PCB Tech - How to make flexible wire board FPC proofing board

Flexible circuit board (FPC): To make a good quality FPC board, there must be a complete and reasonable production process. From pre-processing before production to final shipment, every procedure must be strictly implemented. In the production process, in order to prevent the excessive opening and cause the yield rate to be too low or reduce the problem of the scrap and replenishment of the FPC board caused by the process problems such as drilling, calendering, and cutting, and to evaluate how to select the material to achieve the customer's use The flexible wire board with better effect. Pre-natal pretreatment is especially important. Pre-natal pretreatment, there are three aspects that need to be dealt with, and all three aspects are completed by engineers. The first is the FPC board engineering evaluation, mainly to evaluate whether the customer's FPC board can be produced, whether the FPC company's production capacity can meet the customer's board-making requirements and unit cost;

if the engineering evaluation passes, the next step is to prepare materials immediately to meet each production The supply of raw materials in the link. Finally, the engineer processes the customer’s CAD structure drawing, gerber line data and other engineering documents to suit the production and production specifications of the production equipment, and then delegates the production drawings and MI (engineering process card) to the The production department, document control, purchasing and other departments enter the regular production process. FPC production process: Surface treatment: Immersion gold, anti-oxidation, gold plating, tin spraying. Shape treatment: manual shape, CNC (numerical control machine) cutting, laser cutting. Substrate copper thickness: 1/3 ounce, 1/ 2 ounces, 1 ounces, 2 ounces, 4 ounces line width and line spacing: the narrowest 0.065mm anchor point folding edit this section of the flexible line board (FPC) tester according to the characteristics of the material of the flexible board and the field of wide application, in order to more Effectively save volume and reach a certain degree, so that the characteristics of three-dimensional space and thin thickness can be better applied to digital products, mobile phones and notebook computers. The instrument used for FPC testing is an optical image measuring instrument. The characteristics of the flexible circuit board (FPC): ⒈short: short assembly time, all configurations are completed. Eliminates the need to connect extra cables ⒉Small: the volume is smaller than the PCB, which can effectively reduce the product volume. Increase the convenience of carrying ⒊ light: weight Lighter than PCB (hard board) can reduce the weight of the final product. 4 Thinner: thinner than PCB can increase flexibility. Strengthen the development of flexible circuit board (FPC) assembly that uses three-dimensional space in a limited space: based on the vastness of China's FPC In the market, large companies in Japan, the United States, and the region have all set up factories in China. By 2012, flexible wiring boards, like rigid wiring boards, have achieved great development. However, if a new FPC product is started-developed-decay-eliminated, FPC is now in the area between decline and decline. Before there is no product that can replace the flexible board, the flexible board must continue to occupy the circuit board market share. It must be innovative, and only innovation can make it break out of this vicious circle.