Invention Grant
- Patent Title: Determining design coordinates for wafer defects
- Patent Title (中): 确定晶圆缺陷的设计坐标
-
Application No.: US13601891Application Date: 2012-08-31
-
Publication No.: US09087367B2Publication Date: 2015-07-21
- Inventor: Ellis Chang , Michael J. Van Riet , Allen Park , Khurram Zafar , Santosh Bhattacharyya
- Applicant: Ellis Chang , Michael J. Van Riet , Allen Park , Khurram Zafar , Santosh Bhattacharyya
- Applicant Address: US CA Milpitas
- Assignee: KLA-Tencor Corp.
- Current Assignee: KLA-Tencor Corp.
- Current Assignee Address: US CA Milpitas
- Agent Ann Marie Mewherter
- Main IPC: G06K9/62
- IPC: G06K9/62 ; G06T7/00

Abstract:
Methods and systems for determining design coordinates for defects detected on a wafer are provided. One method includes aligning a design for a wafer to defect review tool images for defects detected in multiple swaths on the wafer by an inspection tool, determining a position of each of the defects in design coordinates based on results of the aligning, separately determining a defect position offset for each of the multiple swaths based on the swath in which each of the defects was detected (swath correction factor), the design coordinates for each of the defects, and a position for each of the defects determined by the inspection tool, and determining design coordinates for the other defects detected in the multiple swaths by the inspection tool by applying the appropriate swath correction factor to those defects.
Public/Granted literature
- US20130064442A1 Determining Design Coordinates for Wafer Defects Public/Granted day:2013-03-14
Information query