DRC & ERC

DRC

Perform the design rule checking (DRC) process to evaluate the design for compliance with layout fabrication rules.

• Internal layer checks
• Wide metal checks
• Layer-to-layer checks
• All design checks are performed hierarchically
• Incremental DRC by layer or cell

ERC (Electrical Rule Checking)

Check for antenna violations and to make sure devices have a path through to a specific net

• Antenna checking with back annotation into Astro
• Through device path checking

Output:
DRC results show compliance with minimum/maximum/exact widths, spacings, enclosures, and other requirements. DRC runs can verify the correctness of the design mask set.

Procedure:
The Custom Designer platform DRC process operates on OpenAccess or Stream format data. You can optionally stream the DRC information to GDSII, and then run the DRC process on the .gds file.

Calibre:
You can use the Mentor Graphics Calibre and Calibre Interactive tools for design rule checking on the Custom Designer platform.

Calibre Interactive
The invocation GUI for Calibre DRC, LVS and xRC tools for physical verification and parasitic extraction.
Easily accessed from the menu bar within popular layout design environment(ICC).
提供用户方便快捷的进入方式，可以让designers在其熟悉的IC design environment里进行physical verification 或 extraction.

Calibre RVE tool:

results viewing environment