Manufacturing Grid, standard cell row and Unit tile

 Manufacturing Grid :

• The smallest geometry that semiconductor foundry can process or smallest resolution of your technology process (e.g. 0.005)
• All drawn geometries during Physical Design must snap to this grid
• While Masking fab. use this as reference line

Standard Cell Site/ Standard Cell Placement Tile/ Unit Tile

• The minimum Width and Height a Cell that can occupy in the design
• The Standard Cell Site will have the same height as Standard Cells, but the width will be as small as your smallest Filler Cell
• It’s one Vertical Routing Track and the Standard Cell Height
• All Standard Cells must be multiple of Unit Tile

Standard Cell Rows

• Rows are actually the Standard Cell Sites abut side by side and then Standard Cells are placed on these Rows
• Cells with the equal no. of Track definition will have same height