In the electronics industry, almost all electrical appliances use circuit boards, and pcb circuit boards are the heart of all electrical appliances; they are an indispensable electronic component. Today, the editor of senyan Circuits will bring you 12 steps in the process of making circuit boards:
1.Engineering data evaluation of pcb circuit boards: Customers place orders to draw customized circuit boards, send them to engineers for evaluation, and then optimize the engineering data of pcb circuit boards provided by customers;, provide technical guarantee and support for pcb production lines.
2. Preparation for material cutting: Zhizhichuang Circuits all use three major domestic plates: Guoji, Kingboard, and Shengyi (choose one; according to customer requirements), all of which are mechanized and precisely cut, and good products start from the source.
3. Drilling: All imported precision high-speed drilling rigs are used, the production area is large, and the 8-axis drill bit is drilled at the same time; the efficiency and quality are guaranteed at the same time, and the auxiliary process is used to ensure the roughness of the hollow wall to facilitate subsequent production.
4. Copper immersion: The factory uses automatic immersion copper wire operation; reducing manual work and improving quality stability, professional operators monitor the concentration of I to be input in real time to ensure production.
5. Graphic transfer: Imported film laminating machine and dry film production are used, and pins are aligned to ensure the line distance at the wire diameter level.
6. Electroplating: chemical production is used to thicken the copper-level copper on the hole to ensure the best electrical performance of the pcb board.
7. AOI optical inspection: quality inspection before candle engraving, to ensure a one-time pass rate, using well-known foreign imported equipment.
8. Convert from the customer's original file to a film negative, and package after inspection to prepare for the transfer of graphics in the subsequent process.
9. Silk screen text: The automatic text screen printing machine is used to ensure the clarity and three-dimensional sense of the text, and it is convenient for SMT welding.
10. Surface treatment: The general surface treatment of pcb circuit board factory includes lead HASL, lead-free HASL, immersion gold, OSP anti-oxidation, gold plating, immersion tin, immersion silver immersion nickel, bare copper and selective board. material.
11. CNC forming: the introduction of high-precision computer numerical control CNC to ensure the tolerance level of PCB board appearance and appearance, and improve production efficiency at the same time (a large quantity requires mold opening).
12. Circuit board final inspection test: This is the end process of the production line. All use the high-speed flying probe tester-level special test frame tester. The high-speed tester is also the most equipped equipment for most PCB manufacturers at present. The starting price is expensive, and the efficiency of nitrogen detection is beyond the reach of ordinary equipment.
