Insulating film
The insulating film forms the basic layer of the circuit, and the adhesive bonds the copper foil to the insulating layer. In a multi-layer design, it is bonded to the inner layer. They are also used as a protective cover to isolate the circuit from dust and moisture, and can reduce the stress during flexure. The copper foil forms a conductive layer
In some flexible circuits, rigid members formed of aluminum or stainless steel are used, which can provide dimensional stability, provide physical support for the placement of components and wires, and relieve stress. The adhesive bonds the rigid member and the flexible circuit together
Another material is sometimes used in flexible circuits. It is an adhesive layer, which is formed by coating adhesive on both sides of an insulating film. Adhesive layers provide environmental protection and electrical insulation, and can eliminate a thin film, and the ability to have multiple layers with fewer adhesive layers.
glue
In addition to the adhesive used to bond the insulating film to the conductive material, it can also be used as a cover layer, as a protective coating, and cover coating
The main difference between the two lies in the application method used. The cover layer is adhered to cover the insulating film to form a circuit with a laminated structure. Screen printing technology used for adhesive coating.
Not all laminate structures contain adhesives, and laminates without adhesives result in thinner circuits and greater flexibility
Compared with the laminated structure based on adhesive, it has better thermal conductivity. Due to the thin structure characteristics of the flexible circuit without adhesive, and because the thermal resistance of the adhesive is eliminated, thereby increasing the thermal conductivity, it can be used in a working environment where the flexible circuit based on the adhesive laminated structure cannot be used .
Saifu has a very mature process for FPC, with imported and domestic hydraulic components. Professional FPC cable engineers carry out product development and production, reasonably guarantee the quality of FPC, and the product fineness is far higher than the industry use standard.
Sayfu adopts professional process-based and dust-free workshop operations. Each process is equipped with professional operation instructions. There are many types of FPC cables, large inventory, and complete specifications.
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