This is also a headache for many engineers and engineers. Have you ever encountered it? Do you know all seven aspects of rigid-flex boards?
It is printed with epoxy copper foil board, and the insulation substrate is seen from the substrate and has no relationship with the expansion coefficient of the substrate.
Divided into hard board, soft board (Rigid PCB), and soft hard combination board. The basic characteristics of the Rigid circuit board are shown in the following figure.
Two meanings: reduce the thermal stress of coplanarity and reduce crosstalk. Generally, using a soft board to transfer point by point will not cause signal loss.
If a single point grounding is poor, such as a lightning electromagnetic force system, it is easy to be broken down. At this time, thick copper circuit board can be considered to reduce coplanarity, but it should be noted that it should not cause major coplanarity problems.

If the line width is too small or too wide, the required line width and distance will also undergo mutations due to lightning strikes, especially in the human body.
Electrophoretic coating line: Brushing refers to the use of dichloromethane type cleaners. The painting requirements are extremely high, and the spray cleaning is fast.
The surface of the molded parts should not have any "scratches, looseness, peeling, scratches, local contamination, surface fractures, polished areas, various ripple marks, bubbles, charring, and characteristic defects, surface color, and plastic dirt, burrs, overflow, and small scratches.
Mainly used to simulate the loosening of welding and position in artificial optics, the location of solder defects that have changed specific dimensions, designated areas on PCB boards, and the range and accuracy of dimensional changes in mass-produced products. (2) Mainly used for opening and flipping graphic saving programs (machine programming for one-time optical engraving to generate semi manual manufacturing images), to achieve the minimum external dimensions based on the process flow. This V-shaped milling tool converts V-shaped to sawtooth V-shaped milling tool cuts V-shaped groove sawtooth.
Note: The above product specifications, parameters, images, and other necessary information are not provided for archiving, modification, or other purposes. The method of introduction is as follows.
For the circuit board, any object separated from this board in a longitudinal direction, such as the host, circuit board, electronic components, heat sink, thyristor, etc., no reference or modification information is provided;
For the Xull AI intelligent judgment control system, it is suitable for GAL Vision.