JP6458874B2 - p型シリコンウェーハ中のFe濃度測定方法 - Google Patents
p型シリコンウェーハ中のFe濃度測定方法 Download PDFInfo
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- JP6458874B2 JP6458874B2 JP2017544172A JP2017544172A JP6458874B2 JP 6458874 B2 JP6458874 B2 JP 6458874B2 JP 2017544172 A JP2017544172 A JP 2017544172A JP 2017544172 A JP2017544172 A JP 2017544172A JP 6458874 B2 JP6458874 B2 JP 6458874B2
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- 238000000034 method Methods 0.000 title claims description 30
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims description 27
- 229910052710 silicon Inorganic materials 0.000 title claims description 27
- 239000010703 silicon Substances 0.000 title claims description 27
- 238000005259 measurement Methods 0.000 claims description 91
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 73
- 238000001514 detection method Methods 0.000 description 44
- 238000009792 diffusion process Methods 0.000 description 16
- 239000000969 carrier Substances 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 5
- 239000000523 sample Substances 0.000 description 5
- 238000000691 measurement method Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- ZDVYABSQRRRIOJ-UHFFFAOYSA-N boron;iron Chemical compound [Fe]#B ZDVYABSQRRRIOJ-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/10—Measuring as part of the manufacturing process
- H01L22/14—Measuring as part of the manufacturing process for electrical parameters, e.g. resistance, deep-levels, CV, diffusions by electrical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/26—Testing of individual semiconductor devices
- G01R31/2648—Characterising semiconductor materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/26—Testing of individual semiconductor devices
- G01R31/265—Contactless testing
- G01R31/2656—Contactless testing using non-ionising electromagnetic radiation, e.g. optical radiation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/20—Sequence of activities consisting of a plurality of measurements, corrections, marking or sorting steps
- H01L22/24—Optical enhancement of defects or not directly visible states, e.g. selective electrolytic deposition, bubbles in liquids, light emission, colour change
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/10—Measuring as part of the manufacturing process
- H01L22/12—Measuring as part of the manufacturing process for structural parameters, e.g. thickness, line width, refractive index, temperature, warp, bond strength, defects, optical inspection, electrical measurement of structural dimensions, metallurgic measurement of diffusions
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- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- Toxicology (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
(1)p型シリコンウェーハに対して行うSPV法による測定に基づいて、該シリコンウェーハ中のFe濃度を求めるにあたり、
前記測定は、互いに異なる複数種類の波長の光を同期間に照射する測定モードにより、Time Between Readingsを35m秒以上120m秒以下かつTime Constantを20m秒以上、または、Time Between Readingsを10m秒以上35m秒未満かつTime Constantを100m秒以上とし、Number of Readingsを12回以下とする条件下にて行うことを特徴とする、p型シリコンウェーハ中のFe濃度測定方法。
[Fe]=C×(1/LFei − 1/LFeB)
ただし、Cは定数である。
Semilab-SDi LLC製のFAaST330をSPV装置として用い、CFは1584Hz、光量はLevel 3で固定し、NR,TC,TBを表1に示す種々の値として、Standard modeでSPV測定を行った。照射波長は、780nmと1004nmとした。
◎:従来例よりも15%以上の低下
○:従来例よりも15%未満の低下
△:従来例よりも15%未満の増加
×:従来例よりも15%以上の増加
◎:従来例よりも15%以上の短縮
○:従来例よりも15%未満の短縮
△:従来例よりも15%未満の延長
×:従来例よりも15%以上の延長
Semilab-SDi LLC製のFAaST330をSPV装置として用い、CF1は1584Hz、CF2は1634Hzとし、光量はLevel 3で固定し、NR,TC,TBを表2に示す種々の値として、Ultimate modeでSPV測定を行った。照射波長は、780nmと1004nmとした。実験例1と同様の手法で、Fe濃度の検出下限とスループットを求め、結果を表2に示した。判定結果も同様の基準で表2に示した。また、表2の測定結果から、Fe濃度の検出下限とスループットとの関係も図2に合わせて示した。
10 光モジュール
12 光源
14 チョッパー
16 フィルターホイール
18 プローブ
20 ロックインアンプ
22 ステージ
W シリコンウェーハ
Claims (1)
- p型シリコンウェーハに対して行うSPV法による測定に基づいて、該シリコンウェーハ中のFe濃度を求めるにあたり、
