JP2019024034A - 基板研磨装置及び方法 - Google Patents
基板研磨装置及び方法 Download PDFInfo
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- 239000000758 substrate Substances 0.000 title claims abstract description 70
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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
- B24B37/013—Devices or means for detecting lapping completion
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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
- H01L21/67—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
-
- 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
- B24B37/07—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool
- B24B37/10—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool for single side lapping
- B24B37/105—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool for single side lapping the workpieces or work carriers being actively moved by a drive, e.g. in a combined rotary and translatory movement
- B24B37/107—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool for single side lapping the workpieces or work carriers being actively moved by a drive, e.g. in a combined rotary and translatory movement in a rotary movement only, about an axis being stationary during lapping
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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
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/07—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool
- B24B37/10—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool for single side lapping
- B24B37/105—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool for single side lapping the workpieces or work carriers being actively moved by a drive, e.g. in a combined rotary and translatory movement
-
- 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
- B24B37/27—Work carriers
- B24B37/30—Work carriers for single side lapping of 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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/27—Work carriers
- B24B37/30—Work carriers for single side lapping of plane surfaces
- B24B37/32—Retaining rings
-
- 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
- B24B37/34—Accessories
-
- 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
- B24B49/02—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 according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
- B24B49/04—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 according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation
- B24B49/05—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 according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation including the measurement of a first workpiece already machined and of another workpiece being machined and to be matched with the first one
-
- 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
- B24B49/12—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 optical means
-
- 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
- B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
- B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
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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
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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
- H01L21/67—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
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67092—Apparatus for mechanical treatment
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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
- H01L21/67—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
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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
- H01L22/12—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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
Description
R(λ)=(E(λ)−D(λ))/(B(λ)−D(λ))
ここで、λは波長であり、E(λ)はウェハから反射した波長λでの光の強度であり、B(λ)は波長λでの基準強度であり、D(λ)は光を遮断した状態で取得された波長λでの背景強度(ダークレベル)である。
F(w)=(1−w)×x1+w×x2
ここで、x1はアルゴリズム1による膜厚推定値、x2はアルゴリズム2による膜厚推定値、wは、時間Tを入力値として例えば次式で表される重み係数である。
w(T)=(T−T6)/(T7−T6)
11 研磨パッド
12 研磨制御部
15 研磨ヘッド
30 光学測定器
32 処理部
43 分光器
61 メモリ
62 アルゴリズム設定部
63 膜厚推定部
64 終点検知部
W ウェハ
Claims (7)
- 基板を研磨パッドに押し付けることで基板研磨を行うためのトップリングと、
前記基板の被研磨面に光照射してその反射光を受光するとともに、当該反射光の波長に対する反射率スペクトルを算出するスペクトル生成部と、
前記反射率スペクトルに基づき前記被研磨面の膜厚を推定するための複数の膜厚推定アルゴリズムを記憶する記憶部と、
前記記憶部に記憶された膜厚推定アルゴリズムの中から、複数の膜厚推定アルゴリズムとその切替条件を設定するアルゴリズム設定部と、
前記アルゴリズム設定部により設定された前記膜厚推定アルゴリズムにて前記被研磨面の膜厚を推定するとともに、前記切替条件を満たした場合に適用すべき前記膜厚推定アルゴリズムを切り替える膜厚推定部とを備えたことを特徴とする基板研磨装置。 - 前記被研磨面の膜厚が所定の目標値に達したときに、基板研磨の終点を指示する制御信号を出力する終点検知部を備えたことを特徴とする、請求項1記載の基板研磨装置。
- 前記切替条件は、前記被研磨面の膜厚の推定値が設定値に達したことであることを特徴とする、請求項1または2記載の基板研磨装置。
- 前記切替条件は、2つの膜厚推定アルゴリズムにて推定された膜厚の推定値の差が所定値未満となったことであることを特徴とする、請求項1または2記載の基板研磨装置。
- 前記膜厚推定アルゴリズムを切り替える前に、切替前後の2つの膜厚推定アルゴリズムを用いた重み関数により被研磨面の膜厚を推定することを特徴とする、請求項1または2記載の基板研磨装置。
- 前記膜厚推定アルゴリズムはFFTを用いて膜厚を推定する第1の方法とFittingを用いて膜厚を推定する第2の方法を含み、前記第1の方法の後に前記第2の方法に切り替えられることを特徴とする、請求項1から4のいずれか1項に記載の基板研磨装置。
- 基板を研磨パッドに押し付けることで基板研磨を行う基板研磨方法であって、
前記基板の被研磨面に光照射してその反射光を受光するとともに、当該反射光の波長に対する反射率スペクトルを算出するステップと、
前記反射率スペクトルに基づき前記被研磨面の膜厚を推定するための複数の膜厚推定アルゴリズムを記憶する記憶部より、複数の膜厚推定アルゴリズムとその切替条件を設定するステップと、
設定された前記膜厚推定アルゴリズムにて前記被研磨面の膜厚を推定するとともに、前記切替条件を満たした場合に適用すべき前記膜厚推定アルゴリズムを切り替えるステップとを備えたことを特徴とする基板研磨方法。
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JP2017142545A JP7023062B2 (ja) | 2017-07-24 | 2017-07-24 | 基板研磨装置及び方法 |
TW107122196A TWI793138B (zh) | 2017-07-24 | 2018-06-28 | 基板研磨裝置及方法 |
KR1020180083508A KR102556648B1 (ko) | 2017-07-24 | 2018-07-18 | 기판 연마 장치 및 방법 |
SG10201806221TA SG10201806221TA (en) | 2017-07-24 | 2018-07-20 | Substrate polishing apparatus and method |
CN201810814032.3A CN109290942B (zh) | 2017-07-24 | 2018-07-23 | 基板研磨装置及基板研磨方法 |
US16/044,137 US11195729B2 (en) | 2017-07-24 | 2018-07-24 | Substrate polishing apparatus and method |
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JP2021030408A (ja) * | 2019-08-29 | 2021-03-01 | 株式会社荏原製作所 | 研磨装置および研磨方法 |
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JP7560320B2 (ja) * | 2020-10-29 | 2024-10-02 | 株式会社ディスコ | ウェーハの研削方法 |
CN116852252A (zh) * | 2023-07-06 | 2023-10-10 | 华海清科股份有限公司 | 一种晶圆膜厚测量方法和化学机械抛光设备 |
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TW201908057A (zh) | 2019-03-01 |
US11195729B2 (en) | 2021-12-07 |
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