KR101259218B1 - 반도체 처리 툴의 용량성 거리 감지 장치 및 방법 - Google Patents
반도체 처리 툴의 용량성 거리 감지 장치 및 방법 Download PDFInfo
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- KR101259218B1 KR101259218B1 KR1020087020558A KR20087020558A KR101259218B1 KR 101259218 B1 KR101259218 B1 KR 101259218B1 KR 1020087020558 A KR1020087020558 A KR 1020087020558A KR 20087020558 A KR20087020558 A KR 20087020558A KR 101259218 B1 KR101259218 B1 KR 101259218B1
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- capacitance
- showerhead
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- 238000012545 processing Methods 0.000 title claims abstract description 24
- 239000004065 semiconductor Substances 0.000 title claims abstract description 22
- 238000005259 measurement Methods 0.000 claims abstract description 29
- 238000004891 communication Methods 0.000 claims abstract description 14
- 239000003990 capacitor Substances 0.000 claims description 27
- 239000000758 substrate Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 230000005284 excitation Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 9
- 230000006870 function Effects 0.000 description 5
- 239000000523 sample Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 235000012431 wafers Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000007796 conventional method Methods 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
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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- 238000001228 spectrum Methods 0.000 description 1
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Classifications
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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
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/14—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
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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
- 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
- G01B7/023—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring distance between sensor and object
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/24—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
- G01D5/241—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes
- G01D5/2417—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes by varying separation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Description
Claims (21)
- 플래튼 위에 놓여지는 하우징;상기 하우징 내에 배치된 배터리;상기 배터리에 연결된 무선통신 회로;상기 무선통신 회로와 배터리에 연결된 컨트롤러;각각이 플래튼과 전도성 샤워헤드 사이의 거리에 상당하는 정전용량을 갖고, 커패시터를 형성하는 복수의 용량 플레이트;상기 컨트롤러와 복수의 용량 플레이트에 연결되고, 각각의 커패시터의 정전용량을 측정하여 컨트롤러에 그 표시를 제공하는 측정 회로를 포함하고,상기 컨트롤러는 측정된 정전용량에 적어도 일부분 기반하여 플래튼과 전도성 샤워헤드에 관한 거리 및 평행 표시를 제공하는 것을 특징으로 하는, 반도체 처리 챔버 내의 대상물에 대한 거리를 감지하는 센서.
- 제1항에 있어서, 상기 복수의 용량 플레이트는 짝수의 용량 플레이트인 것을 특징으로 하는, 반도체 처리 챔버 내의 대상물에 대한 거리를 감지하는 센서.
- 제2항에 있어서, 상기 짝수의 용량 플레이트 중의 제1 절반은 양극 여기 전압으로 구동되고, 상기 짝수 용량 플레이트들 중에 다른 절반은 음극 여기 전압으로 구동되는 것을 특징으로 하는, 반도체 처리 챔버 내의 대상물에 대한 거리를 감지하는 센서.
- 제2항에 있어서, 상기 제1 용량 플레이트는 하우징 내에 배치되고 샤워헤드에 확장될 수 있는 표면에 연결되고, 제2 용량 플레이트는 하우징 내에 고정되고, 그리고 커패시터가 상기 제1 및 제2 플레이트 사이에 형성되고, 표면이 확장되는 정도에 따라 가변하는 정전용량을 갖는 것을 특징으로 하는, 반도체 처리 챔버 내의 대상물에 대한 거리를 감지하는 센서.
- 제4항에 있어서, 상기 표면에 연결되고, 컨트롤러에 연결되어 선택가능한 확장 정도를 제공하는 액츄에이터를 더 포함하는 것을 특징으로 하는, 반도체 처리 챔버 내의 대상물에 대한 거리를 감지하는 센서.
- 제4항에 있어서, 상기 센서는 외부의 대기압 또는 대기압의 부족에 따라 밀봉되고, 상기 확장 가능한 표면은 압축되거나 확장되는 것을 특징으로 하는, 반도체 처리 챔버 내의 대상물에 대한 거리를 감지하는 센서.
