Printed circuit board materials: soft circuit boards, copper foil substrates, PI films, negatives, and other substrates. Please note three points when renting overseas warehouses for printed circuit board assembly.
An important aspect of flexible circuit boards (FPCs), PI films, negatives, and optoelectronic components is that adding a layer of resistive film between the flexible circuit board and PI film can cause static electricity problems, which can generally prevent the circuit board from being short circuited.
And the products can be compared: some brands of PCB boards, engineers are most likely to use this cheap material to make.
According to the requirements, we need to use materials as materials and then conduct inspections, which are often different from engineering materials.
Are there any special requirements, such as whether there are any special requirements, whether manually created PCB boards are used, and whether automated equipment is used for processing.
The process technology of this board is required to ensure that its general material can maintain stable performance for a long time under extremely harsh conditions.
Method 1: According to different products, it is divided into PCB boards that are selected, composed of components, drawn components, or designed according to requirements.

The design process of PCB includes: PCB schematic drawing, PCB layout design, DRC inspection, functional testing, layout and wiring, open and short circuit inspection, PCB design, SPC inspection, layout design, manufacturability design, logic analysis inspection, EDA inspection, etc.
According to the requirements, slice and sweep the surface of the circuit board separately to ensure the continuity of the top line.

Observe the device layout. Focus on placing the solder pads and routing of each layer within a certain reasonable range.
The control part (power supply base) adopts weak magnetic plates, and there is no ground wire around the block to avoid affecting the visual effect.
The minimum aperture (Via) of CB board (as shown in the figure) is 04mm, and the PAD of PCB board is 45mm.
The size and electrical connection of the assembly department have good flexibility, and in general, the accuracy of 05mm can reach 01mm;
The entire machine is made of Taiwan Gold Three Ring Alloy (office), with the largest printed circuit board and battery board;
Printed circuit boards are lead-free, environmentally friendly, smooth, and automated in production, capable of working 24 hours a day;
Printed circuit boards are lead-free, halogen-free, cadmium free, and lead-free, which solves the problem of lead in enterprises from the source and improves production efficiency.