Single PCB production process, how to draw a single PCB?

With the continuous innovation and development of electronic information technology in our country, pcb stackup calculator single-chip microcomputer can be used as a major control chip in the study of society, and has been widely used in embedded system, communication network equipment, and control ability of home appliance enterprises. The application of MCU is inseparable from the Printed Circuit Board (PCB) circuit board support. This paper will introduce the production process of single-chip microcomputer PCB board, and analyze the detailed design instructions for students how to draw single-chip microcomputer PCB board.

Single PCB production process

1. Schematic design

Single PCB production process, how to draw a single PCB?

The design of the PCB board must be based on the schematic diagram, so the schematic diagram must be designed first. 1 oz vs 2 oz In the process of designing the schematic diagram, it is necessary to select the corresponding device, connect its pins, and mark the necessary connection circuit.

2. PCB layout design

After the schematic can be designed work is completed, students are required to carry out PCB circuit board wiring system design. The design of wiring technology should consider the factors such as impedance matching, electromagnetic compatibility and main current distribution between the development of each device, and strengthen the shielding between adjacent discrete device structures in China to avoid problems caused by mutual interference. In addition, in the wiring design, the limitation of the overall board size should also be fully considered to ensure that the board quality is excellent.

Single PCB production process, how to draw a single PCB?

3. Print PCB graphics

According to the PCB layout design, PCB graphics can be printed. In the process of printing graphics, it is necessary to use circuit routing software to convert the schematic into PCB graphics. In the process of printing graphics, it is necessary to select PCB materials, determine the direction of the line, delineate the location of the device, draw the position of the standard hole, and label the electrical information.

4. Row cables and drill holes

Once the PCB graphics are complete, you can lay out the cables and drill holes. In this process, the graphics need to be translated into the actual operation of the board. Ribbon arrangement means that the wire in the circuit is directly expanded from the PCB pattern with the solidifying machine, pasted on the board with copper sheet, and welded to the required position; Drilling refers to making pre-marked holes in the circuit board.

5. Circuit board cutting and surface treatment

After the wiring and drilling are completed, the enterprise needs to cut the control circuit board and process the surface information. Circuit board cutting refers to the research and cutting of the circuit board according to the size data we need, and the surface and processing technology refers to the treatment of the surface of the circuit board in order to improve the welding of semiconductor chips and other devices.

6. Weld components

After the circuit board is cut and surface machined, the components can be welded. In welding, the solder and the component need to be fused to ensure that the component and the circuit board match.

7. Test the circuit board

After the board is welded, it needs to be tested to ensure that it is working properly. If there is a problem, you need to investigate the problem and make the necessary modifications to the board.