulating the effects of temperature, humidity, voltage and other conditions that often occur in the process of use. To help you understand, the following content is organized by Chuangxin Testing Network for your reference.

1、 Test the reliability of the product

Aging test can help enterprises understand the reliability of products to prevent unexpected problems in use. Aging test can use scientific methods to simulate different environmental conditions to test the durability and reliability of the product and whether the product can work continuously and efficiently in actual use.

2、 Find the quality problem of the product

Aging test can help enterprises find product quality problems so as to correct and improve them in time. Aging test can also help enterprises find design defects in product research and development, so as to timely correct, improve product quality and make products more safe and reliable.

3、 Verify whether the product can cope with changes in the market environment

Aging test can help enterprises understand whether products can withstand changes in the market environment. In actual use, the product will be subject to different ways of use and different environmental conditions from users. Aging test can help enterprises understand whether the product can adapt to the complex use environment and whether the product can work stably for a long time.

Application scenario

The HAST high accelerated aging test is mainly used to evaluate the reliability of products or materials in a humidity environment. It is completed by setting and creating various conditions of temperature, humidity, pressure, etc. in a highly controlled pressure vessel. These conditions accelerate the penetration of moisture into the external protective plastic packaging and apply these stress conditions to the mold/device. HAST high-accelerated aging test has become the standard in some industries, especially in semiconductor, solar and other industries, as a fast and effective alternative to the standard temperature and humidity deviation test (85C/85% RH-1000 hours)

HAST is a more accelerated version of the accelerated moisture-proof test. Compared with the high temperature/high humidity test (85C/85% RH), HAST will produce more components, contact with the corrosion caused by moisture and more insulation deterioration. HAST is mainly used for plastic sealing components. The following table shows the test standards related to HAST in common tables. Test the humidity or pressure at the specified temperature and relative humidity. The atmosphere usually has a temperature greater than 100 ℃. In a water vapor pressurized state, HAST is sometimes classified as a combined test pressure and also considered as an environmental parameter. There are saturated, HAST and unsaturated varieties. The former usually completes RH at 121 ℃ and 100%, while the latter completes the power-on of the test electronic components at 110120 or 130 ℃ and 85% RH, which is usually unsaturated. HAST is a rather extreme test. The acceleration factor is between tens and hundreds of times. Under the condition of 85C/85% RH, this extreme acceleration makes the inspection of very important failure mode.

The above is the relevant content of the HAST aging test compiled by the core detection team. I hope it can help you. Our company has a team of professional engineers and industry elites, and has three standardized laboratories with an area of more than 1800 square meters, which can undertake various test projects such as electronic component testing and verification, IC authenticity identification, product design and material selection, failure analysis, functional testing, factory incoming material inspection and tape weaving.