What are the PCB design challenges faced by PCB circuit board manufacturers?

 

 

 

1. Continually shrinking feature sizes, as well as the effects of Moore's Law, make the signal transmission rate higher and higher, the edges more steep, so that the transmission line effect can no longer be avoided, the signal on the signal line can no longer be seen as ideal numbers Signals, but should be treated as microwaves, which led to the "black schematic", the logic of a simple schematic can not guarantee the correct implementation of the signal;

 

 

 

2. More and more powerful circuit functions increase the degree of integration of the single board, but the production process level cannot be improved immediately due to the limitation of production equipment, resulting in CAD design meeting the current level of technology and increasing design challenges;

 

 

 

3, control costs lead to the number of layers of the board can not be increased infinitely with the increase in density, and try to use low-cost devices, such as the use of ordinary 2mm connector instead of high-speed differential line dedicated connector, resulting in greater EMC and system signal integrity challenge;

 

 

 

4. Severe market competition has led to a shortened product development cycle. There has been no redundant time and financial resources for continuous repeated development. The single board must be as successful as possible. Therefore, in the first design, it must be considered. Productivity, testability, maintainability, and certification of market access through various professional organizations.