Printed circuit board (PCB) is the most basic part of electronic equipment, it is a “bridge” between a ariety of electronic components and the electrical connection With the rapid development of electronic technology, people given the function on the PCB is more and more powerful, components and printed circuit density… Continue Reading Discussion on Design of Electromagnetic Compatibility of Digital Circuit PCB

FR-4 practical significance FR-4 is a code for the class of flame resistant materials, which means that the resin material through the combustion state must be able to self-extinguish a material specifications, it is not a material name, but a material grade. Therefore,the current general circuit board used FR-4 grade… Continue Reading Analysis on commonly used PCB substrate performance – FR4

Vertical layer orientation Bending strength A: Normal state: E-1/150,150±5℃≥340Mpa Parallel layer orientation the impact strength (simple beam method): ≥230KJ/m Insulation resistance after immersion(D-24/23): ≥5.0×108Ω Vertical layer orientation Electrical strength( In 90±2℃ transformer oil, board thickness:1mm ): ≥14.2MV/m Parallel layer orientation Breakdown voltage: ≥40KV Relative permittivity (50Hz):≤5.5 Relative permittivity (1MHz):≤5.5 Dielectric… Continue Reading FR-4 Performance characteristics

This type products were produced by the company has three substrate colors, namely, white, black and natural color. Mainly used in computers、LED industry、watches、general household electrical appliances and ordinary electronic products (such as VCD, DVD, toys, games, etc). Its main characteristics are better punching performance, suitable for large quantities of PCB… Continue Reading CEM-3 series CCL

FR4 CCL is the abbreviation of glass fiber epoxy CCL. FR-4 CCL is divided into the following grades FR-4 A1 grade CCL This grade CCL is mainly used for military、communications、computers、digital circuits、industrial instrumentation、automotive electronics and other electronic products. This grade CCL has widely application, the technical performance indicators all meet the… Continue Reading FR-4 grade distinguish