Invention Grant
- Patent Title: Defect analyzer
- Patent Title (中): 缺陷分析仪
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Application No.: US12348771Application Date: 2009-01-05
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Publication No.: US07987072B2Publication Date: 2011-07-26
- Inventor: Janet Teshima , Daniel E. Partin , James E. Hudson
- Applicant: Janet Teshima , Daniel E. Partin , James E. Hudson
- Applicant Address: US OR Hillsboro
- Assignee: FEI Company
- Current Assignee: FEI Company
- Current Assignee Address: US OR Hillsboro
- Agency: Scheinberg & Griner, LLP
- Agent David Griner; Michael O. Scheinberg
- Main IPC: G01R27/28
- IPC: G01R27/28

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.
Public/Granted literature
- US20090230303A1 DEFECT ANALYZER Public/Granted day:2009-09-17
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