How to make a circuit board? What are the steps?
The name of the circuit board is: PCB board, aluminum substrate, high frequency board, PCB, ultra-thin pwb board, ultra-thin printed circuit board, printing (copper etching technology pcb board, etc. The rigid-flex pcb makes the circuit miniaturized and visualized. It plays an important role in mass production of fixed circuits and optimization of electrical layout.
1. According to the spacing of the components and pins used, draw the wiring diagram 1:1 according to the circuit schematic diagram.
2. Cuttingthe copper plate (which can be purchased online) to the required size. Clean the copper surface with decontamination powder or clean. If there is oxidation, it needs to be polished with very fine sandpaper.
3.Drawingthe painted wiring diagram and use carbon paper to draw the copper surface of the circuit board.
4.With a very fine brush, trace the mixed paint over the lines drawn on the copper plate.Solder joint, dip the match head with paint point, can form the pad.
5.After the paint is completely dry, trim the lines with a knife to make it as straight as possible without burrs.
6. Dilutingthe block of ferric chloride (available at chemical paint shops) with hot water. The water temperature is about 40 degrees. Pour into a corrosion-resistant vessel, put the circuit board that has been naturally dried, and lightly shake to speed up corrosion. Waitinguntil the bare copper portion without lines is completely corroded and rinse off with water.
7. Scrubbingthe paint on the circuit board with banana water, and then drill the hole at the pad with a drill with a diameter of 0.6-1 mm.
8.Apply a rosin alcohol flux to the finished board.
Quality derives from profession, reputation wins the future.
FASTPCBA Technology Co., Ltd，owns leading quality control inspection equipment and high-standard anti-static as well as dust-free workshop production environment in electron industry. By virtue of 0.1mm laser drilling, 100% AOI detection between layers, tightly controlled multi-layer compression equipment, super-speed flying-probe tester, and the quality of PCB is guaranteed powerfully from hardware and details. All components are supplied by world famous brand manufacturers, of which lead-free paste insures high-quality welding and lead-free standard. The auxiliary materials abide strictly by the international ROHS standard, and 3% silver content ensures the stability of tin plating. The placement speed of 70000 points per hour, accurately welding 0201 size components, identifying BGA with 0.25mm distance and connector with 0.2mm distance, detection by IQC before production, LCR equipment testing of components, and AOI detection before production makes our product process getting to advanced world level. Industrial control equipment devices main board with big components can be easily accomplished on plug-in production line. Industrial control and welding of a small number of large components including equipment products can be accomplished on plug-in production line. The QA report before shipment and strict control for each production process ensure high-quality and stability of each product. Without any secrets, we just concentrate on every detail.
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