Antenna protection cell
AssigneeTaiwan Semiconductor Manufacturing Company, Ltd.
InventorsKenan Yu, James Deng
Life of this patent
Estimating the term…
Abstract
A cell library stores a plurality of standard layout cells. A functional integrated circuit design is received, and a plurality of the standard layout cells are selected from the cell library based on the received functional integrated circuit design. A first standard layout cell from the cell library that is selected based on the received functional integrated circuit design includes a buffer circuit having an input terminal, an output terminal, a first voltage terminal and a second voltage terminal, and an antenna protection circuit connected between the input terminal and the second voltage terminal.
Claims20
An integrated circuit, comprising:
- a semiconductor substrate;
- a plurality of circuit elements in or on the substrate, the circuit elements being defined by standard layout cells selected from a cell library;
- the circuit elements including a first circuit element defined by a first standard layout cell from the cell library, the first standard layout cell including a first circuit having an input terminal, an output terminal, a first voltage terminal and a second voltage terminal;
- the first standard layout cell further integrating an antenna protection circuit connected between the input terminal and the second voltage terminal.
A method of designing an integrated circuit, comprising:
- providing a cell library including a plurality of standard layout cells;
- receiving a functional integrated circuit design;
- selecting a plurality of the standard layout cells from the cell library based on the received functional integrated circuit design;
- and
- selecting a first standard layout cell from the cell library based on the received functional integrated circuit design that includes a buffer circuit having an input terminal, an output terminal, a first voltage terminal and a second voltage terminal, and integrates an antenna protection circuit connected between the input terminal and the second voltage terminal.
A system, comprising:
- a cell library including a plurality of standard layout cells, the standard layout cells including a first standard layout cell having a buffer circuit with an input terminal, an output terminal, a first voltage terminal and a second voltage terminal, and integrating an antenna protection circuit connected between the input terminal and the second voltage terminal;
- a processor;
- computer readable media accessible by the processor, the computer readable media storing instructions that when executed implement a method, comprising:
- receiving a functional integrated circuit design;
- selecting a plurality of the standard layout cells from the cell library based on the received functional integrated circuit design, including the first standard layout cell;
- and
- creating a physical integrated circuit layout based on the selected plurality of the standard layout cells.
Dependencies are inferred from the claim text.