Circuit board factory to give you how to make circuit boards

Circuit board factory to give you how to make circuit boards

According to the circuit function need to design schematics. The design of the schematic diagram is based on the electrical performance of the components according to the need for reasonable structures, through the map can accurately reflect the important function of the PCB circuit board, and the relationship between the various components. Schematic design is the PCB production process in the first step, is also a very important step. The software used to design the circuit schematic is PROTEL.

After the schematic design is complete, a further step is required to encapsulate the individual components via PROTEL to generate and implement a grid with the same appearance and size of the component. After the component package is modified, execute the Edit / Set Preferences / pin 1 setting the package reference point on the first pin. Then also execute the report / component rule check to set the rules to check exactly, and OK. At this point, the package is established.

Formally generated PCB. After the network is generated, it is necessary to place the position of the individual components according to the size of the PCB panel. It is necessary to ensure that the leads of the individual components do not intersect when placed. After the components are placed, the final DRC check to exclude the individual components in the wiring when the pin or lead cross error, when all the errors are excluded, a complete PCB design process is completed

Using a special copy of the paper will be designed to complete the PCB map through the inkjet printer print output, and then printed on the side of the circuit with the copper plate relative compression, and finally placed on the heat exchanger for hot printing, through the high temperature will be on the copy paper Circuit diagram ink stick to the copper plate.

Plate preparation of the solution, the sulfuric acid and hydrogen peroxide by 3: 1 modulation, and then will contain the copper plate into it, so three to four minutes or so, and other copper on the place except the ink all the corrosion, the copper Remove the water and rinse the solution.

Punching. The use of drilling machine will need to stay on the hole in the hole on the hole, after the completion of the matching components from the back of the copper plate will be two or more lead, and then use welding tools to welding components on the copper plate.

After the welding work is completed, the entire circuit board for a comprehensive test work, if the test process problems, you need to design the first step to determine the location of the problem, and then re-welding or replacement of components. When the test passed, the entire circuit board was finished.