U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Defect analyzer

Patent 7103505 Issued on September 5, 2006. Estimated Expiration Date: Icon_subject November 12, 2023. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

IC tester joined with ion beam tester and the detection method of the failure part of IC
Patent #: 5592099
Issued on: 01/07/1997
Inventor: Kuribara, et al.

Method for detecting an IC defect using charged particle beam
Patent #: 5592100
Issued on: 01/07/1997
Inventor: Shida, et al.

IC analysis system having charged particle beam apparatus for improved contrast image
Patent #: 5640539
Issued on: 06/17/1997
Inventor: Goishi, et al.

Method for making specimen and apparatus thereof
Patent #: 5656811
Issued on: 08/12/1997
Inventor: Itoh, et al.

Electronic component failure indicator
Patent #: 5673028
Issued on: 09/30/1997
Inventor: Levy

Method and apparatus for detecting an IC defect using charged particle beam
Patent #: 5757198
Issued on: 05/26/1998
Inventor: Shida, et al.

Method and apparatus for predictive diagnosis of moving machine parts Patent #: 5852793
Issued on: 12/22/1998
Inventor: Board, et al.

Inventors

Assignee

Application

No. 10706304 filed on 11/12/2003

US Classes:

702/183, Diagnostic analysis700/121, Integrated circuit production or semiconductor fabrication702/117, Of circuit702/118, Testing multiple circuits702/185, Cause or fault identification714/46, Operator interface for diagnosing or testing355/53, Step and repeat324/751, Using electron beam probe382/144, Mask inspection (e.g., semiconductor photomask)250/311, Electron microscope type702/82Having judging means (e.g., accept/reject)

Examiners

Primary: Tsai, Carol S. W.

Attorney, Agent or Firm

Foreign Patent References

  • 3383574 JP 12/01/2002
  • 3677968 JP 05/01/2005
  • 3709886 JP 08/01/2005

International Class

G06F 19/00

Abstract

The present invention provides methods, devices, and systems for analyzing defects in an object such as a semiconductor wafer. In one embodiment, it provides a method of characterizing defects in semiconductor wafers during fabrication in a semiconductor fabrication facility. This method comprises the following actions. The semiconductor wafers are inspected to locate defects. Locations corresponding to the located defects are then stored in a defect file. A dual charged-particle beam system is automatically navigated to the vicinity defect location using information from the defect file. The defect is automatically identified and a charged particle beam image of the defect is then obtained. The charged particle beam image is then analyzed to characterize the defect. A recipe is then determined for further analysis of the defect. The recipe is then automatically executed to cut a portion of the defect using a charged particle beam. The position of the cut is based upon the analysis of the charged particle beam image. Ultimately, a surface exposed by the charged particle beam cut is imaged to obtain additional information about the defect.

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