Mentor Graphics PADs design work flow

Creating a new design project requires an engineer to pay attention to many details. Designing a PCB is a process of making design decisions and tradeoffs, based on engineering changes throughout the design. In order to obtain the best possible design, the engineer must weigh a number of conflicting factors and make calculated design choices to obtain the best possible design outputs. Knowing that your design tools have the ability to provide and manage the required content gives you a strong foundation on which to build your design. PADS Professional offers a fully featured front-to-back design flow that allows the engineer to balance rules and constraints in an intelligent and predictable manner to produce quality designs that can be easily manufactured.
There are many operations that a designer must perform to complete a design, but the process flow can be simplified to a few basic steps shown below:

Creating a Design Project

Performing Design Capture

1. „ Creating the top-level schematic
2. „ Adding components to the schematic
3. „ Connecting the components
4. „ Synthesis and FPGA I/O optimization
5. „ Defining constraints
6. „ Performing design simulation (pre-layout)
7. „ Packaging and Forward Annotating the logical design for physical design

PCB Layout Design

1. „ Importing schematic design data to layout
2. „ Configuring for physical design
3. „ Generating plane structures
4. „ Adding physical constraints
5. „ Place parts and verify mechanical requirements
6. „ FPGA layout optimization
7. „ Routing critical nets
8. „ Complete nets routing
9. „ Checking design rules (DRC) and manufacturing rules (DFF)
10. „ Post layout analysis

Creating Documentation and Manufacturing Outputs

1. „ Creating schematic release documentation
2. „ Creating manufacturing outputs
3. „ Performing engineering change orders (ECO)

Partitioning your workflow to align with these steps will help you establish a structured approach to organizing your design tasks. It will also provide you with a number of checkpoints for reviewing your design data.
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