JP5579666B2 - イン・シトゥー・プロファイル計測のための渦電流システム - Google Patents
イン・シトゥー・プロファイル計測のための渦電流システム Download PDFInfo
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- JP5579666B2 JP5579666B2 JP2011145683A JP2011145683A JP5579666B2 JP 5579666 B2 JP5579666 B2 JP 5579666B2 JP 2011145683 A JP2011145683 A JP 2011145683A JP 2011145683 A JP2011145683 A JP 2011145683A JP 5579666 B2 JP5579666 B2 JP 5579666B2
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
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- 229910052782 aluminium Inorganic materials 0.000 description 2
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
-
- 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
- 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
- B24B49/105—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 using eddy currents
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
- G01B7/10—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance
-
- 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
-
- 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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67242—Apparatus for monitoring, sorting or marking
- H01L21/67253—Process monitoring, e.g. flow or thickness monitoring
-
- 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
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Description
nフェライト又は他のフェライト等のフェライト材を備えてもよい。該細長いコアは、パリレン等の材料で被覆してもよい。
Claims (8)
- 渦電流検出システムであって、
時間依存性の駆動電流を生成する直流(DC)結合マージナル発振器を備え、
前記マージナル発振器が、
差動増幅回路を構成する第1のトランジスタ及び第2のトランジスタと、
DC帰還をかけるため前記第1のトランジスタのベースを介して前記第1のトランジスタに結合された第3のトランジスタと、
を有し、
さらに、時間依存性の磁界を生成して、ウェハ上の導電性領域の一部に結合するコイルを備え、
前記コイルの第一端は、前記コイル、第1のトランジスタ、第2のトランジスタおよび第3のトランジスタのいずれも通らず、かつ電源線とグランドも通らない第1通電路を介して、前記第3のトランジスタのコレクタおよび前記第1のトランジスタのベースに結合し、
前記コイルの第二端および前記第2のトランジスタのベースは、前記第1通電路、コイル、第1のトランジスタ、第2のトランジスタおよび第3のトランジスタのいずれも通らず、かつ電源線も通らない第2通電路を介して、グランドに結合している、
渦電流感知システム。 - 前記マージナル発振器が、回路の共振周波数で時間依存性の駆動電流を生成するように動作可能であり、前記回路が、コア及びコンデンサに結合されたコイルを備える、請求項1に記載の渦電流検出システム。
- 前記第3のトランジスタが、前記第1のトランジスタのベースへのDC帰還を実行して、前記コイル及びコンデンサの両端の電位差が概して一定の振幅に維持されるように、前記マージナル発振器に時間依存性の駆動電流を生成させる、請求項2に記載の渦電流検出システム。
- 前記コイル及び前記コンデンサの両端の電位差の振幅を感知する帰還回路を更に含む、請求項3に記載の渦電流検出システム。
- 渦電流検出方法であって、
コア及びコンデンサに結合されたコイルを備える回路の共振周波数で時間依存性の電流を生成するステップであって、
前記時間依存性の電流が、差動増幅回路を構成する第1のトランジスタと第2のトランジスタとを有するマージナル発振器によって生成される、ステップと、
ウェハ上の導電性層の第1の領域内に渦電流を誘導するステップであって、前記渦電流が、前記コイルによって発生する時間依存性の磁界によって誘導される、ステップと、
前記コイル及び前記コンデンサの両端の電位差の振幅を決定するステップと、
前記第1のトランジスタのベースに結合された第3のトランジスタからのDC帰還に基づいて、前記時間依存性の駆動電流を調整して、前記電位差の所望の振幅を維持するステップと、
前記駆動電流に基づいて、前記第1の領域の1つ以上のパラメータを決定するステップと、
を備え、
前記コイルの第一端は、前記コイル、第1のトランジスタ、第2のトランジスタおよび第3のトランジスタのいずれも通らず、かつ電源線も通らない第1通電路を介して、前記第3のトランジスタのコレクタおよび前記第1のトランジスタのベースに結合し、