前記測定は、互いに異なる複数種類の波長の光を同期間に照射する測定モードにより、Time Between Readingsを35m秒以上120m秒以下かつTime Constantを20m秒以上、または、Time Between Readingsを10m秒以上35m秒未満かつTime Constantを100m秒以上とし、Number of Readingsを12回以下とする条件下にて行うことを特徴とする、p型シリコンウェーハ中のFe濃度測定方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015199589 | 2015-10-07 | ||
JP2015199589 | 2015-10-07 | ||
PCT/JP2016/004049 WO2017061072A1 (ja) | 2015-10-07 | 2016-09-05 | p型シリコンウェーハ中のFe濃度測定方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2017061072A1 JPWO2017061072A1 (ja) | 2018-02-22 |
JP6458874B2 true JP6458874B2 (ja) | 2019-01-30 |
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JP2017544172A Active JP6458874B2 (ja) | 2015-10-07 | 2016-09-05 | p型シリコンウェーハ中のFe濃度測定方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US10871515B2 (ja) |
JP (1) | JP6458874B2 (ja) |
KR (1) | KR102007191B1 (ja) |
CN (1) | CN108140592B (ja) |
DE (1) | DE112016004633T5 (ja) |
TW (1) | TWI616965B (ja) |
WO (1) | WO2017061072A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11387151B2 (en) * | 2017-12-22 | 2022-07-12 | Sumco Corporation | Method of measuring concentration of Fe in p-type silicon wafer and SPV measurement apparatus |
JP6848849B2 (ja) * | 2017-12-22 | 2021-03-24 | 株式会社Sumco | p型シリコンウェーハ中のFe濃度測定方法及びSPV測定装置 |
JP6848850B2 (ja) * | 2017-12-22 | 2021-03-24 | 株式会社Sumco | p型シリコンウェーハ中のFe濃度測定方法及びSPV測定装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2815251B2 (ja) | 1991-06-26 | 1998-10-27 | 株式会社日立ビルシステム | エレベータの主索交換方法 |
JP2843815B2 (ja) * | 1992-08-12 | 1999-01-06 | 住友シチックス株式会社 | BドープP型Si中のFe濃度測定方法 |
JPH0864650A (ja) * | 1994-08-24 | 1996-03-08 | Komatsu Electron Metals Co Ltd | Fe−B濃度測定によるシリコンウェーハの評価方法 |
DE60123971T2 (de) | 2000-06-29 | 2007-03-08 | Semiconductor Diagnostics, Inc., Tampa | Verfahren zur schnellen und genauen bestimmung der minoritätsträgerdiffusionslänge aus gleichzeitig gemessenen oberflächenfotospannungen |
US20040010394A1 (en) * | 2002-07-15 | 2004-01-15 | Seh America, Inc. | Systems, methods and computer program products for determining contaminant concentrations in semiconductor materials |
US7187186B2 (en) * | 2004-03-22 | 2007-03-06 | Kla-Tencor Technologies Corp. | Methods and systems for determining one or more properties of a specimen |
JP2007053123A (ja) * | 2005-08-15 | 2007-03-01 | Sumco Corp | シリコンウェーハ表面の安定化判定方法およびシリコンウェーハの製造方法 |
US8093920B2 (en) * | 2008-10-06 | 2012-01-10 | Semiconductor Diagnostics, Inc. | Accurate measuring of long steady state minority carrier diffusion lengths |
JP5556090B2 (ja) | 2009-09-02 | 2014-07-23 | 株式会社Sumco | ボロンドープp型シリコン中の鉄濃度分析における定量分析限界決定方法 |
JP5659632B2 (ja) | 2010-08-27 | 2015-01-28 | 株式会社Sumco | ボロンドープp型シリコンウェーハの鉄濃度分析方法および分析装置、シリコンウェーハ、ならびにシリコンウェーハの製造方法 |
JP5545131B2 (ja) * | 2010-08-27 | 2014-07-09 | 株式会社Sumco | ボロンドープp型シリコン中の鉄濃度分析における定量分析限界決定方法 |
CN106505004B (zh) * | 2015-09-07 | 2019-05-03 | 中芯国际集成电路制造(上海)有限公司 | 检测晶圆中铁含量异常的装置及其方法 |
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- 2016-09-05 US US15/765,792 patent/US10871515B2/en active Active
- 2016-09-05 JP JP2017544172A patent/JP6458874B2/ja active Active
- 2016-09-05 DE DE112016004633.2T patent/DE112016004633T5/de active Pending
- 2016-09-05 WO PCT/JP2016/004049 patent/WO2017061072A1/ja active Application Filing
- 2016-09-05 KR KR1020187009570A patent/KR102007191B1/ko active IP Right Grant
- 2016-09-05 CN CN201680058320.XA patent/CN108140592B/zh active Active
- 2016-09-30 TW TW105131554A patent/TWI616965B/zh active
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Publication number | Publication date |
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TW201727790A (zh) | 2017-08-01 |
TWI616965B (zh) | 2018-03-01 |
WO2017061072A1 (ja) | 2017-04-13 |
DE112016004633T5 (de) | 2018-06-21 |
KR20180050374A (ko) | 2018-05-14 |
CN108140592B (zh) | 2022-08-02 |
JPWO2017061072A1 (ja) | 2018-02-22 |
KR102007191B1 (ko) | 2019-08-05 |
US10871515B2 (en) | 2020-12-22 |
CN108140592A (zh) | 2018-06-08 |
US20180284182A1 (en) | 2018-10-04 |
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