PCB Design and Layout Services

PCB design and layout are critical to creating reliable and cost-effective circuit boards. The printed circuit board layout is reflected in its appearance, and its internal PCB layout is also critical. Only boards with the best electronic performance can be mass-produced. This requires careful management of library parts, CAD setup and parameters, component placement, trace routing, and Power Delivery Network (PDN) design. In addition, PCB layout design must ensure that all work processes are fully documented, and the final product needs to be included in the main electronic system it designs.

What we do?

We provide custom printed circuit board design and layout for various electronic systems and applications. You may have built a design schematic and are ready to begin the PCB layout, or you may wish to improve and optimize an existing design for cost-effective assembly. We can help you create PCB design from scratch, including high-speed PCB design layout, and provide technical consulting services to solve any technical difficulties. We can provide you with high-quality PCB design and layout services.

PCB Design Services

We will fully participate in your project according to your wishes and work with you from design to production to delivery. From reviewing your existing PCB design, laying out a board from your provided schematic, or walking with you through all the steps of our electronics manufacturing.

We’d love to manufacture it for you – but don’t worry, we’ll provide you with “no strings attached” PCB design services! We won’t let you sign a production contract with us in advance while we still design the PCB for you.

Our design deliverables include the standard full set of manufacturing files (PCB layout, Gerber files, drill files, XY data, BOM, and PCB specification details), so you can confidently choose us to manufacture your boards.
We hope our PCB design service can bring you to help because this is the driving force for us to keep moving forward!

PCB Layout

At IBE, we understand circuit boards, PCB layouts, and the challenges designers like you face every day when developing new, innovative electronic products. Our engineering team can help you make critical design decisions such as performance, availability, price, stack configuration, and component selection for sensitive circuits. We also have a range of powerful automation facilities for you to use in your PCB layout process, including many downloadable design rule information in CAD format.

Our goal is simple: manufacture printed circuit boards quickly and efficiently without manufacturing or assembly issues that can slow production. To this end, we are committed to helping all our customers through the best design practices of PCB layout.

Printed Circuit Board Optimization Services

Our PCB design services can be customized according to your expectations and needs. From component selection to PCB schematic design and PCB board layout to testing, verification, and certification, we are responsible for fully escorting your PCB design process and making your product development reach your desired state.

Printed Circuit Board Layout

After importing the schematic into the PCB layout, we will manually place the components on the PCB and start routing. In our PCB layout services, we run DFM/DFA analysis to minimize PCB design revisions, reduce manufacturing costs and compress time to market.

Printed Circuit Board Layout
Manufacturing and Testing

Manufacturing and Testing

Testing is critical in PCB design layout services and manufacturing phases. We provide manufacturers with the data and software they need to perform resistance and impedance testing. After the PCB prototype is manufactured, we test it in-house.

Technical specification

Technical specification

Writing project specifications is important to custom PCB design and layout services. It mainly includes technical requirements, block diagrams, deliverables, assumptions, bill of materials (BOM) and BOM cost, tools and techniques specified for project development, etc. This specification enables designers to agree with customers and meet customer expectations with quality PCB design services.

Technical Support

Once all projects are complete, we create a package that includes BOM and Gerber files, 3D models, technical manuals, and more. Additionally, we have drawn up a warranty period for our PCB design services. During the warranty period, we provide all technical support within the scope of the warranty. After the warranty period ends, we will contact customers and provide technical support anytime.

Technical Support

Schematic Design

The process of PCB board design starts with the schematic diagram. A schematic or circuit diagram makes the electrical connections between different electronic components. We use professional CAD software to make modules and design electrical connections between components to provide complete PCB design services.

Schematic Design
Mass Production

Mass Production

After the prototype verification is passed, we will prepare the documents for mass production and continue to assist customers throughout the manufacturing process. We prepare software, hardware, and test programs in advance so that manufacturers can use them to test each PCB at the factory.

Main Content:

PCB Design Steps

From PCB schematic design and PCB board layout to testing to final PCB production, PCB design plays a vital role in every step of the printed circuit board production process.

一、Basics of PCB design

A printed circuit board (PCB) is a flat or insulating base that contains conductive material and a pattern of components, and some projects can be complex. But all PCBs have to go through a certain stage – PCB design.

