SUBSTRATE MATRIX TO DECOUPLE TOOL AND PROCESS EFFECTS

PROBLEM TO BE SOLVED: To determine and account for the source of an undesirable confounding caused by many different parameters specified in a given test matrix test, which confounding tends to reduce accuracy in a correlation between the parameters and properties.SOLUTION: There is provided a metho...

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Main Authors DANIEL KANDEL, PAVEL IZIKSON, MICHAEL E ADEL
Format Patent
LanguageEnglish
Japanese
Published 09.11.2017
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Abstract PROBLEM TO BE SOLVED: To determine and account for the source of an undesirable confounding caused by many different parameters specified in a given test matrix test, which confounding tends to reduce accuracy in a correlation between the parameters and properties.SOLUTION: There is provided a method of characterizing a process by selecting the process to characterize, selecting a parameter of the process to characterize, determining values of the parameter to use in a test matrix, specifying an eccentricity for the test matrix, selecting test structures to be created in cells on a substrate, processing the substrate through the process using in each cell the value of the parameter as determined by the eccentric test matrix, measuring a property of the test structures in the cells, and developing a correlation between the parameter and the property.SELECTED DRAWING: Figure 3 【課題】多くの異なるパラメータが、所定のテストマトリクステスト内に特定され不所望な交絡に悩まされることがあり、この交絡はパラメータと特性との間の相関の精度を減少させる傾向がある。交絡の原因を究明して計上することは非常に困難である。【解決手段】手段特徴付けすべきプロセスを選択し、特徴付けすべきプロセスのパラメータを選択し、テストマトリクスで使用するパラメータの値を決定し、テストマトリクスの偏心度を特定し、基板上のセル内に作成すべきテスト構造を選択し、プロセスを通じて、偏心テストマトリクスにより決定されるような、パラメータの値を、各セルに用いて基板を処理し、セル内のテスト構造の特性を計測し、パラメータと特性との間の相関を展開することにより、プロセスを特徴付ける方法。【選択図】図3
AbstractList PROBLEM TO BE SOLVED: To determine and account for the source of an undesirable confounding caused by many different parameters specified in a given test matrix test, which confounding tends to reduce accuracy in a correlation between the parameters and properties.SOLUTION: There is provided a method of characterizing a process by selecting the process to characterize, selecting a parameter of the process to characterize, determining values of the parameter to use in a test matrix, specifying an eccentricity for the test matrix, selecting test structures to be created in cells on a substrate, processing the substrate through the process using in each cell the value of the parameter as determined by the eccentric test matrix, measuring a property of the test structures in the cells, and developing a correlation between the parameter and the property.SELECTED DRAWING: Figure 3 【課題】多くの異なるパラメータが、所定のテストマトリクステスト内に特定され不所望な交絡に悩まされることがあり、この交絡はパラメータと特性との間の相関の精度を減少させる傾向がある。交絡の原因を究明して計上することは非常に困難である。【解決手段】手段特徴付けすべきプロセスを選択し、特徴付けすべきプロセスのパラメータを選択し、テストマトリクスで使用するパラメータの値を決定し、テストマトリクスの偏心度を特定し、基板上のセル内に作成すべきテスト構造を選択し、プロセスを通じて、偏心テストマトリクスにより決定されるような、パラメータの値を、各セルに用いて基板を処理し、セル内のテスト構造の特性を計測し、パラメータと特性との間の相関を展開することにより、プロセスを特徴付ける方法。【選択図】図3
Author MICHAEL E ADEL
DANIEL KANDEL
PAVEL IZIKSON
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Snippet PROBLEM TO BE SOLVED: To determine and account for the source of an undesirable confounding caused by many different parameters specified in a given test...
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BASIC ELECTRIC ELEMENTS
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Title SUBSTRATE MATRIX TO DECOUPLE TOOL AND PROCESS EFFECTS
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