The PCB production process mainly includes steps such as design, graphic conversion, plate making, etching, drilling, coating, soldering, testing, and cleaning.

　　design phase

　　The design phase is the starting point of PCB production, where CAD software is used to design circuit schematics and PCB layouts, determining information such as PCB board dimensions, wiring methods, and pad sizes.

　　Graphic Conversion Stage

　　After the design is completed, it is necessary to convert the circuit schematic and PCB layout into Gerber files for plate making and etching processes.

　　Plate making stage

　　Plate making is the core process in PCB production, which involves converting Gerber files into photoresist film, and then transferring the photoresist film pattern onto copper foil through exposure, development, and other processes to create the circuit and graphics of the PCB board.

　　Etching stage

　　Etching is the process of removing unwanted copper foil parts by immersing the plated copper foil in an etchant, waiting for a certain period of time, and then etching off the excess copper foil to form the circuit and pattern of the PCB board.

　　Drilling stage

　　Drilling refers to drilling various holes on a PCB board, including pad holes, positioning holes, mounting holes, etc. Drilling requires the use of a drilling machine or drilling machine for operation.

　　Coating stage

　　Coating is the process of removing the photoresist film from the copper-clad laminate, and then covering it with a layer of solder film through drying, exposure, and other processes for subsequent welding operations.

　　Welding stage

　　Welding is the process of installing components onto a PCB board and performing welding. During the welding process, it is necessary to use a soldering iron or welding equipment for operation.

　　Testing phase

　　Testing is the process of quality inspection of PCB boards after welding, mainly including AOI testing, X-ray testing, ICT testing, etc.

　　Cleaning stage

　　Cleaning is the process of thoroughly cleaning the soldered PCB board for subsequent packaging and assembly operations.