二、Schematic Diagram

The premise of PCB manufacturing is to design the circuit schematic diagram. The diagram contains all the relevant information needed for the proper functioning of the electrical components of the printed circuit board, along with details such as component names, values, ratings, and manufacturer part numbers. Every physical component (such as a resistor) used on a circuit board has an identifying symbol on the schematic representing that component.

The schematic is created in the electronic CAD system that designs the printed circuit board, and each component has its corresponding symbol on the schematic. The PCB designer places these symbols on the schematic in the CAD system and then draws lines between the components on the schematic to connect them.

三、PCB Layout

With all the symbols placed and the nets connected in the schematic, the board is ready for the physical design of the PCB layout. Component information from schematic symbols and net connections are converted to the data required for PCB layout. Before starting the PCB layout, the following steps need to be completed:

1. A model of the physical component needs to be created in the PCB layout tool. These models are called land patterns and will contain a representation of the metal pads to which the component pins will eventually also be soldered. They will also contain the component’s shape and specific electrical and 3D data.

2. The PCB layout must be done without any network connection. Otherwise, the net will short-circuit it when building the board. PCB design CAD tools have extensive rules and constraint systems built to control metal objects’ size and spacing to avoid short circuits. These rules must be set before the layout begins.

3. The physical shape and structure of the circuit board also need to be set in the layout database. They created an outline of the board in the CAD system and set the number of layers in the board and the stacking order.

四、Component Placement

The next step is component placement, which determines where each component will be placed on the board. We now associate the symbols in the schematic with the PCB packaging technology in the layout database to become PCB components. PCB layout and the way designers package these product components onto a circuit board in a CAD system typically control emissions in the following order of development:

1. Components such as connectors, switches, or other mechanical parts usually need to be placed in a specific location and should be placed first. This ensures they fit properly into the plug or opening in the system housing. Once these devices are placed in the layout database, the rest can be placed in their order.

2. Microprocessors, memory chips, power supplies, or other major board components are usually the next components to be placed. They must be placed close to their associated fixed parts but with enough room for others. Balancing circuit performance requirements and thermal management when placing these components is also important.

3. There will be additional components for power components, microprocessors, and storage devices. These supporting components are usually discrete, such as capacitors, resistors, and inductors, which must be placed close enough to work directly with critical components.

4. The final components in the layout may not necessarily directly support key components, but their placement may still be important for the correct operation of our entire system circuit. These problems may primarily consist of terminating resistors or bulk decoupling capacitors.

五、Via Routing

With the components in place, the next step is to connect the nets between the pins in a routing process. When the board is manufactured, these traces end up as the metal connections inside and on the board’s surface. A PCB design CAD system will display unconnected nets as straight lines, and the designer will use one of several different routing functions in the CAD system to create trace routing:

1. All design research tools allow user information to be selected as a network and its trajectory drawn manually. We do it by ourselves using straight lines or curves, right angles, or placing a hole on the board that can be called a via to transition to another layer.

2. Many CAD systems provide users with various versions of automatic routing. These different features can simultaneously route signal nets, parts of nets, or groups of nets.

3. These special functions combine manual routing with automated functions. Enables users to direct routing to where they want but rely on the system to route and obey signal integrity rules. These features can push out other routes and bypass dense routing areas requiring much manual effort.

4. These tools will automatically connect the entire board. Be careful, though, as CAD systems may not always produce the expected results. Here, experienced PCB designers will manually pre-route areas and build a complete list of routing rules before using automatic routing equipment.

六、PCB Design Final Steps

Although the functionality of the board is complete at this point, there are a few necessary steps to complete before fabrication:

1. Testing: To verify the assembly production process and the function of the circuit board, the completed circuit board will be run by analyzing various system test work. Test points must be assigned during PCB layout design to create the test technical documentation required for the test fixture.

2. Silk screen printing: To identify the completed circuit board and its components, ink marks and reference marks are required on the circuit board. The silkscreen layer is prepared in the CAD system as one of the final steps in the PCB layout.

3. Drawings: Both fabrication drawings and schematics are created by designers using PCB design tools. These drawings detail how the board should be made.

4. Final file generation: All board hardware dimensions, schematics, bills of materials, layout files, assembly drawings and instructions, component placement files, and other files will be collected into one PCB manufacturing file.

