1. In the PCB design layout, all components should be arranged on the same side of the circuit board. Only if the top components are too dense should some devices with limited height and low heat generation, such as chip resistors, chip capacitors, and chip ICs, be placed on the lower layer.
2. To ensure optimal electrical performance, components should be placed on a grid and arranged parallel or perpendicular to each other for a neat and aesthetically pleasing layout. Components should not overlap, and their arrangement should be compact with a uniform and dense distribution across the layout.
3. The minimum distance between adjacent land patterns of different components on the circuit board should be at least 1 mm.
4. The distance from the edge of the circuit board should generally be no less than 2 mm. The optimal shape of the circuit board is rectangular, with an aspect ratio of 3:2 or 4:3. When the size of the circuit board exceeds 200 mm by 150 mm, its mechanical strength should be considered.
In the layout design of the PCB, the units of the circuit board should be analyzed, and the layout design should be based on the starting function. When laying out all the components of the circuit, the following principles should be met:
1. Arrange the position of each functional circuit unit according to the circuit flow, ensuring the layout facilitates signal circulation and keeps signals moving in the same direction as much as possible.
2. Use the core components of each functional unit as the center and arrange other components around them. Components should be arranged uniformly, integrally, and compactly on the PCB to minimize and shorten the leads and connections between them.
How to control the quality of PCB circuit boards:
1. The concept of PCB circuit board proofing
1. What is PCB proofing? It refers to the process where, after an electronic engineer designs a circuit board, they place an order with a PCB manufacturer for a test run without committing to mass production. PCB proofing quantities are not fixed and vary. This stage occurs before the final design is confirmed and tested.
2. How to control the quality of PCB circuit boards? PCB proofing, before mass production, often has higher quality standards, faster delivery, and better performance. Independent testing by PCB manufacturers is crucial. Shenchuang Electronics, for instance, ensures quality through rigorous control measures.
**Stage 1: Quality Check**
Typically, electronic product manufacturers are aware that PCB circuit boards undergo processes like drilling and copper sinking, with quality checks at each stage. Each produced board is inspected carefully. However, why does Shenchuang Electronics sometimes face issues?
**Stage 2: Quality Manufacturing**
With years of electronic product development, quality checks and acceptance occur after manufacturing. Meeting timeliness and cost targets is challenging, leading to the need for robust quality control during PCB production. The production department also performs self-inspections.
**Stage 3: Quality Usage**
2. To ensure optimal electrical performance, components should be placed on a grid and arranged parallel or perpendicular to each other for a neat and aesthetically pleasing layout. Components should not overlap, and their arrangement should be compact with a uniform and dense distribution across the layout.
3. The minimum distance between adjacent land patterns of different components on the circuit board should be at least 1 mm.
4. The distance from the edge of the circuit board should generally be no less than 2 mm. The optimal shape of the circuit board is rectangular, with an aspect ratio of 3:2 or 4:3. When the size of the circuit board exceeds 200 mm by 150 mm, its mechanical strength should be considered.
In the layout design of the PCB, the units of the circuit board should be analyzed, and the layout design should be based on the starting function. When laying out all the components of the circuit, the following principles should be met:
1. Arrange the position of each functional circuit unit according to the circuit flow, ensuring the layout facilitates signal circulation and keeps signals moving in the same direction as much as possible.
2. Use the core components of each functional unit as the center and arrange other components around them. Components should be arranged uniformly, integrally, and compactly on the PCB to minimize and shorten the leads and connections between them.
How to control the quality of PCB circuit boards:
1. The concept of PCB circuit board proofing
1. What is PCB proofing? It refers to the process where, after an electronic engineer designs a circuit board, they place an order with a PCB manufacturer for a test run without committing to mass production. PCB proofing quantities are not fixed and vary. This stage occurs before the final design is confirmed and tested.
2. How to control the quality of PCB circuit boards? PCB proofing, before mass production, often has higher quality standards, faster delivery, and better performance. Independent testing by PCB manufacturers is crucial. Shenchuang Electronics, for instance, ensures quality through rigorous control measures.
**Stage 1: Quality Check**
Typically, electronic product manufacturers are aware that PCB circuit boards undergo processes like drilling and copper sinking, with quality checks at each stage. Each produced board is inspected carefully. However, why does Shenchuang Electronics sometimes face issues?
**Stage 2: Quality Manufacturing**
With years of electronic product development, quality checks and acceptance occur after manufacturing. Meeting timeliness and cost targets is challenging, leading to the need for robust quality control during PCB production. The production department also performs self-inspections.
**Stage 3: Quality Usage**
