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Last updated on 2024年9月10日

What are the best circuit design practices for easy manufacturing?

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If you are an electronic engineer, you know that circuit design is not only about functionality and performance, but also about manufacturability and cost. How can you optimize your circuit design for easy and efficient manufacturing, without compromising on quality and reliability? In this article, we will share some of the best circuit design practices that can help you achieve this goal.

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Pete Houwen

Sr. PCB Designer at Checkpoint Systems
Apurv Jaiswal

Hardware Engineer III at Honeywell Aerospace
Raviteja Cherukuri

Co-founder | chief Hardware Engineer

1 Use standard components

One of the simplest ways to make your circuit design more manufacturable is to use standard components that are widely available and compatible with common assembly processes. Standard components have lower costs, shorter lead times, and higher quality than custom or obsolete parts. They also reduce the risk of errors, defects, and delays in production. You can find standard components from various sources, such as online catalogs, reference designs, or industry standards.

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Raviteja Cherukuri

Co-founder | chief Hardware Engineer
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Points to follow for reduce the manufacturing errors 1. Keep an eye on Moisture Sensitivity Level(MSL)level, if chosen incorrectly then might face manufacturing issues like Cold Joints 2. Inquire with manufacture for minimum size of components they can handle 3. Always have Alternate Parts numbers in ready 4. Last but not least establish good communication with the manufacturers 5. Discuss about the Stack of the PCB 6. Share the DRC report with the manufacturer 7. If possible ask the manufacturer for DFM report.

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Nayyier Wajih Kazi

Helping semiconductor test industry to achieve 98% high-performance PCB layout designs on time, every time with advanced noise reduction techniques using latest CAD/Simulation tools, BOOK FREE PCB DESIGN CONSULTATION.
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Now we are in the age of AI there are tools like ORCAD X has integrated DFM rules in there constraint manager so once it is set by design manager in the software the software will not allow to make the manufacturing difficult.

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Leonardo Morato Bence

Electronic Engineer | Hardware design
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Utilizar componentes padr?o é essencial dentro do mercado competitivo, para fazer isso talvez seja necessário a modifica??o de seu projeto utilizando resistores mais comuns, capacitores mais padronizados ou até mesmo circuitos integrados mais comuns, mesmo que isso suba um pouco a complexidade do circuito em alguns aspectos (como o uso de mais componentes para realizar a mesma fun??o que um componente especifico) ou a redu??o com a padroniza??o de resistores e capacitores quando possível, o que pode reduzir a qualidade do projeto em alguns casos. As situa??es variam dependendo do mercado que você está, podendo determinados componentes serem mais comuns em seu país do que em outros países.

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2 Minimize complexity

Another way to improve your circuit design for manufacturing is to minimize its complexity and reduce the number of components, connections, and layers. Complexity increases the chances of errors, failures, and rework, as well as the time and cost of testing and debugging. By simplifying your circuit design, you can make it easier to manufacture, assemble, and maintain. You can minimize complexity by using modular design, avoiding unnecessary features, and eliminating redundant or unused parts.

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3 Follow design rules

Design rules are guidelines that specify the minimum and maximum dimensions, clearances, tolerances, and other parameters for your circuit design. They are based on the capabilities and limitations of the manufacturing equipment and processes, as well as the quality and reliability requirements. By following design rules, you can ensure that your circuit design is feasible, consistent, and compatible with the manufacturing process. You can find design rules from your manufacturer, software tool, or industry standard.

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Pete Houwen

Sr. PCB Designer at Checkpoint Systems
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Why? Follow the design rules, keep that spacing greater than 5 mils. Why? Because that's what the board shop asked for. Why? It's simple to just set the router to DRC on and route. But why are those numbers in the rules? Why does the fabricator want that 5 mils? There will be times when you just have to bend those rules. That's when you need to know the ramifications of your "bend". Is it even possible? Go visit a fabrication shop. Go visit an assembly house. Talk to their engineers and operators, ask them "why?". Learn what reduces yield, increases cost, reduces reliability. What do they see in a design that makes them worry, or makes them confident? Hear their horror stories, so you won't be one. Just keep asking questions.

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Mattias Nordlund

Senior PCB Designer
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First, determine which design rules will be needed for the design to be created. Then you choose a PCB manufacturer that is capable of manufacturing a board based on these rules.

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Andy McGhee

Hardware Engineer at EO Charging
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I agree that the designs should be constrained by capability and cost (where possible), but we should be using metric these days.

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4 Optimize layout

Layout is the arrangement of components, traces, vias, pads, and other elements on your circuit board. It affects the performance, functionality, and manufacturability of your circuit design. To optimize your layout for manufacturing, you should consider factors such as component placement, trace routing, signal integrity, power distribution, thermal management, and mechanical stress. You should also use design for manufacturing (DFM) tools and checklists to verify your layout against the design rules and identify any potential issues.

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5 Test and verify

The final step to ensure your circuit design is ready for manufacturing is to test and verify its functionality, performance, and compliance. Testing and verification can help you detect and correct any errors, defects, or deviations in your circuit design before they cause problems in production. You can use various methods to test and verify your circuit design, such as simulation, prototyping, debugging, inspection, or certification. You should also document your test results and feedback for future reference and improvement.

By following these best circuit design practices, you can make your circuit design more manufacturable and cost-effective, while maintaining high quality and reliability. You can also save time and money in the manufacturing process and reduce the risk of failures and rework. These practices can help you create better products and services for your customers and stakeholders.

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6 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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Apurv Jaiswal

Hardware Engineer III at Honeywell Aerospace
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Signal Integrity is also an important factor here for easy manufacturing - Controlled Impedance: For high-speed signals, ensure that traces have controlled impedance. This often requires specific trace widths and spacing, and a consistent dielectric thickness in multi-layer boards (especially in aero products) Minimize Crosstalk: Route high-speed signals away from noise-sensitive traces and use differential pairs where applicable. Proper Termination: Apply appropriate signal termination techniques to prevent reflections and maintain signal integrity.

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What are the best circuit design practices for easy manufacturing?

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3

4

5

6

1 Use standard components

2 Minimize complexity

3 Follow design rules

4 Optimize layout

5 Test and verify

6 Here’s what else to consider

Electronic Engineering

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What are the best circuit design practices for easy manufacturing?

1

2

3

4

5

6

1 Use standard components

2 Minimize complexity

3 Follow design rules

4 Optimize layout

5 Test and verify

6 Here’s what else to consider

Electronic Engineering

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