PCB新聞 - PCB設計項目檢查表

1、檢查原理圖的合理性和正確性；

2、檢查原理圖組件包的正確性；

3. 强弱電流之間的距離, the distance between isolated areas;

4. 檢查示意圖和 PCB圖 correspondingly to prevent the loss of the network table;

5. Whether the package of the component is consistent with the actual product;

6. Whether the placement of the components is appropriate:

A. Whether the components are easy to install and remove;

B. Whether the temperature-sensitive element is too close to the heating element;

C. Whether the distance and direction of the components that can generate mutual inductance are appropriate;

D. Whether the placement between the connectors is smooth;

E. Easy to plug and unplug;

F. Input and output;

G. Strong current and weak current;

H. Whether digital and analog are interlaced;

I. Arrangement of elements on the upwind side and downwind side;

7. Whether the directional component has been wrongly flipped instead of rotated;

8. Whether the mounting holes of the component pins are suitable and whether it is easy to insert;

9. Check whether the empty pin of each component is normal and whether it is a missing wire;

10. 檢查同一網臺上下層是否有通孔, and the pads are connected through the holes to prevent disconnection and ensure the integrity of the circuit;

11. 檢查上下字元放置是否正確合理. 不要放置組件來覆蓋角色, so as to facilitate the operation of welding or maintenance personnel;

12. 上層和下層的非常重要的連接不應僅與串聯組件的焊盤連接, it is best to use vias;

13. The arrangement of power and signal wires in the socket should ensure signal integrity and anti-interference;

14. Pay attention to the proper ratio of pad and solder hole;

15. 插頭應放在 PCB板 as much as possible and easy to operate;

16. 檢查組件標籤是否與組件匹配, and the components should be placed in the same direction as possible and placed neatly;

17. 在不違反設計規則的情况下, the power and ground wires should be as thick as possible;

18. 在正常情况下, 上層應水准，下層應垂直, and the chamfer shall not be less than 90 degrees;

19. PCB上安裝孔的尺寸和分佈是否合適, and minimize the PCB bending stress;

20. Pay attention to the height distribution of the components on the PCB and the shape and size of the PCB to ensure easy assembly;

The above is the introduction of the PCB設計 項目檢查表. Ipcb還提供PCB製造商和PCB製造技術.