Key Takeaways
- Select an EDA package that supports multiple types of PCBs, including rigid, flex, and rigid-flex designs
- Prioritize library-driven flow to prevent schematic, layout, and BOM synchronization errors
- Connect to supply chain data to avoid designing with out-of-stock parts
- Export in IPC-2581 or ODB++ to minimize fabrication miscommunications
- Choose tools with advanced constraint management to support more complex designs
Introduction to PCB Design Software
For engineers, independent hardware developers, and technicians, choosing the right PCB design package is crucial. It determines the types of designs you can create, the speed of completion, and your ability to define design constraints and run design rule checks (DRCs). When evaluating EDA packages, it's essential to look beyond marketing claims and pricing models, and instead, use an objective engineering framework.
The Evaluation Framework: How to Assess EDA Tools
To choose the right PCB design software, you must understand the key metrics that professional engineers consider. These include unified workflows, core schematic and layout features, library data management, operating system compatibility, manufacturing export standards, and the software's ability to support a diverse set of designs.
Unified Workflows
A unified design environment is essential to ensure that changes made to the schematic are easily synchronized across the layout and bill of materials (BOM). Beginners should prioritize software that operates from a single, centralized component database to reduce friction and eliminate synchronization errors.
Core Schematic and Layout Features
A viable EDA package must support rules-driven design, using an active electrical and design rule check engine that runs constantly in the background. The layout environment should have the following capabilities:
- Constraints definition: setting up design rules for a new PCB layout, including design for manufacturing (DFM), clearance, and routing features like traces and vias
- Native 3D rendering: real-time 3D visualization to check for mechanical interference, component height limits, and enclosure fitment
Comparison of EDA Packages
The following table compares some popular EDA packages:
| Software | Unified Workflow | Core Schematic and Layout Features | Library Data Management | Operating System Compatibility | Manufacturing Export Standards |
|---|---|---|---|---|---|
| Altium Designer | Yes | Constraints definition, native 3D rendering | Centralized component database | Windows, Mac | IPC-2581, ODB++ |
| Eagle | Yes | Constraints definition, native 3D rendering | Component library | Windows, Mac, Linux | IPC-2581, ODB++ |
| KiCad | Yes | Constraints definition, native 3D rendering | Component library | Windows, Mac, Linux | IPC-2581, ODB++ |
Bottom Line
Choosing the right PCB design software is critical for engineers, independent hardware developers, and technicians. By using an objective engineering framework to evaluate EDA packages, you can ensure that you select a tool that meets your needs and supports your design goals. With the right software, you can create complex designs, minimize errors, and optimize your workflow. By considering key factors such as unified workflows, core schematic and layout features, and library data management, you can make an informed decision and choose the best EDA package for your needs.