JP4750022B2 - 化学的機械的研磨を監視するためのデータ処理 - Google Patents
化学的機械的研磨を監視するためのデータ処理 Download PDFInfo
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- JP4750022B2 JP4750022B2 JP2006517311A JP2006517311A JP4750022B2 JP 4750022 B2 JP4750022 B2 JP 4750022B2 JP 2006517311 A JP2006517311 A JP 2006517311A JP 2006517311 A JP2006517311 A JP 2006517311A JP 4750022 B2 JP4750022 B2 JP 4750022B2
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- 238000005498 polishing Methods 0.000 title claims description 100
- 238000012545 processing Methods 0.000 title claims description 7
- 239000000126 substance Substances 0.000 title description 5
- 239000000758 substrate Substances 0.000 claims description 158
- 230000035945 sensitivity Effects 0.000 claims description 43
- 239000002184 metal Substances 0.000 claims description 38
- 229910052751 metal Inorganic materials 0.000 claims description 38
- 238000005259 measurement Methods 0.000 claims description 37
- 238000000034 method Methods 0.000 claims description 29
- 238000012544 monitoring process Methods 0.000 claims description 20
- 230000008859 change Effects 0.000 claims description 19
- 230000000694 effects Effects 0.000 claims description 6
- 238000007517 polishing process Methods 0.000 claims description 5
- 238000011156 evaluation Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 description 17
- 238000011065 in-situ storage Methods 0.000 description 12
- 239000002002 slurry Substances 0.000 description 8
- 230000001965 increasing effect Effects 0.000 description 6
- 238000010606 normalization Methods 0.000 description 6
- 230000010363 phase shift Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013213 extrapolation Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/005—Control means for lapping machines or devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/005—Control means for lapping machines or devices
- B24B37/013—Devices or means for detecting lapping completion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/10—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving electrical means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/304—Mechanical treatment, e.g. grinding, polishing, cutting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
Claims (13)
- 基板の処理を監視する方法において、
基板の処理中に、上記基板の面を横切って現場の監視システムのセンサを走査させることにより測定トレースを発生するステップであって、上記測定トレースは、上記基板の面を横切って上記センサがスイープするときに取得される、上記基板上の異なる半径方向位置からのデータ点で形成され、上記データ点は、上記センサの感知領域が上記基板を横切って進むときに上記感知領域内にある上記基板の特徴部により影響を受ける値を有するステップと、
上記基板を横切って進む上記感知領域により生じる上記センサの感度変化を補償するように上記測定トレースを変更するステップであって、処理前に上記基板の面を横切って上記現場の監視システムの上記センサがスイープするときに取得される、上記基板上の異なる半径方向位置からのデータ点を表す基準トレースを使用する段階を含むステップと、
上記変更された測定トレースから、上記基板の金属層の厚みを評価するステップと、
を備えた方法。 - 上記測定トレースを発生する上記ステップは、上記基板内の渦電流により値が影響を受けるデータ点を取得する段階を含む、請求項1に記載の方法。
- 上記測定トレースを変更する上記ステップは、上記基準トレースを使用して、上記感知領域が上記基板を横切って進むときに上記基板の縁により上記測定トレースに生じる縁作用を補償する段階を含む、請求項1に記載の方法。
