Open AccessEffect of Environmental Factors on Ultrasound Detection of Plastic Encapsulated Microcircuits
Author(s) -
Hailong Zhao,
Kui Zhang,
Zhenhua Zhou,
Xi Shanbin,
Yin Liu,
Jie Huang,
Hao Peng
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1885/4/042064
Subject(s) - ultrasonic sensor , immersion (mathematics) , moisture , materials science , ultrasound , ultrasonic testing , composite material , forensic engineering , environmental science , acoustics , engineering , physics , mathematics , pure mathematics
Based on the problems encountered in ultrasonic detection of Plastic Encapsulated Microcircuits (PEMs), the relationship between storage environment, immersion time, baking treatment and temperature test and other environmental factors and the stability of PEM are studied for the characteristics of plastic encapsulated materials that are susceptible to temperature changes and moisture. And its effect on the results of ultrasonic testing, the reasons for the inconsistency of ultrasonic testing results are analysed, and storage, transportation, immersion time, baking treatment requirements before and after the test, and device use recommendations are put forward.