PCB News - What are the basic links in the production of circuit board manufacturers

What are the basic links in the production of circuit board manufacturers

The production process technology of circuit board manufacturers is developing very fast, and the process technology used by circuit board manufacturers of different conditions and scales is not the same. Circuit board manufacturers of different types and requirements also need to adopt different manufacturing processes, but in these different process flows, there are many essential and basic links that are similar. The following is an introduction to the indispensable basic links by a well-known circuit board manufacturing company.

1, basemap film making

The base map film determines the graphics to be configured by the circuit board manufacturer during production. No matter what process is used to make the circuit board during the production process, the base map film that meets the quality requirements needs to be used. Therefore, the base map film is used when manufacturing the circuit board. An important tool of the company is also the first step in the manufacturing process.

2, chemical etching
Etching is commonly known as rotten board in the circuit board manufacturing process. It uses chemical methods to remove unnecessary copper foil on the board, leaving behind patterns such as pads, printed wires, and symbols. In order to ensure the quality, pre-etching should be carried out before etching, that is, to put the copper-clad plate with the printed resist pattern into the etching solution, take it out, and then use the pen or brush to dip the etching solution on the board. Swipe it horizontally and vertically to check the quality of graphics transfer.

3, graphics transfer
After the bottom plate is finished, the designed circuit diagram must be transferred to the copper-clad board. This link is called graphic transfer. When the circuit board is made, if the method of screen printing is used to transfer graphics, then a layer of paint film or glue film must be coated and adhered to the screen first, and then the printed circuit diagram should be made into a hollow pattern as required. When printing, just position the copper-clad plate on the bottom plate, let the silk screen and the copper-clad plate directly contact for printing, and then dry and repair the plate after missing printing.

All of the above are essential basic links for circuit board manufacturers in the PCB production. In order to ensure the production quality of the PCB board, the production company will take every production step seriously. After the etching is completed, the circuit board production company with guaranteed quality also needs to perform hole metalization and metal coating, and then perform effective welding to complete the entire Circuit board manufacturing process.