Wafer inspection system

US8976348B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8976348-B2
Application numberUS-201414224428-A
CountryUS
Kind codeB2
Filing dateMar 25, 2014
Priority dateJun 4, 2010
Publication dateMar 10, 2015
Grant dateMar 10, 2015

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Abstract

Official abstract text for this publication.

Wafer inspection method to perform wafer inspection based on photo map information. The wafer inspection method may include: detecting a sample center location on a wafer; compensating the detected sample center location to a compensated center location based on photo map information; and detecting defective dies included in the wafer based on the compensated center location.

First claim

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What is claimed is: 1. A wafer inspection system comprising a wafer inspection device that comprises: an inspection unit that detects a sample center location on a wafer, and inspects the wafer with respect to a compensated center location according to an inspection control signal, and generates defect data based on the compensated center location; and an inspection control unit that generates the inspection control signal, wherein the inspection control signal compensates the s…

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What does patent US8976348B2 cover?
Wafer inspection method to perform wafer inspection based on photo map information. The wafer inspection method may include: detecting a sample center location on a wafer; compensating the detected sample center location to a compensated center location based on photo map information; and detecting defective dies included in the wafer based on the compensated center location.
Who is the assignee on this patent?
Samsung Electronics Co Ltd, Samsung Electronics Co Ltd
What technology area does this patent fall under?
Primary CPC classification G01N23/2251. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Mar 10 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).