Earlysun Technology | Formic Acid Solder Paste:
The Ultimate Possibility of Electronic Welding
🔬 Precision Welding · Zero Residue · Nanoscale Process
In the field of high-end electronics manufacturing, precision welding is like "chip-level art"—it must ensure absolute reliability of solder joints while meeting impeccable cleanliness standards; it must conquer the challenges of difficult-to-solder materials while achieving zero defects on a nanoscale. Earlysun Technology has been deeply involved in electronic welding materials for many years, creating the Formic Acid Solder Paste series with innovative formulas to provide reliable welding solutions.
I. Four Core Values of High-End Welding
1 Clean with No Residue
Earlysun Formic Acid Solder Paste uses high-purity formic acid as the core activator, breaking through the residue problems of traditional rosin/organic acid solder pastes. During the high-temperature process, formic acid molecules precisely decompose into carbon dioxide and water, leaving the solder joint surface clean.
2 Disruptive Wetting Power
For complex surfaces like nickel-palladium-gold, ceramic substrates, and nickel alloys, Earlysun Formic Acid Solder Paste demonstrates powerful performance:
- 🔹 Rapid stripping of nanoscale oxide layers: Efficiently breaks stubborn oxide films like CuO and SnO₂;
- 🔹 Ultra-low interfacial tension: Achieves perfect spreading on micro-pads and BGA/CSP devices;
- 🔹 Exclusive vacuum environment adaptation: Paired with vacuum reflow soldering, solder joint void rates are stably controlled far beyond industry standards.
3 Zero-Compromise Environmental Philosophy
Rejects halogens and VOCs (volatile organic compounds), complying with strict certifications from raw materials to manufacturing processes. Allowing high-end manufacturing to run parallel with sustainable development—every weld is a promise to the future.
4 Precision Process, Details Reveal Truth
📦 Storage & Usage: Full cold chain control, 24-hour activity freshness after opening, professional storage solutions included;
⚙️ Equipment Compatibility: Adapts to electro-polished nano-coated stencils and quartz acid-resistant furnace chambers, providing customized equipment protection schemes;
📈 Process Control: Exclusive reflow profiles paired with intelligent process monitoring systems ensure consistency in every batch.
II. The "Invisible Must-Haves" of Manufacturing: Essential for These Scenarios
Vacuum welding for automotive radar/power modules, coping with high reliability needs under high temperature and vibration environments, eliminating solder joint failure risks.
Zero residue guarantees long-term stability of micro-electromechanical structures and optical components, avoiding signal interference or lens fogging caused by traditional solder paste residues.
Withstands extreme temperature cycles with no corrosion hazards.
Biosecurity assurance for implanted device welding; no-clean process avoids risks caused by cleaning agent residues.
Choosing Earlysun Formic Acid Solder Paste: More Than a Product, It's a Systematic Solution
Achieving the "optimal hidden cost solution" in high-end manufacturing. Earlysun Technology firmly believes: True value lies in creating competitive advantages that exceed customer expectations.
"Earlysun Technology — Driving manufacturing upgrades with material innovation;
Making every weld a footnote of 'Precision Manufacturing';
Making every solder joint carry the promise of 'Reliable Quality'."


