Moisture Sensitivity Level Test Items and Precautions

Date：2023-10-19 17:18:09 Views：555

Moisture sensitive devices refer to electronic components packaged with hygroscopic materials such as epoxy resin, polymer resin, etc. Moisture sensitivity level (referred to as MSL in the electronics industry) is defined as the maximum safe time a component can be exposed to an environment not higher than 30 ° C and 60-85% relative humidity for reflow soldering processes. This range starts from MSL 1 and is referred to as "unrestricted" or unaffected, with each incremental level representing a duration threshold.

Common moisture sensitivity level testing items:

1. MSL (Moisture Sensitivity Level) - Moisture Sensitivity Level Test, used to evaluate the moisture sensitivity performance of semiconductor devices.

2. HAST (High Accelerated Stress Test) - High Accelerated Humidity Thermal Stress Test, used to evaluate the reliability of semiconductor devices in high temperature and humidity environments.

3. HTSL (High Temperature Storage Life) - High temperature storage life test, used to evaluate the stability and reliability of devices in high-temperature environments.

4. TCT (Temperature Cycling Test) - Temperature cycling test, used to evaluate the reliability and stability of devices in temperature changing environments.

5. THB (Temperature Humidity Bias Test) - Temperature Humidity Bias Test, used to evaluate the reliability and stability of devices in high temperature and humidity environments.

6. Pressure Cook Test (PCT) - Pressure cooker test, used to evaluate the reliability and stability of devices in high-temperature and high-pressure environments.

Precautions for conducting moisture sensitivity level testing:

1. Understand the moisture sensitivity level of the device to determine if testing is necessary.

2. Ensure that the testing equipment and environment comply with relevant standards and specifications.

3. Select appropriate testing items to ensure accurate and reliable testing results.

4. Ensure that the number and selection of test samples are representative to avoid inaccurate test results due to insufficient or improper sample selection.

During the testing process, it is necessary to strictly control environmental parameters such as temperature, humidity, and pressure to ensure the repeatability and comparability of the testing process.

After the testing is completed, it is necessary to analyze and evaluate the test results to determine the moisture sensitivity and reliability level of the device, and make corresponding processing and decisions.

The above is the moisture sensitivity level testing items and precautions organized by the Chuangxin Testing editor, hoping to be helpful to you. Our company has a team of professional engineers and industry elites, with three standardized laboratories covering an area of over 1800 square meters. We can undertake various testing 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.