Generation of layout including power delivery network

A method, comprising:

• performing at least one of a voltage drop pre-check process or an electromigration pre-check process to a circuit design that includes a power delivery network (PDN);
• generating, when the circuit design meets a predetermined specification, a power delivery network layout of a design layout for an integrated circuit;
• generating, after the power delivery network layout is generated, a circuit layout of the design layout for the integrated circuit;
• performing a voltage drop and electromigration verification process to the design layout;
• generating, when voltage drop and electromigration requirements are met during the voltage drop and electromigration verification process, a final design layout for the integrated circuit;
• and
• modifying, when the circuit design does not meet the predetermined specification, the power delivery network according to a relationship of a pillar density of the power delivery network and a maximum pillar density to be a modified power delivery network.

A system, comprising:

• a memory configured to store design information, for an integrated circuit, that includes parameters associated with power rails and conductive pillars that are coupled to the power rails;
• and
• at least one processor in communication with the memory and configured to perform operations comprising:
• generating, based on the design information, a circuit design that includes a power delivery network (PDN) for the integrated circuit;
• performing at least one of a voltage drop pre-check process or an electromigration pre-check process to the circuit design that includes the power delivery network, to determine whether the circuit design meets a predetermined specification;
• generating, when the circuit design meets the predetermined specification, a power delivery network layout and then a circuit layout of a design layout for the integrated circuit;
• performing a voltage drop and electromigration verification process to the design layout;
• generating, when voltage drop and electromigration requirements are met during the voltage drop and electromigration verification process, a final design layout for the integrated circuit;
• and
• modifying, when the circuit design does not meet the predetermined specification, the power delivery network according to a relationship of a pillar density of the power delivery network and a maximum pillar density to be a modified power delivery network.