Schematic Driven Layout (SDL)

The SDL design flow uses two windows in ICgraph. One window displays the schematic design viewpoint (logic database) and the other displays the physical cell you are creating. You identify schematic objects to add to the new cell by selecting them. SDL then uses a database to determine what library cells or devices correspond to the selected schematic objects, and either places the devices or cells in the layout or makes them available for you to place in the new cell.

In CE (Connectivity Editing) or CBC (Correct by Construction) mode, Connectivity is automatically captured. Also, crossprobing is established between schematic instances and layout instances, and between schematic nets and layout nets in both modes. In GE ( General Editing or Polygon editing) mode, crossprobing is established between schematic and layout instances, but no connectivity is captures and thus no crossprobing is established for nets.

SDL uses an EDDM design database (schematic). When you use Design Architect to create the schematic, it is not necessary to create an EDDM netlist.

More detailed information can be read from IC Station User's Manual, Chapter 6.