When selecting anisotropic conductive adhesives (ACA) suitable for specific products, Fitech leverages technological innovation and industry expertise to deliver high-performance solutions for ultra-fine pitch connections, flexible electronics packaging, and high-frequency signal transmission. Key advantages include:

I. Ultra-Fine Pitch Interconnects: Nanoscale Conductive Particles Push Boundaries

Fitech's proprietary sub-micron conductive particles (500-2000nm gold/silver-coated) enable reliable connections at pitches below 30μm, meeting high-density demands for advanced packaging (e.g., COF, SiP). Core innovations include:

Flat Design: Maximizes particle contact area with resistivity as low as 10⁻⁴ Ω·cm, significantly enhancing high-frequency signal (5G, RF) transmission efficiency.

Core-Shell Structure: Metal-coated polymer cores reduce density and improve dispersion, balancing cost and performance while optimizing conductive pathways.

II. Flexible Electronics Packaging: Low-Temperature Curing & Highly Flexible Matrix

Addressing flexibility and process compatibility requirements for flexible electronics (FPC, OLED displays), Fitech introduces low-temperature curing ACF (150-180°C) with advantages including:

Thermally Sensitive Material Compatibility: Prevents high-temperature damage to plastics and flexible substrates, ensuring component integrity.

Composite Matrix: Polyurethane/acrylic matrix combines high peel strength (≥15 N/m) with flexibility, withstanding repeated bending to extend product lifespan.

III. High-Frequency Signal Transmission: Low Resistance & Moisture/Heat Resistance

Fitech enhances ACA conductivity and reliability through material optimization:

Low resistivity: Resistivity controlled at 10⁻³–10⁻⁴ Ω·cm. Flat particles and core-shell structure reduce creep threshold, minimizing material usage.

Moisture/heat resistance: Utilizes low-moisture-absorption epoxy resin and gold-plated particles. Passes dual 85 tests (85°C/85% RH, 1000 hours) with resistance change rate <5%, meeting stringent automotive-grade requirements.

IV. Process Adaptability: Efficient Dispensing & Rapid Curing

Fitech ACA demonstrates high process stability and efficiency:

High thixotropy (>4): Supports spot/line dispensing for complex structural components.

Rapid curing: Press-to-cure time reduced to 4–6 seconds. Combined with low-temperature curing, it boosts production line efficiency and lowers energy consumption.

Precision Alignment: Achieves ±3μm alignment accuracy in LCD driver chip bonding, reducing conduction failure rates.

V. Application Coverage: Consumer Electronics and Automotive Electronics

Consumer Electronics

Flexible OLED Screens: Low-modulus substrate withstands repeated bending, offering superior resistance stability over traditional materials.

TWS Earbud Charging Cases: Ultra-fine pitch ACF enables miniaturized designs while ensuring charging efficiency.

Automotive Electronics

In-vehicle display COG bonding: Moisture-resistant ACA certified to AEC-Q100, withstands high-temperature/humidity environment degradation.

Battery Management System (BMS): High-reliability ACA ensures stable current transmission, reducing thermal runaway risk.

VI. Cost & Environmental Sustainability: Coating Optimization & Green Materials

Coating Design: Utilizes core-shell structures like gold/silver-copper-nickel-tin particles, balancing conductivity and cost for mid-to-low-end products.

Eco-Friendly Materials: Halogen-free flame retardants (phosphorus-based compounds) and bio-based resins (soybean epoxy) reduce petroleum dependency while complying with RoHS regulations.

VII. Supplier Advantages: Technical Independence and Customization Services

As a leading domestic microelectronics materials enterprise, Fitech's core competitiveness lies in:

Full-chain Technical Independence: Mastery of core technologies spanning conductive particle synthesis to matrix development.

Mass Production Stability: ACA products maintain storage stability exceeding 3 months with consistently reliable quality.

Customized Solutions: Tailored support through adjustment of conductive particle types, matrix materials, and curing conditions based on client requirements.