パワーデバイス電気特性の機械的応力依存性 [in Japanese] Mechanical Stress Dependence of Power Device Electrical Characteristics [in Japanese]
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This paper describes how mechanical stress affects the electrical characteristics of power devices, depending on the surface structure of the device and stress direction. We applied ideal external uni-axial stress to the various power devices, and studied the mechanism by comparing results from experiments and simulations. We found that the stress dependence of the on-state voltage mainly arose from the MOSFET portion of the IGBT. This consideration gives us the important information for designing a power module with higher output density.
- IEEJ Transactions on Sensors and Micromachines
IEEJ Transactions on Sensors and Micromachines 128(5), 577-583, 2008-05-01
The Institute of Electrical Engineers of Japan