Interconnect Solder Paste
Advanced solder solutions for interconnecting semiconductor packages, from laminate to leadframe packaging.
Learn MoreSemiconductor Interconnect Materials for Advanced Packaging
Advanced packaging semiconductor interconnect materials for cutting-edge chip fabrication, enabling top designers to meet semiconductor industry demands.
Cutting-Edge Technology
Maximize thermal efficiency and precision with our solder Thermal Interface Material (TIM), solder, and flux solutions. Achieve superior heat dissipation, reduce thermal resistance, and ensure reliable, high-performance semiconductor assemblies to meet industry demands.
Vital Interconnect Solutions
Achieve Reliable, Low-Void Semiconductor Assembly
ALPHA® NCX Flux provides no-clean, low-voiding performance for precise microchip assembly, enhancing reliability and yield in semiconductor applications.
Optimize High-Precision Applications with Fine Pitch Solder Paste
ALPHA® WS Solder Paste offers water-soluble, fine-pitch precision, delivering excellent solderability and reduced defects in intricate semiconductor assemblies.
Improve Heat Management with High-Thermal Solder TIM
Kester Indium Solder TIM ensures top thermal performance, enhancing heat dissipation and reliability in high-demand semiconductor devices.
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Semiconductor Solder Flux
Our Semiconductor fluxes for CSP, flip chip, and BGA ball attach deliver high yields, stable performance, and easy DI water cleanup.
Learn MoreSolder Thermal Interface Material
Optimize heat management with our Solder Thermal Interface Materials (TIMs).
Learn MoreWhy MacDermid Alpha?
Integrated Solutions
Semiconductor interconnect materials for advanced packaging include low-void solder flux, semiconductor solder paste, and solder thermal interface materials (sTIM) engineered for reliable bonding, precise deposition control, effective heat dissipation, and high-yield semiconductor assembly. These advanced packaging interconnect solutions power high-performance semiconductor devices by improving bond integrity, thermal management, and overall manufacturing reliability.
Sustainability
Drive semiconductor sustainability with lead-free semiconductor interconnect materials for advanced packaging, including solder flux, precise semiconductor solder paste, and solder thermal interface materials (sTIM) engineered to reduce waste, improve process and energy efficiency, and support RoHS-compliant semiconductor assembly. These high-performance interconnect solutions help manufacturers achieve Environmental Health & Safety (EH&S) goals while maintaining reliable bonding, thermal management, and greener, high-yield production.
Reliability
Our semiconductor interconnect materials for advanced packaging deliver reliable solder bonds, improved solder joint quality, and superior heat dissipation to enhance thermal performance, minimize failure risks, and strengthen assembly consistency in high-performance electronics. Engineered to reduce defects and support long-term reliability, these advanced interconnect solutions enable robust, resilient semiconductor assembly with consistent, high-yield manufacturing results.
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Frequently Asked Questions
What is solder flux used for?
Solder flux is a chemical cleaning agent used in semiconductor assembly and advanced packaging processes - including CSP, BGA, and flip-chip assembly - to remove surface oxides, prevent re-oxidation, and improve wetting for stronger, more reliable solder joints. By enhancing solder bond formation, electrical conductivity, and interconnect integrity, solder flux supports high-reliability semiconductor packaging and consistent, high-performance interconnect performance.
What are solder pastes made of?
Semiconductor solder paste is an electronic assembly material composed of fine solder alloy powder - typically tin-based alloys - suspended in a flux medium, forming a precisely engineered solder and flux mixture for reliable Surface Mount Technology (SMT) processing. Designed to support stencil printing, optimal wetting, and oxide removal, the flux component cleans metal surfaces, improves bonding, and prevents oxidation to ensure strong electrical and mechanical connections. These high-performance solder pastes enable consistent PCB assembly and advanced semiconductor packaging with enhanced reliability and process control.
What are STIMs in soldering?
Solder Thermal Interface Materials (sTIMs) are advanced metal-based thermal interface materials used in semiconductor packaging to efficiently transfer heat between the die and a heat spreader or heat sink. Engineered to reduce thermal resistance and improve heat dissipation, sTIMs enhance solder joint integrity by minimizing voiding and strengthening interconnect reliability. These high-performance thermal interface solutions support reliable operation in power-dense devices and advanced semiconductor assembly applications where superior thermal conductivity and long-term performance are critical.
Are these materials RoHS compliant?
Yes, our advanced semiconductor assembly materials are engineered to meet Restriction of Hazardous Substances (RoHS) requirements, supporting lead-free semiconductor interconnect performance and global electronics compliance. Our portfolio - including solder paste, solder flux, and solder thermal interface materials (sTIMs) - is designed to enable environmentally responsible, high-reliability assembly for advanced electronics and semiconductor packaging applications. Product-level specifications should be confirmed for the specific material selected to ensure full RoHS compliance and alignment with sustainability and regulatory requirements.
How to apply solder paste?
Use SMT stencil printing to apply solder paste with controlled deposit volume and repeatable placement in semiconductor and PCB assembly. Precise stencil printing ensures accurate solder paste deposition for fine-pitch interconnects, improving solder joint consistency, defect reduction, yield enhancement, and high-reliability interconnect performance in advanced electronics manufacturing.