Foshan FPC flexible circuit board hollow out board production process

FPC flexible circuit board hollow board is also known as flexible circuit board, is a kind of printed circuit with high reliability, excellent flexibility.  This FPC flexible circuit board hollow-out board circuit can be bent at will, folding light weight, small volume, good heat dissipation, easy installation and other advantages in the electronics and communications industry has been increasingly attached importance to and widely used.  

The production process of FPC flexible circuit board hollow-out board can be summarized as the following process:  

1. FPC flexible circuit board cutting: according to the required size of the base material into the preliminary cutting, size is required and its surface can not have creases, stains and so on.  

2. FPC FLEXIBLE CIRCUIT board CNC drilling: according to the design drawings of the aperture or flower pattern such as size and shape of the board into high-speed drilling.  

3. FPC flexible circuit board copper plating: the principle of chemical copper precipitation on the surface of the substrate and the surface of the copper hole plated with a thin layer of copper layer, and check its thickness, the requirements of the copper plating to be uniform and smooth.  And the appropriate chemical washing, will be easy to remove the surface.  

4. FPC flexible circuit board stick dry film.  

5. Exposure on both sides of FPC flexible circuit board: the semi-finished FPC flexible circuit board is placed under certain lighting conditions to detect whether there is a pinhole break, etc.  

6. FPC flexible circuit board development: display negative image.  

7. FPC flexible circuit board etching: remove the oxides and impurities on the hollow board surface of FPC flexible circuit board, enhance the adhesion ability of copper and the surface.  

8. Remove film and chemical cleaning: remove more than part of the dry film attached.

9. Paste protective film: the protective layer on the surface of hollow board of FPC flexible circuit board.  

10 lamination: the film is more firmly attached to the FPC flexible circuit board hollow-out board surface.  

11 plating lead or nickel gold: some need to increase the special function of FPC flexible circuit board hollow plate need to be plated with this metal to achieve.  

12. Cutting and punching shape: to deal with the appearance of hollow board of FPC flexible circuit board, whether there are burr, pull and other bad appearance phenomenon.  

13. Detection: the FPC flexible circuit board hollow-out board obtained by the system is tested and compared with the standard sample to see whether its appearance and performance are consistent.  

It can be seen that the production of FPC flexible circuit board hollow out board is the need to go through many complex process, the requirements of each process are very high and have a very important role in its molding.  Of course, with the continuous progress and maturity of technology, many technological processes can achieve one-step or complete automatic production in the future.