CES 2025 Wind Vane:
Three Core Demands for Soldering Materials under Tech Iteration in Electronics Industry
🧭 Global Electronics · Smart Manufacturing · Green Compliance
As the "technology compass" of the global electronics industry, CES 2025 centrally presented the triple innovations of intelligent terminals, manufacturing processes, and environmental standards. From the ubiquity of AIoT devices to the high performance of automotive electronics, from the miniaturization of display technology to the normalization of green manufacturing, the innovation iteration of terminal products is transmitting to the upstream material industry, putting forward quantifiable and verifiable stringent requirements for the performance, precision, and compliance of soldering materials.
I. Automotive Electronics Intelligence + Electrification: High Reliability and Extreme Endurance Become Hard Indicators
At CES 2025, new energy vehicles and intelligent driving technologies continued to explode, with core components such as SiC/GaN power modules, vehicle ECUs, and 4680 power batteries becoming the focus. The working environment of these components features "high temperature, high voltage, long life", directly driving soldering materials to upgrade towards high reliability.
1. Explicit Requirements for Environmental Stability
- • Wide Temperature Range Operation: Automotive electronics need to work stably in the -40℃~125℃ wide temperature range, far exceeding consumer electronics standards.
- • Thermal Cycle Durability: After several thermal cycles, solder joint failure rate needs to be <0.1%, and shear strength retention rate ≥70%.
- • Mechanical Reliability: Meet IATF16949 automotive quality system requirements for soldering consistency.
2. Both Electrical and Mechanical Performance Standards Met
- • High Current Transmission: Solder joint resistance ≤10mΩ, thermal conductivity ≥58W/m・K.
- • High Conductivity: Use high-purity alloy materials to reduce energy consumption and heat loss.
- • Vibration Resistance: Maintain stable connection within the 10-2000Hz vibration range.
3. Dissimilar Material Adaptation Capability
Targeting the welding needs of ultra-thin copper foil and aluminum foil in power battery packaging, it requires achieving >100MPa joint strength while avoiding burn-through; capable of adapting to dissimilar material combinations like copper-aluminum, copper-stainless steel.
🚀 Tech Response: Earlysun Technology Solution
The developed solder paste uses a quaternary alloy system, passed thermal cycle testing, and has adapted to the power device soldering needs of multiple car companies. Its thermal fatigue performance and electrical reliability both meet IATF16949 standard requirements.
II. Display and Microelectronics Miniaturization: Ultra-fine Pitch Soldering Becomes Core Challenge
At CES 2025, the popularity of products like Mini/Micro LED, flexible displays, and AR/VR devices accelerated the evolution of electronic components towards "miniaturization and high density". Chip sizes have shrunk to the 4x6mil level, and solder joint spacing approaches 70μm.
1. Quantification of Solder Powder Size and Distribution
Adopting T6/T7 grade ultra-fine solder powder, particle size distribution span ≤15μm; solder powder sphericity ≥0.95, ensuring complete release during ultra-fine pitch printing below 0.16mm.
2. Solder Joint Quality Meets International Standards
According to IPC Class III standards, solder joint void rate needs to be controlled below 5%; no defects like bridging or solder balls, meeting high-density packaging reliability requirements.
3. Process Adaptability Improvement
Compatible with both air and nitrogen reflow environments; solder paste viscosity change rate ≤15% after 8 hours of continuous printing; melting range ≤10℃.
🚀 Tech Response: Earlysun Technology Solution
The Mini LED specialized solder paste uses a customized flux formula and optimized solder powder grading, controlling the solder joint void rate below 3%. Its ultra-fine powder printing stability has been verified in mass production by multiple display companies.
III. Environmental Protection and Energy Efficiency Upgrade: Synergistic Development of Compliance and Low Consumption
The tightening of global environmental policies and the rise of energy-saving computing have brought soldering materials into a dual-constraint era of "compliance + efficiency".
1. Clear Basis for Environmental Compliance
Strictly follow EU RoHS 2.0 and China GB/T 26125 standards, lead content <100ppm; prioritize low-halogen or halogen-free formulas; non-corrosive soldering residues.
2. Energy Efficiency Matching Energy Saving Needs
For high-integration chips, develop low-temperature solder paste with melting point ≤210℃, reducing energy consumption by 15-20%; thermal conductivity ≥50W/m・K, accelerating heat dissipation; low resistance connection reducing power loss.
3. Process Compatibility Optimization
Lead-free solder paste matches traditional leaded products in wetting ability and reflow temperature window, reducing enterprise upgrade costs; reduces flux residue, lowering cleaning needs.
🚀 Tech Response: Earlysun Technology Solution
The lead-free solder paste series uses classic alloy systems with stable melting temperatures. Its low-residue formula requires no cleaning, reducing process water and chemical consumption, and has achieved large-scale application in consumer electronics and industrial control fields.
Conclusion: Material Innovation Logic Under Technology Iteration
Judging from the technology trends presented at CES 2025, innovation in the electronics industry has entered a new stage where "terminals define demand, and materials support innovation".
Earlysun Technology always follows industry trends, continuously optimizes solder paste product performance parameters based on international standards like IPC and IATF, and helps partners meet technological change challenges with solder paste solutions that better fit scenario needs, jointly promoting the high-quality development of the electronics industry.
