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This article is written by Vladimir Azbel Ph.D., semiconductor process reliability engineer consultant, Israel, who investigates how welding of tantalum wire to tantalum capacitor pellet can be optimized to improve its quality and reliability.
This study addresses the critical role of welding in the production of tantalum capacitors, focusing on the Heat-Affected Zone (HAZ) formed during the process. Optimizing welding parameters, especially contact force, is essential for minimizing HAZ size, but assessing contact force is challenging.
In conclusion, this research offers valuable insights into optimizing tantalum capacitor manufacturing by aligning welding parameters with the mechanical characteristics of the sintered pellet. The proposed method not only enhances welding efficiency but also holds promise for improving overall reliability and quality in tantalum capacitors.
Tantalum capacitor pellets A and B after welding of tantalum wire The aim of this study is to utilize the yield strength and plasticity of the sintered tantalum pellet, obtained through powder pressing and sintering, to estimate the contact force.
In the production of tantalum capacitors (TC), there is a crucial component of the design without which the process is impossible – a sintered tantalum pellet with a tantalum wire lead. This lead can be inserted into the pellet during pressing and then sintered or welded to the already sintered pellet.
Structural changes in the tantalum capacitor pellet in tantalum wire welding region The size and type of HAZ structure can serve as a visual indicator of the thermal impact of the welding process, as it reflects the extent of structural changes in the pellet compared to the rest of it.
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A lead wire welding and capacitor technology, which is applied in welding equipment, resistance welding equipment, metal processing equipment, etc., can solve the problems of low work …
Discover how tantalum capacitor welding parameters can be optimized to minimize Heat-Affected Zone (HAZ). Learn how yield strength can be used determined optimal contact force to reduce time & material losses during …
Discover how tantalum capacitor welding parameters can be optimized to minimize Heat-Affected Zone (HAZ). Learn how yield strength can be used determined optimal …
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A lead wire welding and capacitor technology, which is applied in welding equipment, …
The invention discloses a welding process for a capacitor lead. The welding process comprises …
A welding process and capacitor technology, applied in welding equipment, circuits, manufacturing tools, etc., can solve the problems of not being able to effectively meet product …
Welding the lead to the sintered tantalum pellet is a critical stage in the TC manufacturing process, and the reliability of the final product largely depends on the quality of this step. In the welding method used, the …
A welding process and capacitor technology, applied in welding equipment, circuits, manufacturing tools, etc., can solve the problems of not being able to effectively meet product processing quality requirements, solder joints are not …
The invention relates to the technical field of capacitor welding, and discloses a thin film capacitor lead wire welding device.
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Capacitor lead wire welding method provided by the invention realizes the accurate welding of capacitor lead wire by controller, and welding quality keeps stable, simple...
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The invention relates to the technical field of capacitor welding, and discloses a thin film …