Nihon Superior to Highlight TempSave Soldering Materials at IPC APEX


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Nihon Superior Co. Ltd., a supplier of advanced joining materials, is pleased to announce that it will exhibit its TempSave series in Booth #1433 at the IPC APEX Exposition, scheduled to take place Jan. 24-26, 2023 at the San Diego Convention Center in San Diego, CA. The company also will showcase LF-C2 P608 solder paste.

Nihon Superior’s TempSave™ series of low temperature soldering materials has been designed to address the industry’s goals of reduced peak reflow temperature to reduce defects contributing to package warpage, reduce energy consumption during the reflow process, and avoid potential damage to temperature sensitive devices. TempSave B58 is a eutectic SnBi alloy with a melting point of 139°C while TempSave B37 is a ductile hypoeutectic SnBi alloy and does not contain Ag. 

High bismuth containing alloys are known to be brittle and therefore poor in drop shock performance. However, TempSave B37 has outstanding drop performance, even dramatically outperforming SAC305. The halogen-free P610 flux medium is specifically designed for Bi alloys.  The TempSave B37 P610 solder paste can be reflowed with a peak temperature of 190°C.  Additionally, a high speed jetting paste version is available, TempSave B37 P611 which provides consistent dot sizes.

LF-C2 P608 is a completely halogen free, lead-free, low voiding solder paste. 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 a compliance that means that it is resistant to cracking under other loading conditions.  With a liquidus temperature of 213°C it can be reflowed at a lower temperature than SAC305.

SN100CV® P608 is a completely halogen free, lead-free, no-clean solder paste. Unlike silver-containing alloys that derive their strength from a dispersion of fine particles of eutectic Ag3Sn, SN100CV gains its strength from solute atoms in the tin matrix of the joint. Although silver-free, in tensile tests the SN100CV alloy matches the strength of SAC305.

The P608 flux medium provides wetting comparable with that of halogen containing paste even though it is completely halogen-free.  SN100CV P608 and LF-C2 P608 both deliver 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 joining, and lead-free die attach.

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