What Is a Conductive Sheet?
A conductive sheet is a thin product made of an electrically conductive material.
Conductive sheets are flexible, thin, and lightweight, adapting to various shapes and curved surfaces. Their conductive properties enable the transmission and connection of electrical signals.
Additionally, conductive sheets may shield against electromagnetic waves, reducing surrounding electromagnetic influences and maintaining signal stability in electronic equipment.
Uses of Conductive Sheets
Conductive sheets have diverse applications, as detailed below:
1. Semiconductor Products
Conductive sheets are integral to semiconductor products, such as touch panel technology, where they detect finger and pen input. They also support LCD backlighting, providing electrical supply and wiring for light-emitting diodes (LEDs).
2. Manufacturing Facilities
In clean rooms of manufacturing plants for electronic substrates and semiconductors, conductive sheets prevent static electricity from damaging semiconductor devices.
3. Research and Development
Widely used in electronics R&D, conductive sheets are crucial in developing new devices, sensors, and flexible electronic devices.
Principle of Conductive Sheets
Conductive sheets feature a structure with uniformly dispersed conductive materials like microscopic particles or fibers, enabling free electron propagation. Common materials include metals like silver and copper, carbon nanotubes, and conductive inks. Some are made from antistatic resin or rubber sheets coated with conductive powder.
For base sheets made of cloth, conductive threads are woven into the fabric. Some products, to maintain flexibility, are laminated with flexible sheets.
Cleaning conductive sheets with detergent can restore their efficacy by removing dust and lowering surface resistance.
Types of Conductive Sheets
Conductive sheets vary in type, as outlined below:
1. Metal Conductive Sheet
Metal conductive sheets, mainly copper and aluminum, connect electrical circuits and contacts. These sheets are durable and withstand high temperatures.
2. Carbon Conductive Sheet
Carbon conductive sheets, made from carbon nanotubes and graphite, are flexible, making them ideal for flexible electronic devices and touch panels.
3. Conductive Ink Conductive Sheet
Conductive ink sheets are created by dispersing conductive particles or polymers in an ink medium. They are used for printing patterned conductive patterns or contacts.
4. Fiber Conductive Sheet
Fiber conductive sheets use metallic or carbon fibers. Their flexibility allows integration into wearable and smart textile products, offering both comfort and conductivity.