Shenzhen common four FPC flexible circuit board
1, single flexible plate
Lowest cost. When the electrical performance requirements are not high, and can be single-sided wiring, should choose single-sided flexible board. This most common form has found commercial applications, such as ink cartridges for printers and memory for computers. The single flexible plate has a layer of chemically etched conductive pattern, and the conductive pattern layer on the flexible insulating substrate is calendered copper foil. Insulating substrates used for flexible assembly can be polyimide (Kapton), polyethylene terephthalate (PET), aromatic amide fiber paper (Nomex) and polyvinyl chloride (PVC).
2, double sided flexible board
The double-sided flexible plate is a conductive pattern etched on each side of the base film. Metallized holes connect the shapes on both sides of the insulating material to form conductive paths to meet the design and use of flexure. And the covering film can protect the single and double - sided wire and indicate the position of the element.
3, multi-layer flexible plate
Multi-layer flexible board is three or more layers of single-sided flexible circuit board or double-sided flexible circuit board laminated together, through drilling, electroplating to form a metallized hole, in different layers to form a conductive path. In this way, there is no need to use complex welding process. Although the number of conductive layers designed to be of this flexible type can be unlimited, the interaction of assembly size, layers and flexibility should be taken into account when designing the layout to ensure convenient assembly.
4. Rigid-flex combination
Traditional rigid flexible plates are composed of rigid and flexible substrates pressed together by selective layers. Compact structure with conductive connections formed by metallized holes. For reliability and price considerations, manufacturers should try to keep as few layers as possible.
Four common flexible circuit boards
HDI rigid-flexible board: High Density Interconnection (HDI) rigid-flexible printed circuit board is a high-end printed circuit board product. Its goal is to meet the growing needs of electronic products toward miniaturization, High frequency, High speed and multi-function. HDI rigid flexible combined board has the advantages of popular HDI board and rigid flexible combined board, which promotes the high integration and high intelligence growth of electronic system design and production. It has been widely used in high-end electronic products such as aerospace skills, medical equipment and cost.