Checking surface processing of semiconductor wafer, using diffused light testing and comparing angle-dependent signals
The method involves checking the surface processing of a planar workpiece after the processing, by scattered light measurement at individual defects, at least two detection angles. The angle-dependent signals are compared with each other. The defects may be crystal originated particles (COPs). Verfa...
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Main Authors | , |
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Format | Patent |
Language | English German |
Published |
10.05.2001
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Abstract | The method involves checking the surface processing of a planar workpiece after the processing, by scattered light measurement at individual defects, at least two detection angles. The angle-dependent signals are compared with each other. The defects may be crystal originated particles (COPs).
Verfahren zur Kontrolle einer mechanischen oder chemomechanischen Oberflächenbearbeitung eines ebenen Werkstücks, insbesondere einer Halbleiterscheibe mittels einer Streulichtuntersuchung nach der Oberflächenbearbeitung, das dadurch gekennzeichnet ist, daß die Streulichtmessung unter zumindest zwei Detektionswinkeln an einzelnen Defekten erfolgt und die winkelabhängigen Signale miteinander verglichen werden. |
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AbstractList | The method involves checking the surface processing of a planar workpiece after the processing, by scattered light measurement at individual defects, at least two detection angles. The angle-dependent signals are compared with each other. The defects may be crystal originated particles (COPs).
Verfahren zur Kontrolle einer mechanischen oder chemomechanischen Oberflächenbearbeitung eines ebenen Werkstücks, insbesondere einer Halbleiterscheibe mittels einer Streulichtuntersuchung nach der Oberflächenbearbeitung, das dadurch gekennzeichnet ist, daß die Streulichtmessung unter zumindest zwei Detektionswinkeln an einzelnen Defekten erfolgt und die winkelabhängigen Signale miteinander verglichen werden. |
Author | PASSEK, FRIEDRICH WAGNER, PETER |
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RelatedCompanies | WACKER SILTRONIC GESELLSCHAFT FUER HALBLEITERMATERIALIEN AG |
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Snippet | The method involves checking the surface processing of a planar workpiece after the processing, by scattered light measurement at individual defects, at least... |
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SubjectTerms | BASIC ELECTRIC ELEMENTS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS SEMICONDUCTOR DEVICES TESTING |
Title | Checking surface processing of semiconductor wafer, using diffused light testing and comparing angle-dependent signals |
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