As a platform for the transmission of numerous components and circuit signals, printed circuit boards (PCBs) have always been considered a key part of electronic information products, and good printed circuit board component products have these considerations. The denser the pads of single and double-sided boards with a spacing of 01mm, the better. Generally, the proportion of components between 03-05mm in a single PCB panel is 188%, while a single panel is one tenth of a typical motherboard. The proportion of components with a spacing of 02mm and double panels between 03-05mm is 331%, while the proportion of components with double-sided panels, single panel, and double-sided panels is 2:3. The volume of PCB mounted components is relatively large, with the same face, multi-layer board, single and double-sided PCB, and high multi-layer board PCB. Its total order of magnitude is in the size of 10 microns. At present, with the continuous development of various electronic products, there is a higher demand for PCBs, ranging from power supplies, communication equipment, automobiles, and other circuit boards.

Through the above description, I believe everyone can have an understanding of the use and functions of PCB knowledge. I hope it will be helpful to everyone. If you have any other areas that you do not understand, please feel free to leave a message and communicate with us!
If there are no special components on the circuit board, or if there are no issues with the appearance, it is best to find a technician to handle them.
As shown in the above figure, heating the circuit board diagram to the set temperature through an oil cup, pasting the SMD screen printing, and then pasting it back through a 45 degree angle line can obtain a complete network.

Place the components according to the design drawings, lay them out according to their location map, and seek the help of a technician for design.
Minimum volume, 04mm (0805Mpa), 05mm (other pad sizes can be designed according to customer requirements);
● The maximum size support is 635 (maximum thickness: 32mm) and 445 (minimum width: 32mm);
Material: SI model: SI304 (D), SI model: SI201 (B), SI305 (D), SI331 (SI815 (D), SI389 (SI38 (D)), SI116 (D), SI158 (D), SI563 (D), SI8045 (D), SI92 (D), SI512 (D), SI6215 (D), SI7241 (D), SI5282 (D), SI8175 (D), SI7108 (D), SI2269 (D), SI1018 (D), SI2272 (D), etc.
Abstract 2: SI6221 is a pulse width modulation signal modulator that can synthesize synchronous signals with input signal waveforms.