"VLSI BACKEND" what's the big deal?

    Well, we all know that chip designing to chip manufacturing includes several long processes and steps. VLSI BACKEND  i.e Physical Design is one such process.

     This involves from synthesis of logic to building GDSII(Graphic Data System) file, from logical schematic to layout of the chip. The physical design is vast field which has its own flow the inputs of the physical design are synthesis netlist, the output would be complete GDSII of that netlist.

  So what actually physical design do? The answer to this is Physical design flow helps to convert this netlist to layout file by using several different steps like,

• Static Timing Analysis(STA)
• Design Partitioning
• Floor Planning
• Placement
• Clock Tree Synthesis
• Routing
• Signoff(Physical Verification)

Sometimes we also do logic synthesis, STA is parallel process done in all steps to check timings.
We will see all this physical design steps in details.

Layout schematic

Logic Schematic

Image references


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