Inventor

BARNES LEVI D

US6 patents

⚠️ This page may combine multiple inventors who share the name “BARNES LEVI D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SYNOPSYS INC

5 patents

US7421678B2Sep 2, 2008

Assist feature placement using a process-sensitivity model

SYNOPSYS INC200 citations97

US7954071B2May 31, 2011

Assist feature placement based on a focus-sensitive cost-covariance field

SYNOPSYS INC12 citations81

US7721246B2May 18, 2010

Method and apparatus for quickly determining the effect of placing an assist feature at a location in a layout

SYNOPSYS INC11 citations80

US8010913B2Aug 30, 2011

Model-based assist feature placement using inverse imaging approach

SYNOPSYS INC6 citations58

US7979812B2Jul 12, 2011

Method and apparatus for correcting assist-feature-printing errors in a layout

SYNOPSYS INC5 citations56

BARNES LEVI D

1 patent

US8296688B2Oct 23, 2012

Evaluating the quality of an assist feature placement based on a focus-sensitive cost-covariance field

BARNES LEVI D2 citations54