1. The code for a flame-resistant material grade, represented by the mean resin material after combustion, must be able to specify a material’s properties. It is not a material name, but rather a classification of materials. Therefore, the general FR-4 grade materials used in circuit boards come in various types, with most being based on a composite of epoxy resin, filler, and glass fiber known as the “four functions” (Tera-Functions).
2. A type of heat-curing material commonly used in the PCB industry is epoxy resin, which undergoes polymerization reactions. Its functional features include electrical insulation, serving as an adhesive between copper foil and reinforcement (typically glass fiber cloth), and resistance to electricity, heat, chemicals, and water.
3. Glass fiber cloth is an inorganic material formed by fusing at high temperatures and cooling into an amorphous hard substance. It is then woven together by warp and weft yarns to create a reinforcing material. Common specifications for E-glass fiber cloth include: 106, 1080, 3313, 2116, and 7628.
4. The substrate for these materials is typically aluminum, which consists of a copper skin, insulating layer, and aluminum sheet. It is increasingly utilized in the LED lighting industry due to its excellent heat dissipation performance.
2. A type of heat-curing material commonly used in the PCB industry is epoxy resin, which undergoes polymerization reactions. Its functional features include electrical insulation, serving as an adhesive between copper foil and reinforcement (typically glass fiber cloth), and resistance to electricity, heat, chemicals, and water.
3. Glass fiber cloth is an inorganic material formed by fusing at high temperatures and cooling into an amorphous hard substance. It is then woven together by warp and weft yarns to create a reinforcing material. Common specifications for E-glass fiber cloth include: 106, 1080, 3313, 2116, and 7628.
4. The substrate for these materials is typically aluminum, which consists of a copper skin, insulating layer, and aluminum sheet. It is increasingly utilized in the LED lighting industry due to its excellent heat dissipation performance.
