> ## Documentation Index
> Fetch the complete documentation index at: https://blog.sumathi.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Inputs

```mermaid theme={null}
graph TD
    classDef physicalDesign fill:#00b300,color:white,stroke-width:2px;
    classDef subComponent fill:#3498db,color:white,stroke-width:2px;

    PhysicalDesign(Physical Design):::physicalDesign
    PhysicalDesign --> Netlist(Netlist):::subComponent
    PhysicalDesign --> Constraints(Constraints):::subComponent
    PhysicalDesign --> LEF(LEF):::subComponent
    PhysicalDesign --> LIB(LIB):::subComponent
    PhysicalDesign --> TF(TF):::subComponent
    PhysicalDesign --> MacroLib(Macro lib):::subComponent
    PhysicalDesign --> DEF(DEF):::subComponent
```

### Netlist

* Contains ports, functionality, nets, and modules

### Constraints

* Clock-related information
* Design rule violation, transition, and capacitance specifications

### LEF (Library Exchange Format)

* Contains physical overview
* Cell names, sizes, and shapes of cells and macros

### LIB (Library)

* Timing view
* Delays at input and output pins of standard cells
* Capacitance and transition characteristics

### TF (Technology File)

* Technology file containing:
  * Resistance and capacitance of each metal layer
  * Spacing rules and colors of each metal layer
* Interconnect file:
  * Parasitic information of metal layers to generate SPEF
  * Mapping file to map with technology file

### Macro Library

* Contains macro cell definitions and specifications

### DEF (Design Exchange Format)

* Physical partition information
* Port details
* Complete design specifications