JP2021063716A - 厚み計測装置、及び厚み計測装置を備えた加工装置 - Google Patents
厚み計測装置、及び厚み計測装置を備えた加工装置 Download PDFInfo
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- 230000003287 optical effect Effects 0.000 claims abstract description 76
- 230000003595 spectral effect Effects 0.000 claims abstract description 57
- 238000005259 measurement Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 57
- 239000002131 composite material Substances 0.000 claims description 15
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 150000002367 halogens Chemical class 0.000 claims description 4
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052753 mercury Inorganic materials 0.000 claims description 3
- 229910001507 metal halide Inorganic materials 0.000 claims description 3
- 150000005309 metal halides Chemical class 0.000 claims description 3
- 229910052724 xenon Inorganic materials 0.000 claims description 3
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 3
- 235000012431 wafers Nutrition 0.000 description 100
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 description 19
- 239000000758 substrate Substances 0.000 description 8
- 229910004298 SiO 2 Inorganic materials 0.000 description 7
- 229910002601 GaN Inorganic materials 0.000 description 5
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
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- IDBFBDSKYCUNPW-UHFFFAOYSA-N lithium nitride Chemical compound [Li]N([Li])[Li] IDBFBDSKYCUNPW-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000013307 optical fiber Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
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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
- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
- G01B11/0616—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material of coating
- G01B11/0675—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material of coating using interferometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
- G01B11/0616—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material of coating
- G01B11/0625—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material of coating with measurement of absorption or reflection
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
- G01B11/0616—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material of coating
- G01B11/0683—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material of coating measurement during deposition or removal of the layer
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/9501—Semiconductor wafers
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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
- H01L21/67253—Process monitoring, e.g. flow or thickness monitoring
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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
- H01L21/683—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 for supporting or gripping
- H01L21/687—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 for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B2210/00—Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors
- G01B2210/40—Caliper-like sensors
- G01B2210/48—Caliper-like sensors for measurement of a wafer
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B2290/00—Aspects of interferometers not specifically covered by any group under G01B9/02
- G01B2290/65—Spatial scanning object beam
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8887—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Pathology (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Signal Processing (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
Abstract
Description
2:装置ハウジング
21:主部
22:直立壁
3:研削ユニット
31:移動基台
4:スピンドルユニット
41:スピンドルハウジング
42:回転スピンドル
5:研削ホイール
51:研削砥石
6:研削ユニット送り機構
7:チャックテーブル機構
71:チャックテーブル
8:厚み計測装置
8A:計測ハウジング
8B:光源
80:第一の光学系
80a:第一の光路
81:集光手段
81A:fθレンズ
82:光分岐部
83:コリメーションレンズ
84:反射ミラー
85:スキャナー
86:コリメーションレンズ
87:回折格子
88:集光レンズ
89:イメージセンサー
90:第二の光学系
90a:第一の光路
91:集光手段
91A:fθレンズ
92:光分岐部
93:コリメーションレンズ
94:反射ミラー
95:スキャナー
96:コリメーションレンズ
97:回折格子
98:集光レンズ
99:イメージセンサー
10:ウエーハ
14:保護テープ
100:厚み出力手段
110:厚み決定部
112:照合部
120:基準波形記録部
130:厚み記録部
140:表示手段
Claims (6)
- 被測定物を保持する保持手段を備え、該保持手段に保持された被測定物の厚みを計測する厚み計測装置であって、
白色光を発する光源と、該保持手段に保持された被測定物に対して該光源が発した白色光を集光する2以上の集光手段と、該光源と該集光手段とを連通する2以上の第一の光路と、該2以上の第一の光路に配設され、該保持手段に保持された被測定物から反射した反射光を2以上の第二の光路に分岐する2以上の光分岐部と、該2以上の第二の光路に配設された2以上の回折格子と、該2以上の回折格子によって波長毎に分光された光の強度を検出し分光干渉波形を生成する2以上のイメージセンサーと、該2以上のイメージセンサーが生成した分光干渉波形から厚み情報を出力する厚み出力手段と、を少なくとも含み、
該集光手段は、被測定物の測定領域を分担するように配設された2以上のfθレンズと、各fθレンズに対応して配設される2以上のスキャナーとから構成され、
該厚み出力手段は、複数の厚みに対応した分光干渉波形を基準波形として記録した基準波形記録部と、該2以上のイメージセンサーが生成した2以上の分光干渉波形と該基準波形記録部に記録された基準波形とを照合して波形が一致した基準波形から、各分光干渉波形に対応した厚みを決定する厚み決定部と、を備えている厚み計測装置。 - 該基準波形記録部は、被測定物を構成する素材に応じて基準波形を記録した材質別基準波形記録部を複数備え、
該厚み出力手段の該厚み決定部は、該イメージセンサーが生成した分光干渉波形と該基準波形記録部が複数備えている該材質別基準波形記録部に記録された基準波形とを照合して波形が一致した基準波形が属する該材質別基準波形記録部を選定する請求項1に記載の厚み計測装置。 - 被測定物は少なくともA層とB層とを含み構成される複合ウエーハである請求項1、又は2に記載の厚み計測装置。
- 2種類以上の材質からなる被測定物は少なくともA層とB層とを含み構成されると共に、B層は、平面方向に2種類以上の材質で構成された複合ウエーハである請求項1乃至3のいずれかに記載された厚み計測装置。
- 該光源は、SLD光源、ASE光源、スーパーコンティニウム光源、LED光源、ハロゲン光源、キセノン光源、水銀光源、メタルハイライド光源のうちいずれかである請求項1乃至4のいずれかに記載の厚み計測装置。
- 請求項1乃至5のいずれかの厚み計測装置が配設された加工装置。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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JP2019188426A JP7358185B2 (ja) | 2019-10-15 | 2019-10-15 | 厚み計測装置、及び厚み計測装置を備えた加工装置 |
KR1020200118038A KR20210044686A (ko) | 2019-10-15 | 2020-09-15 | 두께 계측 장치 |
US17/065,225 US11845158B2 (en) | 2019-10-15 | 2020-10-07 | Thickness measuring apparatus |
TW109135002A TWI843904B (zh) | 2019-10-15 | 2020-10-08 | 厚度計測裝置 |
CN202011084697.7A CN112665510A (zh) | 2019-10-15 | 2020-10-12 | 厚度测量装置 |
DE102020212956.8A DE102020212956B4 (de) | 2019-10-15 | 2020-10-14 | Dickenmessvorrichtung |
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JP2019188426A JP7358185B2 (ja) | 2019-10-15 | 2019-10-15 | 厚み計測装置、及び厚み計測装置を備えた加工装置 |
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JP2021063716A true JP2021063716A (ja) | 2021-04-22 |
JP7358185B2 JP7358185B2 (ja) | 2023-10-10 |
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US (1) | US11845158B2 (ja) |
JP (1) | JP7358185B2 (ja) |
KR (1) | KR20210044686A (ja) |
CN (1) | CN112665510A (ja) |
DE (1) | DE102020212956B4 (ja) |
TW (1) | TWI843904B (ja) |
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US11845158B2 (en) | 2023-12-19 |
KR20210044686A (ko) | 2021-04-23 |
DE102020212956A1 (de) | 2021-04-15 |
CN112665510A (zh) | 2021-04-16 |
TW202117830A (zh) | 2021-05-01 |
US20210107112A1 (en) | 2021-04-15 |
JP7358185B2 (ja) | 2023-10-10 |
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TWI843904B (zh) | 2024-06-01 |
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