ASIC Design Flow - Floorplanning, Placement, and Routing (Conceptual/Tool Demonstration)
The chapter outlines the physical implementation flow of ASIC design, focusing on key stages such as floorplanning, placement, and routing, which translate logical designs into manufacturable layouts. It emphasizes the importance of these stages in managing chip dimensions, optimizing cell locations, and creating connections while addressing challenges associated with power distribution and signal integrity. Additionally, the role of post-layout analysis and extraction for ensuring accurate timing is highlighted as critical before fabrication.
Sections
Navigate through the learning materials and practice exercises.
What we have learnt
- The ASIC physical implementation flow consists of several critical stages transitioning from a logical design to a physical layout.
- Floorplanning is essential for defining chip boundaries and managing power distribution effectively.
- Post-layout extraction and timing analysis are crucial to assess circuit performance accurately, addressing real-world effects.
Key Concepts
- -- ASIC Design Flow
- The sequence of design and implementation steps leading to the creation of an Application-Specific Integrated Circuit.
- -- Floorplanning
- The process of defining a chip's physical layout, including dimensions, I/O pin placement, and power distribution strategy.
- -- Placement
- The step of positioning standard cells within the defined floorplan to optimize wire lengths and meet timing constraints.
- -- Routing
- The final step in ASIC physical design that connects placed cells with metal layers according to the design’s netlist.
- -- PostLayout Extraction
- The analysis performed after routing to identify parasitic capacitances and resistances in the layout, influencing circuit performance.
Additional Learning Materials
Supplementary resources to enhance your learning experience.