PUR Hot Melt Adhesive: The “Flexible Bonding Expert” in Electronics Manufacturing
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LINGWO Electrically Conductive Adhesives: Advanced Materials for Precision Electrical Connection & Shielding
In modern highly integrated electronic devices, reliable electrical connections, effective electromagnetic shielding (EMI/RFI), and precision component assembly are critical to product success. The LINGWO Electrically Conductive Adhesives series is a specialized bonding material developed precisely to address these complex needs. By incorporating a high loading of conductive particles (such as silver, copper, nickel, or carbon-based materials) into a high-performance resin matrix, it achieves the perfect union of structural bonding and stable electrical conduction or shielding effectiveness.
As experts in electronic interconnect materials, LINGWO deeply understands the multi-dimensional requirements for conductive performance stability, bonding reliability, and process adaptability—from microelectronic packaging to large-scale equipment grounding systems. We offer a complete portfolio of conductive adhesives, covering Isotropic Conductive Adhesives (ICAs), Anisotropic Conductive Adhesives/Films (ACAs/ACFs), Conductive Silver Pastes, and EMI Shielding Gasketing Compounds. Whether you need omnidirectional conduction for grounding bonds or precise vertical-only conduction for fine-pitch circuit connections (e.g., display driver IC bonding), we can provide customized formulations and process support to ensure the perfect balance of electrical and mechanical properties.
1. Excellent and Stable Electrical Performance
Broad Volume Resistivity Range: Covers isotropic conduction from 10^-3 to 10^-1 Ω·cm, and provides anisotropic connections with Z-axis conduction and XY-axis insulation.
Superior Conductive Durability: Stable conductive pathways under long-term damp heat aging, thermal cycling, and mechanical stress, with low resistance change rates, ensuring long-term reliability of electrical connections.
High-Efficiency EMI Shielding: Shielding compounds with high filler loading can provide over 60 dB of shielding effectiveness, effectively protecting sensitive circuits from electromagnetic interference.
2. Reliable Mechanical and Process Performance
Strong Structural Adhesion: Provides excellent bond strength to substrates like metals, ceramics, glass, and various plastics while enabling conduction. Some products can replace solder or micro-fasteners.
Fine Printing and Dispensing Processability: Available in various viscosities and rheologies—from pastes (inks) suitable for screen printing to fluids suitable for precision dispensing—meeting different production line process needs.
Flexible Curing Mechanisms: Supports thermal cure, ultraviolet (UV) cure, or dual-cure mechanisms, accommodating assembly of heat-sensitive components or scenarios pursuing high-efficiency production.
3. Primary Professional Series
Isotropic Conductive Adhesive (ICA) Series: Conductive in all X, Y, Z directions. Primarily used for grounding bonds, conductive structural bonding, EMI shielding gap filling, and circuit repair.
Anisotropic Conductive Adhesive/Film (ACA/ACF) Series: Conducts only under vertical (Z-axis) pressure while insulating in the lateral plane. Specifically designed for fine-pitch circuit interconnections, such as bonding flexible printed circuits (FPC) to glass (COG), FPC to PCB (COF), and radio-frequency identification (RFID) antenna connections.
Conductive Silver Paste Series: Uses silver powder as the primary filler, offering excellent conductivity. Suitable for printed electrodes, membrane switches, solar cell grid lines, and forming highly reliable contact points.
EMI Shielding Gasketing Compound Series: Combines conductivity with elastic sealing functions. Used for electromagnetic sealing of equipment housing gaps, replacing metal gaskets or conductive fabric, achieving better environmental sealing and longer service life.
Consumer Electronics & Displays: Smartphone/tablet antenna grounding, camera module conductive bonding, touch panel FPC bonding (ACF), display driver IC bonding (COG/COF), housing gap EMI shielding.
Automotive Electronics: Automotive display bonding, sensor conductive mounting, electromagnetic shielding and grounding of control units (ECUs), signal harness connections within battery packs.
Medical & Wearable Devices: Bioelectrode bonding, micro-sensor packaging and electrical interconnection, antenna fixation and conduction in wearable devices.
Industrial & Communications: RF module shielding, filter bonding and grounding, PCB-mounted shield can fixation, membrane switches for industrial control panels.
New Energy & Power: Photovoltaic cell interconnection silver paste, auxiliary electrical connections within power modules.
Example 1: General-Purpose Isotropic Conductive Silver Adhesive (Thermal Cure)
| Item | Parameter / Description |
|---|---|
| Main Composition | Epoxy resin, flake/spherical silver powder |
| Appearance | Grey/Silver Paste |
| Volume Resistivity | < 5.0 x 10^-4 Ω·cm |
| Viscosity | 15,000 – 45,000 cP (adjustable) |
| Curing Condition | 120°C / 30 min or 150°C / 10 min |
| Shear Strength (Steel-Steel) | ≥ 15 MPa |
| Operating Temperature | -40°C ~ +150°C |
| Storage Condition | Store cool (<10°C), protected from light |
| Packaging | Syringes (5g, 30g), Jars |
Example 2: Anisotropic Conductive Film (ACF)
| Item | Parameter / Description |
|---|---|
| Main Composition | Epoxy resin, monodisperse conductive microspheres |
| Appearance | Dry film with release liner |
| Conductive Particle Diameter | 3 μm, 5 μm, 8 μm (options) |
| Bonding Temp./Pressure/Time | 180-200°C / 1-3 MPa / 5-10 sec |
| Z-Axis Contact Resistance | < 50 mΩ (per bump) |
| XY-Plane Insulation Resistance | > 10^9 Ω |
| Film Thickness | 15 μm, 20 μm, 30 μm (options) |
| Applicable Line/Space | Down to 20 μm / 20 μm |
| Packaging | Rolls (custom width) |
We firmly believe successful electrical interconnection solutions begin with systematic consideration of current paths, signal integrity, and environmental stress. The LINGWO team is committed to being your co-creation partner in this field:
Free Technical Consultation & Solution Evaluation: Recommends the optimal conductive adhesive type and specifications based on your connection needs (conduction, shielding, fine pitch), substrates, and process conditions.
Process Development & Parameter Optimization: Assists in developing or optimizing dispensing, printing, or thermal press bonding process parameters, including reliability validation testing.
Customized Formulation Development: Initiates dedicated R&D projects for specific resistivity requirements, cure speed, low-halogen/halogen-free requirements, or extreme environmental resistance.
Contact a LINGWO Technical Consultant now, and let our conductive interconnection technology build a solid foundation for the signal integrity and electromagnetic compatibility of your products.
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