System and method for temporally isolating environmentally sensitive integrated circuit faults

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6883113
APP PUB NO 20030200484A1
SERIAL NO

10125900

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A procedure for temporally isolating an environmentally dependent integrated circuit fault includes the steps of determining a marginally failing and a minimally passing environmental condition corresponding to the fault; identifying a clock cycle T.sub.max at which the fault was first detected; determining a candidate clock cycle at which the fault may have occurred; and iteratively a) applying test pattern subsets from an initial clock cycle through the candidate clock cycle under the marginally failing environmental condition; b) applying remaining test patterns under the minimally passing environmental condition; and c) adjusting the candidate clock cycle based upon whether the fault occurred during test pattern subset application up through the candidate clock cycle under the marginally failing environmental condition. Candidate clock cycle adjustment in accordance with a binary search technique enables determination of an exact clock cycle at which the fault occurred in a maximum of Log.sub.2 (T.sub.max +1) iterations.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
FRANTORF INVESTMENTS GMBH LLC160 GREENTREE DRIVE SUITE 101 DOVER DE 19904

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
McWilliam, Bruce Manassas, VA 1 0
Storey, Thomas M Manassas, VA 4 124
Todd, Ronald Amissville, VA 2 3

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation