Sunday, December 4, 2022

Nihon Superior Introduces Lead-Free Solder Paste for Automotive Requirements

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 Nihon Superior Co. Ltd., a supplier of advanced joining materials, is pleased to introduce its LF-C2 Lead-Free Solder Paste. Designed for automotive applications, LF-C2 is the high-strength alloy of choice when cracking minimization is a key selection criterion. 

The demand of the automotive industry for solder alloys that deliver long life in conditions of extreme thermal cycling has resulted in the development of alloys that are very hard. While these hard alloys are resistant to the plastic deformation that drives failure in thermal cycling, the trade-off is that their hardness means that they have a tendency to crack when exposed to the other stresses to which automotive electronics is subjected in service.   Nihon Superior’s LF-C2 strikes a balance between these two requirements, delivering long life in thermal cycling but with compliance, which means that it is resistant to cracking under other loading conditions.

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This balanced performance is achieved by using calibrated levels of the two key strengthening tools available in solder alloy formulation, stable dispersed particles combined with solid solution strengthening of the tin matrix.

With a liquidus temperature of 213°C LF-C2 can be reflowed at a lower temperature than SAC305 and has a higher shear strength than SAC305. 

The completely halogen-free P608 flux medium delivers wetting comparable with that achieved with halogen-containing flux media. LF-C2 delivers excellent performance over a wide range of component types and process parameters. 

Nihon Superior continues to offer solutions to the challenges facing the electronics industry, such as improvements in reliability, thermally stable connections, and lead-free die attach.


 

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