Product Overview

FPC (Flexible Printed Circuit Board) is a type of printed circuit board made from flexible base materials and featuring graphics, consisting of insulating base materials and conductive layers Impedance FPC boards, on the other hand, are FPC boards with specific requirements for characteristic impedance. At a certain frequency, the resistance encountered by high-frequency signals electromagnetic waves during transmission in electronic device transmission lines, relative to a reference layer, is referred to as characteristic impedance. It is a vector sum of resistance, inductance, and capac.

Product Types
The company specializes in the production and sale of various types of FPC flexible circuit boards, including FPC ribbon cables, modules, back, capacitive touch screens, multilayer stratified, buttons, antennas, battery protection boards, etc.

Product Characteristics
Physical Characteristics Maximum processing can reach 250mm x 1200mm; minimum line width and spacing of 0.05mm/0.05mm (2mil2mil); etching tolerance of ±0.5mil; exposure registration tolerance of ±0.05mm (2mil); PI film registration tolerance <0.10 (4mil); minimum line spacing of 0.075 – 0.09MM; minimum drill hole diameter of 0.1mm; base material copper thicknesses of 18μ (1/2OZ), 35μ (1OZ), 70μ (2OZ), etc. reinforcement and adhesive film registration tolerance <0.1mm (4mil); polyimide/polyester base material thicknesses of 0.025mm – 0125mm.
Performance Characteristics It has excellent bending resistance and chemical resistance, conforming to international printed circuit FPC standards; solder resistance of 105280 – 360; insulation resistance between 50Ω – 120Ω; thermal shock resistance of 85 – 105℃280℃ – 360℃; finished boards have certain bending resistance and peel strength, suitable for different types such as single-sided boards, double-sided boards multilayer boards, and rigid-flex boards.

Product Uses
FPC ribbon cables have a certain degree of flexibility and are used to connect related parts products. They have been widely used in many products such as photocopiers and laptops. In addition, impedance FPC boards are widely used in automotive navigation, beauty devices, LCD, and other fields, providing stable signal transmission and electrical connection solutions for various electronic devices.

Production Manufacturing
(a) Production Process
Material Selection: There are types and production processes for FPC materials, including electroplated copper, rolled copper, with and without glue, etc. When choosing substrates for high-frequency PCBs, special should be paid to the DK characteristics of the materials under different frequencies; for requirements that focus on high-speed signal transmission or characteristic impedance control, DF and its performance under such as frequency, temperature, and humidity should be examined. General-purpose substrate materials exhibit different performance when the frequency changes.
Process Flow
Material input: The type of board, board thickness, and copper foil thickness must be produced according to MI requirements.
Special requirements: Impedance boards should not be produced by pressing the core board by themselves or micro-etching the copper surface.
Key process control: For example, when increasing the number of bends, special control is required during the production, especially during the electroating copper process.
Production Equipment and Technology
The company has advanced production equipment and a professional technical team. For example, in the production of multilayer differential characteristic FPC, a processing device for multilayer differential characteristic impedance FPC production is used. The