Precision PCB Fabrication, High-Frequency PCB, High-Speed PCB, Standard PCB, Multilayer PCB and PCB Assembly.
The most reliable PCB & PCBA custom service factory.
The use of multi-layer via boards is being recommended in high-speed PCB designs.
High-speed PCB design
For the first time, the multi-layer via board allocates the inner layer to the power supply and the ground specially. Therefore, it has the following advantages: ·The power supply is extremely stable; ·The impedance of the path is greatly increased; ·The wiring length is greatly extended.
Therefore, when thinking from a profit point of view, when comparing the profit with the opposite area, although the profit of the multi-layer via board is higher than that of the single-layer via board, it has not been considered when the other factors such as the mid-size of the via board and the convenience of increasing noise are taken into consideration., The profit difference between multi-layer via boards and single-layer via boards is not as high as expected.
According to the data we know, when purely planning the area profit of the access board, the area of the double-layer access cabinet that can be purchased per day is about 462mm2 inside and outside, and the 4-layer access board is 26mm2. That is to say, if you think of a different access, if you have a 4-layer access The use area of the board can be increased to 1/2 of the double-layer board, so that the profit is opposite to the double-layer access board.
Although batches of multi-layers will reflect the sectoral area profit of the access board, it has not yet caused a price difference of 4 times. If a price difference of more than 4 times occurs, only the method can be changed to expand the use area of the access board and change the method to reduce it. Up to 1/4 of the double-layer board is enough.