前記コイルの第二端および前記第2のトランジスタのベースは、前記第1通電路、コイル、第1のトランジスタ、第2のトランジスタおよび第3のトランジスタのいずれも通らず、かつ電源線も通らない第2通電路を介して、グランドに結合している、
渦電流検出方法。 - 前記時間依存性の磁界が、前記導電性層の第2の領域内に渦電流を誘導するように、前記コアを前記ウェハに対して移動させるステップを更に備える、請求項5に記載の渦電流検出方法。
- 前記コイル及び前記コンデンサの両端の前記電位差の、後の振幅を決定するステップと、
前記第1のトランジスタのベースに結合された第3のトランジスタからのDC帰還に基づいて、前記第1のトランジスタ及び前記第2のトランジスタの時間依存性の電流を調整して、前記電位差の所望の振幅を維持するステップと、
前記駆動電流に基づいて、前記第2の領域の1つ以上のパラメータを決定するステップと、
を更に備える、請求項6に記載の渦電流検出方法。 - 渦電流検出システムであって、
時間依存性の磁界を生成して、ウェハ上の導電性領域の一部に結合するコイルと、
コアとコンデンサに結合した前記コイルを含む回路の共振周波数において時間依存性の駆動電流を生成する直流(DC)結合マージナル発振器を備え、
前記マージナル発振器が、
差動増幅回路を構成する第1のトランジスタ及び第2のトランジスタと、
DC帰還をかけるため前記第1のトランジスタのベースを介して前記第1のトランジスタに結合された第3のトランジスタと、
を有し、
前記コイルの第一端は、前記コイル、第1のトランジスタ、第2のトランジスタおよび第3のトランジスタのいずれも通らず、かつ電源線とグランドも通らない第1通電路を介して、前記第3のトランジスタのコレクタおよび前記第1のトランジスタのベースに結合し、
前記コイルの第二端および前記第2のトランジスタのベースは、前記第1通電路、コイル、第1のトランジスタ、第2のトランジスタおよび第3のトランジスタのいずれも通らず、かつ電源線も通らない第2通電路を介して、グランドに結合している、
渦電流感知システム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/633,276 | 2003-07-31 | ||
US10/633,276 US7112960B2 (en) | 2003-07-31 | 2003-07-31 | Eddy current system for in-situ profile measurement |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006522039A Division JP4832297B2 (ja) | 2003-07-31 | 2004-07-27 | イン・シトゥー・プロファイル計測のための渦電流システム |
Publications (2)
Publication Number | Publication Date |
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JP2011252910A JP2011252910A (ja) | 2011-12-15 |
JP5579666B2 true JP5579666B2 (ja) | 2014-08-27 |
Family
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Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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JP2006522039A Expired - Lifetime JP4832297B2 (ja) | 2003-07-31 | 2004-07-27 | イン・シトゥー・プロファイル計測のための渦電流システム |
JP2011145683A Expired - Lifetime JP5579666B2 (ja) | 2003-07-31 | 2011-06-30 | イン・シトゥー・プロファイル計測のための渦電流システム |
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JP2006522039A Expired - Lifetime JP4832297B2 (ja) | 2003-07-31 | 2004-07-27 | イン・シトゥー・プロファイル計測のための渦電流システム |
Country Status (7)
Country | Link |
---|---|
US (3) | US7112960B2 (ja) |
EP (1) | EP1665335A1 (ja) |
JP (2) | JP4832297B2 (ja) |
KR (2) | KR101207777B1 (ja) |
CN (1) | CN100399500C (ja) |
TW (1) | TWI313488B (ja) |
WO (1) | WO2005013340A1 (ja) |
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TW200511419A (en) | 2005-03-16 |
KR20110104107A (ko) | 2011-09-21 |
TWI313488B (en) | 2009-08-11 |
KR20060061808A (ko) | 2006-06-08 |
JP2011252910A (ja) | 2011-12-15 |
US10105811B2 (en) | 2018-10-23 |
KR101207777B1 (ko) | 2012-12-04 |
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