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Newer PCBs are rarely designed on one or two layer boards. With the high density of connections and the number of components that are used in modern PCBs, your next design will probably be a multilayer PCB. If your next device has an odd form factor, then you will probably be using a rigid-flex PCB. Both of these types of PCBs require the right stackup procedure. This means you need PCB design software with an intuitive stackup manager. When you work with Altium Designer, your multilayer stackup easily synchronizes directly into your PCB layout.
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A PCB design software package with the best multilayer PCB stackup management tools.
The best multilayer stackup strategy for your next device depends on a number of factors. No stackup strategy will be able to accommodate every design, routing, or EMC requirement simultaneously. Your multilayer PCB device application will also determine the best layer stackup strategy in your multilayer PCB. When you work in an integrated design environment, you’ll have access to the best stackup tools that communicate directly with your layout, simulation, and rules checking features.
With any circuit board, you’re going to have to plan out component and copper placement. Even a single layer printed circuit won’t go into PCB manufacturing without significant planning going into the board layout. PCB design requires consistent caretaking of component placement throughout the design of your circuit, and will continue to be so as you move into multilayer PCBs. Double-sided PCB and Multilayer PCBs just enable things like buried vias, keeping track of holes, and planning for thickness and outer layers.
Planning your stackup strategy in your next multilayer PCB will typically alternate between signal and power/ground planes, with each layer separated by either dielectric core or prepreg. Rigid-flex PCBs are inherently multilayer boards that come with their own stackup requirements. The goal is to suppress EMI and crosstalk between layers while simultaneously allowing for efficient routing between layers.
Multilayer PCB design is as much an art as it is a science, and your entire design process will depend on your layer arrangement. You’ll need to include vias to route between layers, choose an appropriate power/ground plane pair arrangement, and generate deliverables with all of your information for your manufacturer. All of this is possible when you work with the best PCB design software with an excellent layer stack manager.
The layer stackup editor in Altium Designer
Routing in your multilayer PCB requires judicious use of vias in our to pass signals between layers. Certain layout rules need to be followed, depending on your layer stackup. The right stackup strategy can reduce crosstalk and suppress EMI in your signal layers, ensuring that your signals will remain stable against external fields and noise. You’ll want to make sure your circuit board is safe before copper placement so as to avoid wasting time and money.
Rigid-flex PCBs are inherently multilayer devices, and many of the same design strategies that apply to a typical multilayer board also apply to rigid-flex PCBs. Some design guidelines on a flex ribbon or even on a flex PCB need to be considered before jumping into this less common area of PCB design. Your design software should be material agnostic, giving you the ability to implement all the best design features on any board, regardless of stackup strategy.
Once you’ve designed your layer stack around your particular application, it’s time to implement it in your PCB design software. You’ll need an intuitive layer stack manager that allows you to visually examine your layer stackup. You shouldn’t be limited to FR4; your stackup manager should allow you to use any material. Since routing between layers requires vias, your design software needs to integrate via definitions into your board layout.
Polygon pour editing in Altium Designer
Multilayer stackup is just the first step in multilayer PCB design. You need tools to define your board size, capture your schematic, accurately place components, route your traces, and manage your component data. Since multilayer PCBs tend to operate at high speed, high density, and/or high frequency, simulation and analysis tools can help you validate your designs and diagnose signal problems before you move to production.
Altium Designer gives you access to the best layer stackup, CAD, and simulation tools, and all within a unified design environment. Your simulation and analysis tools interface perfectly with your layout editor, giving you the power to fully analyze your multilayer PCB and bring it closer to perfection. When you move to production, Altium Designer generates manufacturing outputs, bills of materials, and Gerber files for your manufacturer, and all within a single software platform. Any PCB manufacturer will be happy to work with your circuits during the manufacturing process.
Forget about moving between multiple modules or programs when working on your designs. Your design software should give you the capabilities to access any of the tools you need within a single interface. Other design environments claim to be unified, yet you still have to move between modules and purchase critical features as add-ons. You’ll have the power to design top-quality mulitlayer PCBs when all your design tools are integrated into a single platform.
Working in a unified design environment gives you access to all the tools you need to design the best PCBs within a single design platform. You’ll have access to the best CAD, schematic capture, routing, and data management tools without having to move between different programs or modules. All of these features are integrated within your design rule checking features, ensuring that your next design will be a success.
Whether you need to build a simple board with one layer, a multi-board PCB with multiple layers, or anything in between, a great PCB design software package like Altium Designer contains all the tools you need. You’ll have access to all the simulation tools demanded by the PCB design industry in Altium Designer.