# TCL Commands to build chip level padrings The following commands can be used from the command prompt to define the padring structure for the chip. - [add_pad](add_pad.md) - [define_pad_cell](define_pad_cell.md) - [set_padring_options](set_padring_options.md) - [set_bump_options](set_bump_options.md) - [set_bump](set_bump.md) Once the padcells have been added, the padring can be built using the initialize_padring command. - [initialize_padring](initialize_padring.md) Use the place_cell command to pre-place additional cells in the floorplan. - [place_cell](place_cell.md) Full examples of how to use these commands together to build a chip: - Example for chip with [wirebond padring](https://github.com/The-OpenROAD-Project/OpenROAD/blob/master/src/ICeWall/test/tcl_interface.example.tcl) - Example for chip with [flipchip bumps](https://github.com/The-OpenROAD-Project/OpenROAD/blob/master/src/ICeWall/test/tcl_interface.flipchip.example.tcl) Alternatively, the information needed to build chip-level padrings can be [bundled up into a separate file and loaded in batch fashion](README.md)