The breakdown mode of an element may include overcurrent, overvoltage, overheat, etc. Causes of each breakdown mode have to be investigated. In the real world, however, it is difficult to identify the cause by the breakdown status of an IGBT module alone. It is important to consolidate information such as the breakdown voltage VCE, current […]
These are only exemplary temperatures. If they are not suitable for your application, use the curve that gives the shortest lifetime for your design.
In operations where the junction temperature Tvj of a semiconductor chip changes, thermal stress is generated between the materials of the power module. Fatigue will be accumulated from repeated thermal stress, leading to breakdown in the end. Increasing temperature change ΔTvj, leads to a reduction in the lifetime of the power module. It is called […]
ΔTj power cycle breakdown mode will become solder degradation mode in the operation with large temperature variation and wire peeling mode in the operation with relatively small temperature variation. Additionally, the transition from plastic to elastic behavior occurs at around 50oC, which causes an inflection point in the curve.
Power cycle capability is the capability of the module to withstand repeated heating and cooling. The case temperature Tc will goes up and down until the modules fails: Stress strain is generated between the metal base plate and the insulating substrate causing fatigue in the solder under the insulating substrate. Refer to technical documents describing […]
It will cause a separation of aluminum wire, or a crack in the solder under the chip. Thermal destruction will result from the current concentrating on the relevant part of the chip, or increased thermal resistance.
Please contact Fuji Electric Corp. of America or your local sales representative or distributor to answer your question.
Power semiconductor modules of Fuji Electric Corp. of America have been certified with UL standard 1557, category code QQQX2 (File No. E82988). The relevant model types can be found on the UL website’s (http://japan.ul.com/) Online Certifications Directory.
Please contact Fuji Electric Corp. of America or your local sales representative or distributor to answer your question.
Please contact Fuji Electric Corp. of America or your local sales representative or distributor to answer your question.
