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Your PCB stackup is the foundation for your circuit board and will influence signal behavior. Your signals use internal plane layers as a potential reference, and your signal routing can be made easier with the right layer stack. In addition to determining the right arrangement of board layers, different board materials are placed in your PCB layer stack to satisfy calculations for power, impedance, and signal integrity.
Modern designs will use four layers at minimum, but boards with high net count and part count may need more layers to provide signal and power integrity as well as easy routing. To create the best layer stackup in PCB design, you need the best layer stack manager tools that are found in Altium Designer. The integrated field solver and impedance calculator will take your layer stack data and help you create a routing strategy to ensure signal integrity throughout your system. Here’s how Altium Designer can help you.
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The best PCB design software with CAD tools for PCB layout and PCB layer stack design.
Today’s PCB designer needs to create a layer stackup for a board before they create a PCB layout. To do this correctly and ensure signals on a PCB will behave as required, layout designers need to understand how the materials and geometry of a layer stackup in PCB design will affect signal behavior. Creating a PCB stackup requires the right PCB design tools for advanced devices.
Although your CAD tools will create the layer stackup that you configure it for, there’s more to creating a working stackup than pushing a few buttons. With its signature unified design environment, Altium Designer easily blends together every tool from schematic design to PCB layout and manufacturing. Altium Designer’s Layer Stack Manager tool gives you everything you need to create a PCB stack up for any kind of circuit board. Once you’ve finished your PCB layout, the documentation tools in Altium Designer help you prepare for manufacturing at scale. Your documents will include all your board data, including your PCB stackup construction.
Your printed circuit board will have outer layers for components, ground plane layers, at least one power plane, and multiple signal layers. Vias are used to connect your layers together for signal routing. Your layer stackup in PCB design needs to be carefully designed with specific layer thickness and copper placement in different layers.
The material properties of your PCB laminate need to be defined in your PCB stackup design tools. These material properties can be found in your PCB laminate datasheets and can be used in your simulation tools to help you analyze your board. Perhaps the most important parameter is the dielectric constant of your PCB, which will determine how signals behave as they move throughout your circuit board.
In the past, a PCB designer could choose the number of routing layers and plane layers they wanted using a stackup generator, and they could immediately start building their PCB layout. Today, many designs are so advanced that a layer stackup in PCB design needs to consider signal integrity, power integrity, and trace impedance. Before you start routing your board, consider how your signals will behave in your circuit board. Your layer stackup in PCB design will determine how signals propagate through the board and the impedance they see on your traces.
Altium Designer’s layer stack manager makes it easy to set up an impedance profile.
When you need to create your PCB layer stackup, the layer stack manager in Altium Designer lets you specify layer types, define dielectric and core layers, and configure their order in the PCB stackup. You can also specify the board materials from Altium Designer’s stackup materials library and their thicknesses in each layer. You can also specify drill pairs, back drill information, and plan sub-layer stacks for different board regions.
The layer stack manager in Altium Designer is a powerful tool that allows you to interactively design your PCB layer stackup. When you’re working with more advanced PCB designs, such as flex and rigid-flex PCBs, the layer stack manager in Altium Designer allows you to define flex regions in your circuit board to connect different sections into a complete PCB. These tools are easy to use and are accessible alongside the rest of your design tools.
Today’s complex high speed designs are easily handled by Altium Designer
Altium Designer gives you the most advanced layer stackup manager so that you can control the configuration of your PCB stack up with precision. Once you’ve built your PCB stackup, you can instantly capture your schematics as an initial PCB layout. You can then route traces between components, perform signal integrity simulations, and prepare your circuit board for manufacturing. Everything you need to design your circuit board and manufacture it at scale is included in Altium Designer.
Getting your design through to PCB fabrication is about more than just creating a circuit board layout. Your fabrication documentation needs to include your PCB stackup information to show blind vias and buried vias, component information, and copper placement. Altium Designer’s fabrication documentation tools take your PCB stackup data and your circuit board layout to create your documentation. You won’t need to use multiple programs to create your circuit board, run simulations, and generate documentation.
Altium Designer is the top choice for the professional PCB designer because it helps designers stay productive. You don’t need multiple tools from different vendors to design your circuit board any longer. All the design tools in Altium Designer are built to work together with seamless data exchange between different design features. This allows your routing tools to take data directly from your PCB stackup to create high quality circuit boards.
You can create high speed rigid-flex boards like this in Altium Designer.
When it’s up to you to design the latest circuit board with advanced technology, you don’t have to worry how you are going to configure your PCB stackup and board layers. Altium Designer’s advanced PCB stack up tools are ideal for creating powerful new technology. Stay productive and competitive when you use Altium Designer.
Altium Designer on Altium 365 delivers an unprecedented amount of integration to the electronics industry until now relegated to the world of software development, allowing designers to work from home and reach unprecedented levels of efficiency.
We have only scratched the surface of what is possible to do with Altium Designer on Altium 365. You can check the product page for a more in-depth feature description or one of the On-Demand Webinars.