Monosized gold-coated polymer particles
Spherica® Au
Spherica® particles are designed specifically for applications within Anisotropic Conductive Films and Pastes (ACF/ACP). The flexible polymer core provides excellent bonding performance, and the nickel and gold coating ensures excellent electrical performance.
Monosized nickel-coated polymer particles
Spherica® Ni
Spherica® particles are a low-cost alternative to Spherica® Au, maintaining the good mechanical and electrical properties, whilst keeping cost down. Spherica® Ni products are targeted towards applications within Anisotropic Conductive Films and Pastes (ACF/ACP).
Product features
- Tailored mechanical properties of polymer core
- Excellent electrical performance
- Narrow size distribution
ACF/ACP working principle
- Chip is bonded to substrate using anisotropic conductive adhesive, applying pressure and heat.
- Particles are trapped between pads, ensuring electrical contact in vertical direction only.
- Adhesive is providing both mechanical strength and insulation between adjacent pads, avoiding short circuits.
Applications
- Displays for TVs, laptops, tablets and smartphones.
- Other application areas include CCD cameras and handheld devices, smart cards and RFID.
Examples of use
Chip-on-Glass (COG)
For display manufacturing, COG describes the connection between the driver IC and LCD glass substrate.
Flex-on-Glass (FOG)
FOG is the connection between flexible substrate, e.g. flex cable and glass substrate, commonly used in displays.
