帮我生成解说视频---**Chart Description:**
* **Type:** Flowchart.
* **Overall Structure:** The flowchart depicts a process, likely a PCB design workflow. It flows generally from top to bottom, with two main vertical columns representing different phases or tasks, and a parallel sequence of simulation/analysis steps interacting with the main flow. There are decision points and loops indicating iterations.
* **Shapes and Elements:**
* **Rounded Rectangles:** Represent the start and end points of the process.
* **Rectangles:** Represent process steps or activities. Green rectangles represent review/approval steps.
* **Diamonds:** Represent decision points.
* **Arrows:** Indicate the direction of the process flow.
* **Bidirectional Arrows:** Indicate interaction, data exchange, or close relationship between steps in the main flow and parallel steps (e.g., simulation/analysis).
* **Labels on Arrows:** "YES" and "NO" labels indicate the outcome of a decision point and the resulting path.
**Flowchart Content Extraction:**
The process steps and decisions are extracted sequentially as they appear in the flowchart.
1. Customer provided information (Start)
2. Offer and sign the contract
3. Design launch
4. New library requirements (Decision)
* YES path: Supply devices Data base building -> Connects back to Net list transfer in.
5. Net list transfer in
6. Pre simulation requirements (Decision)
* YES path leads to parallel simulation/analysis steps:
* Device data analysis Simulation model validation
* Pre simulation analysis Get the design rules
* Topological structure simulation Driving ability analysis <-> Layout of key devices
* Analysis of stacking scheme power plane simulation analysis <-> Cascade and impedance control scheme
* PI filter capacitor Optimization analysis <-> Matching resistance and filter capacitor Detailed layout of peripheral devices
* Analysis of pre simulation results <-> Layout optimization
7. PCB pre layout, design requirement analysis, design evaluation, make design plan
8. Rule input
9. Layout of key devices (Related to Topological structure simulation)
10. Cascade and impedance control scheme (Related to Analysis of stacking scheme power plane simulation analysis)
11. Matching resistance and filter capacitor Detailed layout of peripheral devices (Related to PI filter capacitor Optimization analysis)
12. Layout optimization (Related to Analysis of pre simulation results)
13. PCBasic layout review Customer layout review (Review Step)
* NO path: Returns to Layout optimization.
14. Layout confirmation
* (Arrow leads to Start PCB routing)
15. Start PCB routing
16. Post simulation requirements (Decision)
* YES path leads to parallel post-simulation/validation steps:
* Detailed post simulation analysis Verify design rules
* Post PI simulation analysis <-> Power ground plane design Power network planning
* Critical network Post simulation verification <-> Critical network cabling
* Simulation verification after timing <-> Sequence winding equal length
* Full simulation validation <-> Manually complete all wiring Routing optimization and inspection
* Post simulation report output
17. Power ground plane design Power network planning (Related to Post PI simulation analysis)
18. Critical network cabling (Related to Critical network Post simulation verification)
19. Sequence winding equal length (Related to Simulation verification after timing)
20. Manually complete all wiring Routing optimization and inspection (Related to Full simulation validation)
21. PCBasic wiring review Customer wiring review (Review Step)
* NO path: Returns to Routing optimization.
22. Routing optimization
23. PCBasic QA Board Review DFM review (Review Step)
* NO path: Returns to Customer final confirmation.
24. Design data output
25. Customer final confirmation (Review Step)
* NO path: Returns to Reply to problems in plate making engineering.
26. Reply to problems in plate making engineering
27. Design summary and design archiving
28. End of project (End)
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Hello! Today we will take you through a comprehensive PCB design workflow. From initial customer requirements to final design archiving, every step is crucial. Let's explore this complex and precise journey together. The process begins with customer-provided information, which forms the foundation of the entire project, including all design requirements and specifications.
After net list transfer, we evaluate pre-simulation requirements. If needed, we enter a critical parallel analysis phase. This includes device data analysis and simulation model validation to ensure accuracy. We perform topological structure simulation and driving ability analysis, which closely relates to key device layout. We also analyze stacking schemes and power plane simulation, guiding cascade and impedance control design. Finally, we conduct PI filter capacitor optimization analysis, affecting matching resistance and peripheral device detailed layout.
After layout optimization, we conduct both internal and customer layout reviews. If the review identifies issues, we return to layout optimization for modifications until approval is achieved. Once layout is confirmed, we can begin PCB routing. During or after routing, we evaluate post-simulation requirements to verify routing quality and ensure the design meets all specifications.
If post-simulation is required, we enter another important parallel analysis phase to validate routing quality. This includes detailed post-simulation analysis to verify design rules, post PI simulation analysis related to power ground plane design, critical network post-simulation verification for critical network cabling, and timing simulation verification for differential pair equal-length routing. Finally, full simulation validation covers manual completion of all wiring, routing optimization and inspection.
After routing review passes, we conduct internal quality assurance and design for manufacturability review to ensure the design meets production requirements. All reviews passing leads to design data output for PCB manufacturing. Customer final confirmation is required, and if issues arise during manufacturing, we address plate-making engineering problems. Finally, we perform design summary and project archiving. This completes the entire PCB design workflow, ensuring high quality and manufacturability throughout the process.