Shenzhen FPC black hole line manufacturers on the characteristics of FPC and the basic structure of flexible circuit boards
Release time:
2020-05-21 14:24
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summary:
FPC in FPC black hole line is the abbreviation of Flexible Printed Circuit, also known as flexible circuit board, flexible printed circuit board, flexible circuit board, referred to as flexible board or FPC, which has the characteristics of high wiring density, light weight and thin thickness.
FPC black hole wireFPC is the abbreviation of Flexible Printed Circuit, also known as flexible circuit board, flexible printed circuit board, flexible circuit board, or FPC for short. It has the characteristics of high wiring density, light weight and thin thickness.
FPC flexible printed circuit is a highly reliable and excellent flexible printed circuit made of polyimide or polyester film as the base material. It has many advantages that hard printed circuit boards do not have. It can freely bend, roll and fold according to the requirements of space layout, and can move and expand in three-dimensional space at will, thus achieving the integration of component devices and wires. This kind of circuit can not only bend at will, but also has light weight, small size, good heat dissipation performance, easy installation, break through the traditional interconnection technology concept.
FPC can greatly reduce the volume of electronic products, suitable for the resistance products to high density, miniaturization, high reliability direction of development needs, therefore, FPC in aerospace, military, mobile communications, consumer electronics, industrial control, medical and other fields of products have been widely used.
FPC black hole wireThe basic structure of the flexible circuit board.
In recent years, with the widespread popularity of mobile products such as smart phones and tablet computers, flexible circuit boards that are not recognized by everyone are also widely used, but many people do not know much about the structure of FPC.
From the combination of flexible circuit board substrate and copper potting, it can be divided into flexible circuit board with glue and flexible circuit board without glue.
No glue type products. The price of glue-free flexible circuit boards is much more expensive than that of glue-free materials, mainly because the processing of glue-free substrates is difficult and complex. In terms of performance, adhesive-free FPC is better than adhesive products in terms of bonding force between copper foil and substrate and flatness of pad, and its flexibility is also better than that of adhesive products.
Although the flexible circuit board with glue is slightly inferior to the non-adhesive products in some aspects, because of its cheaper price, the performance is not much different from the non-adhesive products, and the general products are competent enough, so the vast majority of the flexible PCB used in the market still uses the adhesive material. Our company also mainly uses glue materials for production, but each customer has different requirements, and the materials are mainly selected according to the customer's needs.
The same as the hard board, the soft board is also divided into single-sided, double-sided, multi-layer board.
The general structure of single-sided board is: covering film (PI)/adhesive (ADH)/copper platinum (CU)/adhesive (ADH)/substrate (PI). Some special soft boards such as single-sided double contact (different panel) and single-sided hollow board (also have double-sided hollow circuit board) have only one layer of copper platinum.
General structure of double-sided board: cover film (PI)/adhesive (ADH)/copper platinum (CU)/adhesive (ADH)/substrate (PI)/adhesive (ADH)/copper platinum (CU)/adhesive (ADH)/cover film (PI), another layered flexible circuit board is combined with adhesive between two single-sided boards.
Multi-layer flexible board general structure: multiple single-sided or double-sided board with adhesive bonding.
Shenzhen FPC Black Hole Wire ManufacturersThe soft board is much more flexible in structure than the traditional PCB hard board. With the rapid development of science and technology, the soft board will involve more and more application fields, which will surely promote the development of the soft board market!
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