In early January 2026, global demand for high-reliability SMT Solders across the electronics manufacturing services (EMS) industry chain continued to rise. Multiple leading international and domestic material suppliers have collectively launched new generations of Solder Pastes, Solder Wires, and preform solder products, with technical routes focusing on low-temperature lead-free formulations, optimized void rate control, improved thermal cycling stability, and enhanced ionic cleanliness of Flux residues. This reflects the rigid upgrade demands of downstream consumer electronics, automotive electronics, and AI server PCB assembly processes for soldering yield and long-term service safety.

Senju Metal Industry officially released its M700L series low-temperature solder paste on January 12, 2026, during the NEPCON exhibition in Shenzhen. The product's peak reflow temperature is 35°C lower than that of traditional SAC305, achieving sufficient wetting in the 180°C–200°C range while stably controlling BGA solder joint void rates within 8%. It has completed 6 months of real-machine operation verification on two SMT production lines at Luxshare Precision and Foxconn's Zhengzhou campus, with over 12 million chips mounted cumulatively and a first-pass yield maintained above 99.92%.

Solderon Technology simultaneously targeted its SM-ULTRA 2.0 no-clean solder paste to the top 10 domestic EMS enterprises on January 15. Utilizing a novel rosin derivative carrier system, it reduces Cl? content to 0.015wt% while maintaining a Tg value ≥115°C, meeting IPC-J-STD-004C Class L0 requirements. It has completed trial production introduction for automotive ADAS control boards at BYD Electronics' Huizhou base, with post-reflow AOI false alarm rates decreasing by 41% and X-ray detected solder joint bridging defects reduced by 27%.

Indium Corporation of America announced on January 18 that its NC-559LF solder paste has passed all process window certifications at Samsung Semiconductor's Suzhou packaging and testing facility. This model is specifically adapted for 0.3mm pitch FCBGA substrates, and its nano-silver doped flux system maintains 91.3% of initial solder joint shear strength after 500 thermal shock cycles at -40°C/125°C, far exceeding the industry-recognized 85% baseline.

Henkel China initiated customer sampling of its LTS-880 series preform solder sheets on January 20. Based on the Sn96.5/Ag3.0/Cu0.5 composition, the product incorporates trace bismuth to regulate melting range width, and achieves ±25μm mounting accuracy when paired with localized laser heating processes. It has been specified for use in an AI acceleration module project by HiSilicon, with monthly usage expected to reach 3.2 tons starting in Q2.

Notably, this round of SMT solder technology upgrades has not been accompanied by overall price increases. Mainstream manufacturers have all adopted cost restructuring strategies, such as replacing precious metal activators with flux compounding processes and substituting imported atomized powders with domestic high-purity tin powder secondary ball milling. This has kept the average unit cost increase of new products within 4.7%, significantly lower than the 12.3% average price increase for high-end solder pastes during the same period in 2025, indirectly confirming that industrial technology evolution is shifting from single performance breakthroughs to a balance of comprehensive process adaptability and mass production economics.