- 縁作用を補償する上記段階は、上記感知領域と上記基板との間の部分的重畳による信号ロスを補償することを含む、請求項3に記載の方法。
- 上記測定トレースを変更する上記ステップは、上記基準トレースを使用して、上記感知領域が上記基板を横切って進むときに上記センサの局部的感度変化を補償する段階を含む、請求項1に記載の方法。
- 上記測定トレースを変更する上記ステップは、上記基準トレースを使用して、上記感知領域が上記基板を横切って進むときに上記測定トレースにおける局部的バイアス変化を補償する段階を含む、請求項1に記載の方法。
- 上記測定トレースを変更する上記ステップは、上記測定トレースを上記基準トレースで除算する段階を含む、請求項1に記載の方法。
- 上記測定トレースを変更する上記ステップは、上記測定トレースから上記基準トレースを減算する段階を含む、請求項1に記載の方法。
- 上記基準トレースを発生するステップを更に備えた、請求項1に記載の方法。
- 上記基準トレースを発生する上記ステップは、
上記センサの感知領域と上記基板との間の重畳を計算する段階と、
上記計算された重畳に基づき上記基準トレースに1つ以上の基準点を発生する段階と、
を含む請求項9に記載の方法。 - 上記厚みの評価に基づいて、研磨プロセスの1つ以上のパラメータを変更することを更に含む、請求項1に記載の方法。
- 上記厚みの評価に基づいて、研磨終了点を検出することを更に含む、請求項1に記載の方法。
- 基板を保持するためのキャリアと、
研磨表面と、
上記キャリア及び上記研磨表面の少なくとも一方に接続され、上記基板と上記研磨表面との間に相対的運動を発生させるモーターと、
上記基板が上記研磨表面に接触している間に上記基板の面を横切って走査して測定トレースを発生するセンサを含む監視システムであって、上記測定トレースが、上記基板の面を横切って上記センサがスイープするときに取得される、上記基板上の異なる半径方向位置からのデータ点で形成される監視システムと、
コントローラであって、
上記基板を横切って進む上記感知領域により生じる上記センサの感度変化を補償するように上記測定トレースを変更し、上記測定トレースを変更することが、上記基板の処理前に上記基板の面を横切って上記現場の監視システムの上記センサがスイープするときに取得される、上記基板上の異なる半径方向位置からのデータ点を表す基準トレースを使用する段階を含み、更に、
上記変更された測定トレースから研磨終了点を検出する、
というように構成されたコントローラと、
を備えた研磨装置。
Applications Claiming Priority (3)
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US10/464,673 | 2003-06-18 | ||
US10/464,673 US7008296B2 (en) | 2003-06-18 | 2003-06-18 | Data processing for monitoring chemical mechanical polishing |
PCT/US2004/019171 WO2004113021A1 (en) | 2003-06-18 | 2004-06-16 | Data processing for monitoring chemical mechanical polishing |
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JP2010243759A Division JP5419846B2 (ja) | 2003-06-18 | 2010-10-29 | 化学的機械的研磨を監視するためのデータ処理 |
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JP2007523756A JP2007523756A (ja) | 2007-08-23 |
JP2007523756A5 JP2007523756A5 (ja) | 2009-10-08 |
JP4750022B2 true JP4750022B2 (ja) | 2011-08-17 |
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JP2010243759A Expired - Lifetime JP5419846B2 (ja) | 2003-06-18 | 2010-10-29 | 化学的機械的研磨を監視するためのデータ処理 |
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Country Status (6)
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US (2) | US7008296B2 (ja) |
JP (2) | JP4750022B2 (ja) |
KR (1) | KR101097873B1 (ja) |
CN (1) | CN1805825B (ja) |
TW (1) | TWI283618B (ja) |
WO (1) | WO2004113021A1 (ja) |
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WO2004113021A1 (en) | 2004-12-29 |
KR101097873B1 (ko) | 2011-12-23 |
US20060009131A1 (en) | 2006-01-12 |
US7500901B2 (en) | 2009-03-10 |
CN1805825A (zh) | 2006-07-19 |
KR20060055469A (ko) | 2006-05-23 |
JP2011023752A (ja) | 2011-02-03 |
JP5419846B2 (ja) | 2014-02-19 |
TWI283618B (en) | 2007-07-11 |
US7008296B2 (en) | 2006-03-07 |
CN1805825B (zh) | 2011-08-17 |
TW200513349A (en) | 2005-04-16 |
JP2007523756A (ja) | 2007-08-23 |
US20040259470A1 (en) | 2004-12-23 |
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