PCB Design and Layout Considerations

1. Design constraints

Technically, the first design constraints you should consider are those related to the bare board. There are some basic constraints, mainly the size and shape of the circuit board.

It would be best to ensure the board has enough circuit area. The size of the final product, the functions the board must provide, and other factors determine how large the board should be. Electronic products and the circuit boards they contain are getting smaller and smaller. Before starting the design, estimate the size of the board. If you don’t have enough headroom to implement all the features you need for a simpler design, you may need to use a multilayer or high-density interconnect (HDI) design.

A standard PCB design is rectangular.is still the most common PCB shape in most cases. However, other shapes of circuit boards can also be designed. PCB designers often encounter products of different sizes and irregular shapes.

2. Manufacturing Process

You should also consider the manufacturing process used to produce the board. Different methods have different limitations and limitations. You need to use reference holes or points in conjunction with the manufacturing process on the board. Always make sure there are no components in the holes.

Also, keep in mind the board mounting method. Different methods and ways require different board areas to be left open. Using different technology types, such as through-hole and surface-mount components, increases the cost of the board but may be necessary in specific cases.

Always check with your manufacturer to ensure they can produce the type of board you need. For example, some people may not be able to make boards with multiple layers or use flexible designs.

Stay in constant contact with your manufacturer to ensure they can produce the necessary boards.

3、Material Selection

It is important to consider the materials you plan to use for your board during the layout phase. Some materials are difficult to find, unsuitable for your board, and may cost more than your budget, driving up the cost. Different components and materials also have different design needs.

Choosing the best material for your circuit board before PCB design and layout is necessary, saving you costs and making your circuit board play the best function.

Rigid PCB: Made of a rigid material, most commonly FR-4, which can have multiple layers depending on the desired stack-up and board design.
Currently, PCB boards with up to one hundred layers can be designed!

Flexible PCB: These circuit boards are usually made of polyamide and sit on a flexible substrate to help with space constraints.

Rigid-Flex PCB: This type is a combination of the above types. In this type of board design, these two properties connect different rigid boards using a flex board.

3D PCB: These circuit boards feature the most advanced PCB designs. Also known as ad 3D-MID, PCB layout is done on a mechanical part or assembly with a special substrate.

4、Placement Order of Components

This can be an easily overlooked process, the most basic PCB design-the order in which components are placed on the board. Generally, we start with the connector, the power circuit, the precision circuit, the key circuit, and the rest of the components.

Using CAD to Solve PCB Design Problems

Today, most PCB designers use (CAD) software to make their PCB schematics. Likewise, analyzing your board with these systems can help you resolve many layout issues you may encounter. Some of the more obvious advantages of using these software systems:

Easy semi-automated design process: CAD programs let you drag and drop components where you want them placed. Many systems also build the trail for you, and you can then move, add or remove components at any time, or reroute them as needed. This approach can improve the efficiency and accuracy of the design process.

Design Verification: Before you finalize your design, ready for manufacturing, you can test your design drawings with a CAD system to verify that you are free of errors in tolerances, compatibility, component placement, and more. Many systems can even catch basic errors in real-time, minimizing errors.

Manufacturing File Generation: You can generate Gerber files and other file formats that may need to be sent to the manufacturer using a CAD system. Creating these documents directly from the design software increases their accuracy and ensures a smooth transition to manufacturing.

Documentation: You can also use these systems to generate and save detailed documentation related to component usage, bug reporting, design status, version control, and more. These will provide effective help for your future projects.

How to choose a PCB manufacturer supplier

Need a printed circuit board? IBE Electronics Co., Ltd is your best choice. We have a range of PCB capabilities to meet your project needs, and we pride ourselves on providing quality PCBA services. No matter which solution you choose, you can rest assured that you will receive the highest quality PCB products.

To learn more about our PCBA Services and how your product can be manufactured, please request a quote by detailing your project information, including Gerber files. We offer a free design check, so you must confirm that your PCB design is ready for production. Don’t hesitate to contact us to learn more about our manufacturing process.

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PCB Design and Layout

This article discusses various issues to consider when designing and laying out a PCB and some of the problems that a poorly designed PCB can cause. As technology continues to advance, so does the complexity of PCB layout. However, a good PCB design will produce a product with a high-quality printed circuit board. We hope this article has guided you to a good PCB design and layout.

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