Different Cells in Digital Design

 In any digital design apart from the standard cell , we need to different Physical Cell to minimize the issues in the design. 

• Standard Cells
• Tap Cells
• End cap Cells
• ICG Cells
• DECAP Cells
• Filler Cells
• ESD Clamps
• Tie Cells
• Spare Cells
• Delay Cells
• Metrology Cells

PD MCQ

Target Libraries, Link Libraries, Physical Libraries

Traget Library:

The target libraries are the technology library needed to map to design during synthesis. we have to specify the target library with the pointer variable traget_library.

set target_library {“…………..” “…….”}

Link Library:

The link libraries are the technology library used to describe the function of mapped cells prior to opitimization and these are specified with the variable pointer link_library.

set link_library {“____.db” “___.db”

Physical Library:

The physical libraries are the technology library includes the physical design rules and physical view of the standard cells and these are specified with the pointer variable physical_library.

set physical_library {“____.pdb” “____.pdb”}