Patent · US Active

Defensive routing and related techniques

US11347902B2 · kind B2 · utility

0Cited by

3References

20Claims

0Family size

Assignee

Massachusetts Institute of Technology · US

Inventors

Kevin B. Bush · Sudbury, US
Matthew Hicks · New York, US
Timothy D. Trippel · Ann Arbor, US

Key dates

Filing date	Oct 10, 2019
Grant date	May 31, 2022
Priority date	—
Expiry date	Jan 11, 2041

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S707/952
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Techniques are disclosed for defensive routing of guard wires for security-critical wires in an integrated circuit (IC). Defensive routing provides a routing-centric and preventive layout-level defense against IC fabrication time attacks against security-critical wires within an IC. An example methodology implementing the techniques includes identifying at least one security-critical wire in an IC design, identifying at least one unblocked surface of the identified at least one security-critical wire, and guarding the identified at least one surface of the identified at least one security-critical wire with a guard wire. In one example, the guard wire may be a natural guard wire. In another example, the guard wire may be a synthetic guard wire.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.