2024
11-16
Poor surface flatness of IGBT chips can ...
1、 Reduced contact areaWhen the surface flatness of IGBT chips is poor, the contact surface between the chip and the heat sink will no longer be completely adhered. Due to the unevenness of the chip surface, some areas will not be able to f...
2024
11-15
Poor flatness of the bonding surface bet...
1、 The generation of mechanical stressWhen the flatness of the bonding surface between the bottom of the IGBT package and the heat sink is poor, perfect contact may not be formed between the package and the heat sink. During IGBT operation,...
2024
11-15
What are the standards for roughness?
1、 Roughness evaluation parametersThe average arithmetic deviation Ra of the contour: the arithmetic mean of the absolute value of the contour offset within the sampling length. In actual measurement, the more measurement points there are, ...
2024
11-14
Poor flatness of the bonding surface bet...
1、 The influence of heat conduction and heat dissipation effectIncreasing contact thermal resistance: Poor flatness of the IGBT package bottom and heat sink bonding surface can result in gaps between the contact surfaces, which can increase...
2024
11-14
What is the laser resolution and how is ...
1、 Laser resolution of laser printerThe laser resolution in a laser printer refers to the minimum line width or dot matrix size that the printer can recognize and output during printing. It is usually expressed in dots per inch (DPI), which...
2024
11-13
The correlation between the poor flatnes...
Decreased heat dissipation performance:When the flatness of the bonding surface between the bottom of the IGBT package and the heat sink is poor, the contact area between the two will decrease, and the degree of contact tightness will also ...