2024
12-05
What are the effects of abrasive morphol...
The morphology and dispersion medium of abrasives have a significant impact on the grinding quality of 4H silicon carbide (4H SiC) chips. The following is a detailed analysis of this impact:1、 The influence of abrasive morphologyThe morphol...
2024
12-02
How is the filtering value for roughness...
1、 Selection of Sampling Length and Evaluation LengthSampling length: It is a reference line length used to determine the surface roughness characteristics. It should be large enough to contain sufficient surface details to accurately refle...
2024
11-21
Poor flatness of the bonding surface bet...
When the flatness of the bonding surface between the bottom of the IGBT package and the heat sink is poor, a series of adverse effects will occur:Reduced contact area: Poor flatness of the bonding surface leads to a decrease in the contact ...
2024
11-18
Poor flatness of IGBT chips leads to str...
Stress concentration: When the flatness of IGBT chips is poor, there may be unevenness on the surface of the chip. These uneven areas are prone to stress concentration when subjected to external forces or temperature changes. Especially at ...
2024
11-17
The correlation between the increase in ...
Reduce effective contact area: When 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 a...
2024
11-17
Why is the minimum roughness required to...
1、 Reduce the impact of other geometric shape errorsThe purpose of specifying the sampling length (i.e. a part or basis of the evaluation length) is to limit and reduce other geometric errors, especially the influence of surface wave roughn...