US 10,380,286 B2Granted

Multi-sided variations for creating integrated circuits

AssigneeInternational Business Machines Corporation

InventorsRobert J. Allen, Nathan C. Buck, Eric A. Foreman, Jeffrey G. Hemmett, Kerim Kalafala, Gregory M. Schaeffer, Stephen G. Shuma, Debjit Sinha, Natesan Venkateswaran, Vladimir Zolotov

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Abstract

The computer identifies an integrated circuit design; identifies a timing model associated with the identified integrated circuit design; defines one or more static single sided variables; defines one or more regions of one or more of the defined one or more static single sided variables that are treated linearly; defines one or more multi-sided variables based on the defined one or more regions of the one or more of the defined one or more static single sided variables; identifies one or more timing paths within the identified integrated circuit design; performs a statistical static timing analysis on the identified timing model for the identified one or more timing paths within the identified integrated circuit design utilizing the defined one or more multi-sided variables; provides one or more timing quantities that project within a multi-parameter space based on the performed statistical static timing analysis.

Claims11

Dependent claims

A computer program product for creating an integrated circuit with non-linear variations, the computer program product comprising:

one or more computer readable storage media and program instructions stored on the one or more computer readable storage media, the program instructions comprising:
program instructions to identify an integrated circuit design;
program instructions to identify a timing model associated with the identified integrated circuit design;
program instructions to define one or more static single sided variables;
program instructions to define one or more regions of one or more of the defined one or more static single sided variables that are treated linearly;
program instructions to define one or more multi-sided variables based on the defined one or more regions of the one or more of the defined one or more static single sided variables;
program instructions to identify one or more timing paths within the identified integrated circuit design;
program instructions to perform a statistical static timing analysis on the identified timing model for the identified one or more timing paths within the identified integrated circuit design utilizing the defined one or more multi-sided variables;
program instructions to provide one or more timing quantities that project within a multi-parameter space based on the performed statistical static timing analysis;
and
manufacturing an integrated circuit based on program instructions, wherein the provided one or more timing quantities that are valid.

8 more elements

A computer system for creating an integrated circuit with non-linear variations, the computer system comprising:

one or more computer processors, one or more computer readable storage media, and program instructions stored on the computer readable storage media for execution by at least one of the one or more processors, the program instructions comprising:
program instructions to identify an integrated circuit design;
program instructions to identify a timing model associated with the identified integrated circuit design;
program instructions to define one or more static single sided variables;
program instructions to define one or more regions of one or more of the defined one or more static single sided variables that are treated linearly;
program instructions to define one or more multi-sided variables based on the defined one or more regions of the one or more of the defined one or more static single sided variables;
program instructions to identify one or more timing paths within the identified integrated circuit design;
program instructions to perform a statistical static timing analysis on the identified timing model for the identified one or more timing paths within the identified integrated circuit design utilizing the defined one or more multi-sided variables;
program instructions to provide one or more timing quantities that project within a multi-parameter space based on the performed statistical static timing analysis;
and
manufacturing an integrated circuit based on program instructions, wherein the provided one or more timing quantities that are valid.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/436,895Filed 20 Feb 2017
Published: US 2018/0239858 A123 Aug 2018
Granted: 13 Aug 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

G06F 30/3315
Design verification, e.g. functional simulation or model checking: using static timing analysis [STA]
G06F 30/327
Circuit design at the digital level: logic synthesis; Behaviour synthesis, e.g. mapping logic, HDL to netlist, high-level language to RTL or netlist
G06F 30/33
Circuit design at the digital level: design verification, e.g. functional simulation or model checking
G06F 30/3312
Using simulation: timing analysis