期刊
FDMD II - JIP 2014 - FATIGUE DESIGN & MATERIAL DEFECTS
卷 12, 期 -, 页码 -出版社
E D P SCIENCES
DOI: 10.1051/matecconf/20141204015
关键词
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5 Thermo-mechanically induced failure is a major reliability issue in the microelectronic industry. On this account, a new type of Assembly Interconnected Technology used to connect MOSFETs in power modules has been developed. The reliability is increased by using a copper clip soldered on the top side of the chip, avoiding the use of aluminium wire bonds, often responsible for the failure of the device. Thus the new designed MOSFET package does not follow the same failure mechanisms as standard modules. Thermal and power cycling tests were performed on these new packages and resulting failures were analyzed. Thermo-mechanical simulations including cracks in the aluminium metallization and intermetallics (IMC) were performed using Finite Element Analysis in order to better understand crack propagation and module behaviour.
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