PCB Design Perspective - FS Technology

2022-07-16 18:33:48

Posted by FSPCBA

Category: 国内市況

PCB Design Perspective - FS Technology

As the best circuit board manufacturer in China, I think we have a duty and responsibility to share our circuit board design knowledge with the public.

https://fspcba-s-school.teachable.com/p/pcb-circuit-board-design-software-fs-technology


1. We need to generate the NCDrill exercise file.
2. It requires layering with a top/middle/bottom line.
3. FS technology believes that the electrical layer is also important, including the VCC layer and the GND layer.
4. Layer Printing Layer includes surface printing/bottom surface printing.
5. Layer Mask Layer includes upper welding mask layer and lower welding mask layer.

2. As Split/Mix if we turn off the power. In the AddDocument window, select Reduce as a file type and use the PourManager air connection before each map file in the output lightmap. If it is set to CAMplane. For the layer in settings, you need to add the plane to Layer25; Select Pads and Vias on Layer25.

3. Click Device Settings and change the Aperture value to 199 in the Device Settings window.

4. Select BoardOutline when aligning each layer.

5. In setting the silk screen layer; Do not select the share type; Select the main silk screen layer and the text line.

6. In the Layer Mask setting, select Across; So it shows no layer mask. Whiskey is usually sealed with a single layer seal.

https://sites.google.com/view/fspcba/home/pcb-design/pbc-circuit-board-design-software


PCB EMI design using FS technology

“As IC device integration advances, materials become smaller and device speeds increase, and EMI becomes a problem in electronic products. "From an EMC/EMI design perspective, system equipment EMC is addressed during the design process." . "The problem with EMI devices is that a PCB control system is the most efficient and cost-effective way to achieve electrical compatibility."
To overcome this EMI problem, FS technology provides a step-by-step process for designing EMI in PCB design.

1. IC handling.

Make sure each IC has a 0.1µF breakdown capacitor in the power box. The BGA chip requires 0.1µF and 0.01µF capacitors at the four corners of the BGA. Special care must be taken to increase the number of filters such as VTT to the signal voltage, which has a significant effect on not only stability but also EMI. In general, chip manufacturers still require decoupling capacitors.

2. It should be placed clockwise. FS believes that the following points should be considered.

1. It is recommended to draw a clockwise line first.

2. If the hour line is greater than 12 inches. If the frequency is higher than 20M, the number of pulses should not exceed 2.

3. For clock lines with frequency less than 66M; The number of pulses should not exceed 3.

https://diasporabr.com.br/posts/5450896


4. For clock lines with a frequency greater than or equal to 66M; The number of pulses is not more than 2.

5. In principle, a clockwise line cannot cross the island.
As a rule, not all clockwise lines pass through the islands. The junction of the three islands is shown below.

5.1 When there is a connection between the electric island and the electric island. The clockwise line is the fourth floor; From the third electricity floor (electric floor), you have to go through the two electricity islands and the fourth floor to Ai Pangti. . Two islands

5.2 When there is a gap between the island and the level. In this case, the clockwise line goes from the first floor to the middle of the second floor.
There is an island in the middle and the first floor wire must go through that island through the ground wire plug.

https://kakuyomu.jp/works/16817139556150453772/episodes/16817139556150469464

Copper is not covered below the 5.3 hour line. If the weather is limited, it is impossible to cross the island. Ensure that clock lines with frequencies higher than 66M do not cross islands. If the frequency line below 66M passes through the island, a break capacitor should be added to provide a glass path. . Second option and when facing an island, choose to cut the island once.

Best PCB Circuit Board for Consumers - FS Technology

Tag： pcb，pcba