Flexible printed circuit

The Flexible printed circuit Board, as known as "soft board" or FPC, a flexible printed circuit made of an insulating substrate. Compare to the additional PCB, The advantage of FPC cables are higher density , light weight and more thinner.

Flexible printed circuit is a highly reliable, excellent flexible printed circuit board polyimide or polyester film to the substrate made ​​of. Referred to as soft board or FPC, a high wiring density, light weight, thin features. Mainly used in mobile phones, laptops, PDA, digital camera, LCM, and many other products.

Make a fine texture of the FPC board must have a complete and reasonable production process, from pre-production to the final pre-processing ship, every program must be rigorous execution. In the production process, in order to prevent a short circuit caused by excessive open low yield or reduce drilling, rolling, cutting and other problems caused by the process of FPC board scrap, feeding problems, and assess how the selection order to reach customers flexible circuit boards for best results. Prenatal pretreatment is particularly important.

Prenatal pretreatment, there are three aspects need to be addressed, these three aspects are done by engineers. The first is the FPC board engineering evaluation, mainly to assess whether the customer can produce FPC board, whether the company's production capacity to meet customer requirements and system board unit costs; If engineering assessment by the next immediate preparation is required to meet various production processes raw material supply, and finally, engineer: customer CAD diagram, gerber line data processing and other construction documents to suit the production environment and production specifications of production equipment, and production drawings and MI (Engineering Process cards) and other information delegated to production departments and document control, purchasing, etc., into the conventional production processes.

Dual-panel system:

Drilling is expected to open → → → PTH → plating pretreatment paste dry → → → exposure → developed on the bit pattern plating → ​​→ → Tuomo paste dry before treatment → → → developing counterpoint exposure Tuomo → → → etched surface treatment → stickers covering film suppress → curing → ENIG printed characters → → → electrical measuring shear punching → ​​→ → Packaging → ​​shipment final inspection

Single panel system:

Drilling is expected to open → → → paste dry counterpoint → exposure → development → etched surface treatment → → → Tuomo stickers cover film suppress → curing → surface treatment → ENIG printed characters → → → measuring shear punch → cut → → Packaging → ​​shipment final inspection

Surface treatment: Immersion Gold, oxidation, gold, HAL

Outline treatment: hand shape, CNC (CNC machine tools) cutting, laser cutting

Primary Copper thickness: 1/3 oz, 1/2 oz, 1 oz, 2 oz, 4 oz

The flexible printed circuit material characteristics and application fields, in order to more effectively reach a certain volume and savings accuracy, making three-dimensional features and thin thickness better applied to digital products, mobile phones and laptop computers. Flexible circuit board (FPC) to detect the use of equipment for the optical image measuring instrument.

Feature
1. short: short assembly steps

All lines are configured. Eliminates excess cable to connect the work of

2. small: small volume PCB

Can effectively reduce the volume of the products. Added convenience to carry on

3. Light: Light weight ratio of PCB (hard board)

Can reduce the weight of the final product

4. thin: thin PCB thickness ratio

Can improve softness. Strengthen the re-assembled as a three-dimensional space is limited.

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