PCBニュース - PCB設計におけるPCB配線パターン検査

1) Is the wire short and straight without sacrificing functionality?
2) Did you comply with the restrictions on wire width?
3) Between the wires, ワイヤーと取付穴の間に, ワイヤとパッドの間に...保証されなければならない最小のワイヤ間隔はありますか?
4) Have you avoided all the wires (including component leads) that are relatively close in parallel?
5) Are sharp corners (90°C or less than 90°C) avoided in the wire pattern?

PCB設計 project check list
1. Check the rationality and correctness of the schematic diagram;
2. Check the correctness of the component package of the schematic diagram;
3. The distance between strong and weak current and the distance between isolated areas;
4. 回路図の対応検査 PCBダイアグラム to prevent the loss of the network table;
5. Whether the package of the component is consistent with the actual product;
6. Is the placement of the components appropriate:
A. Whether the components are easy to install and disassemble;
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 line;
10. 同じネットテーブルの上下の層にバイアホールがあるかどうかをチェックする, and the pads are connected through the holes to prevent disconnection and ensure the integrity of the circuit;
11. 上下の層の文字が正しく配置されているかどうかをチェックします, 文字を隠すために部品を入れないでください, so as to facilitate the operation of welding or maintenance personnel;
12. 非常に重要な上部および下層のラインの接続は、インラインコンポーネントのパッドと接続されてはならない, it is best to use vias to connect;
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 pads and solder holes;
15. プラグは、の端に配置する必要があります PCBボード as much as possible and easy to operate;
16. コンポーネントラベルがコンポーネントに一致するかどうかを確認する, and the components should be placed in the same direction as possible and placed neatly;
17. 設計規則違反, the power and ground wires should be as thick as possible;
18. 平常に, 水平線は上層に使用され、垂直線は下層に使用される, and the chamfer is not less than 90 degrees;
19. PCB上の取付穴のサイズと分布が適切かどうか, and minimize the bending stress of the PCB;
20. PCB上のコンポーネントの高および低分布に注意し、PCBの形状とサイズを簡単にアセンブリを確保するために注意してください