- 제2항에 있어서, 상기 짝수는 2인 것을 특징으로 하는, 반도체 처리 챔버 내의 대상물에 대한 거리를 감지하는 센서.
- 제1항에 있어서, 상기 측정 회로는 시그마-델타 변조기를 포함하는 것을 특징으로 하는, 반도체 처리 챔버 내의 대상물에 대한 거리를 감지하는 센서.
- 제1항에 있어서, 상기 표시는 평행인 것을 특징으로 하는, 반도체 처리 챔버 내의 대상물에 대한 거리를 감지하는 센서.
- 제9항에 있어서, 상기 표시는 버블-상 비유를 표현하는 사용자 인터페이스에서 제공되는 것을 특징으로 하는, 반도체 처리 챔버 내의 대상물에 대한 거리를 감지하는 센서.
- 삭제
- 삭제
- 제1항에 있어서, 상기 무선통신 회로는 무선주파수 통신 회로인 것을 특징으로 하는, 반도체 처리 챔버 내의 대상물에 대한 거리를 감지하는 센서.
- 제1항에 있어서, 상기 컨트롤러는, 적어도 하나의 용량 플레이트와 센서가 놓인 표면 사이의 알려진 고정 오프셋 거리 및 측정된 정전용량에 기반하여, 도전성 샤워헤드와 플래튼 위의 표면 사이의 거리를 계산하는 것을 특징으로 하는, 반도체 처리 챔버 내의 대상물에 대한 거리를 감지하는 센서.
- 제1항에 있어서, 상기 센서는 처리 챔버에 의하여 처리되는 기판과 같은 물리적 패키지 내에 구현되는 것을 특징으로 하는, 반도체 처리 챔버 내의 대상물에 대한 거리를 감지하는 센서.
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Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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US77539406P | 2006-02-21 | 2006-02-21 | |
US77530806P | 2006-02-21 | 2006-02-21 | |
US60/775,308 | 2006-02-21 | ||
US60/775,394 | 2006-02-21 | ||
PCT/US2007/004350 WO2007098149A2 (en) | 2006-02-21 | 2007-02-20 | Capacitive distance sensing in semiconductor processing tools |
Publications (3)
Publication Number | Publication Date |
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KR20080110732A KR20080110732A (ko) | 2008-12-19 |
KR101259218B1 true KR101259218B1 (ko) | 2013-04-29 |
KR101259218B9 KR101259218B9 (ko) | 2021-10-15 |
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Application Number | Title | Priority Date | Filing Date |
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KR1020087020558A KR101259218B1 (ko) | 2006-02-21 | 2007-02-20 | 반도체 처리 툴의 용량성 거리 감지 장치 및 방법 |
Country Status (7)
Country | Link |
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US (1) | US7804306B2 (ko) |
JP (1) | JP2009527764A (ko) |
KR (1) | KR101259218B1 (ko) |
CN (1) | CN101410690B (ko) |
DE (1) | DE112007000433T5 (ko) |
GB (1) | GB2450261A (ko) |
WO (1) | WO2007098149A2 (ko) |
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KR101273921B1 (ko) | 2013-01-16 | 2013-06-12 | (주)코셈 | 정전용량 센서 어레이 패널을 이용한 콜렛의 수평도 및 압력 측정 시스템 |
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KR20080110732A (ko) | 2008-12-19 |
GB0814226D0 (en) | 2008-09-10 |
GB2450261A (en) | 2008-12-17 |
KR101259218B9 (ko) | 2021-10-15 |
CN101410690A (zh) | 2009-04-15 |
US20070222462A1 (en) | 2007-09-27 |
WO2007098149A3 (en) | 2008-01-03 |
JP2009527764A (ja) | 2009-07-30 |
WO2007098149A2 (en) | 2007-08-30 |
US7804306B2 (en) | 2010-09-28 |
CN101410690B (zh) | 2011-11-23 |
DE112007000433T5 (de) | 2009-01-02 |
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