Ten Basic Rules For PCB Circuit Board Proofing

Do you know the ten basic rules for pcb circuit board proofing? Today, I will analyze it for you in detail, and I hope it will be helpful to you.

1. Choose the Right Grid - Set and always use a grid spacing that matches multiple components. Although multi-grid seems to be very effective, if engineers can think more in the early stage of pcb circuit board proofing layout design, they can avoid the problem of spacing setting and can apply the board well. Since many devices are available in multiple package sizes, engineers should use products that benefit their designs. In addition, polygons are critical for board copper deposition, and multi-mesh boards generally have polygon fill deviations when they are polygon-coated, which is not as standard as based on a single mesh, but provides board life beyond what is required .

2. Keep paths short and direct. This may sound simple, but it should be kept in mind at every stage, even if it means changing the board layout to optimize trace lengths. This also applies especially to analog and high-speed digital circuits where system performance is always partially limited by impedance and parasitics.

3. Use the power layer as much as possible to manage the distribution of power lines and ground lines. Power layer copper is a faster and simpler option for most pcb circuit board proofing design software. By connecting a large number of conductors in common, it is guaranteed to provide current with good efficiency and low impedance or voltage drop, while providing an adequate ground return path. If possible, you can also run multiple power supply lines in the same area of the circuit board to confirm whether the ground layer covers most of the layers of a certain layer of the pcb circuit board proofing, which is conducive to the interaction between the running lines on adjacent layers.

4. Group the relevant components together with the desired test points. For example: placing the discrete components required for an OpAmp op amp closer to the device so that the bypass capacitors and resistors can co-locate with it helps optimize the trace lengths mentioned in Rule 2, while also enabling testing and fault detection made easier.

5. Repeat the required circuit board on another larger circuit board for pcb circuit board proofing and imposition. Choosing the right size for the manufacturer's equipment can help reduce prototyping and manufacturing costs. Start by laying out the board on the panels, contact the board manufacturer for their select size specifications for each panel, then modify your design specifications and try to repeat your design as many times as possible within those panel sizes.

6. Integrate component values. As a designer, you will choose some discrete components with higher or lower component values, but with the same performance. By consolidating within a smaller range of standard values, bills of materials can be simplified and costs can be potentially reduced. If you have a range of pcb circuit board proofs based on selected device values, it will also help you make the right inventory management decisions in the longer run.

7. Perform as many Design Rule Checks (DRCs) as possible. Although it takes only a short time to run the DRC function on pcb proofing software, in more complex design environments, as long as you always perform checks during the design process, you can save a lot of time, which is a good habit to keep . Every routing decision is critical, and you can always be reminded of those important routings by performing DRC.

8. Flexible use of screen printing. Screen printing can be used to label a variety of useful information for future use by circuit board manufacturers, service or test engineers, installers or equipment debuggers. Not only clearly labeled functional and test points, but also the orientation of components and connectors where possible, even if these annotations are printed on the underside of the components used on the board (after board assembly). The full application of screen printing technology on the upper and lower surfaces of the circuit board can reduce duplication of work and streamline the production process.

9. Decoupling capacitors are required. Don't try to optimize your design by avoiding decoupling power lines and sticking to the limits in the component datasheet. Capacitors are inexpensive and durable, and you can take as much time as you can to get them assembled, while following rule number six and using standard value ranges to keep your inventory tidy.

10. Generate pcb circuit board proofing manufacturing parameters and verify before submitting for production. While most board manufacturers are happy to just download and verify it for you, export the Gerber file yourself first and check with a free viewer that it works as expected to avoid misunderstandings. By verifying for yourself, you may even spot some inadvertent errors, and thus avoid the loss of production by follow