KR0149886B1 - 두 파장의 적외선 레이저 간섭계를 이용한 웨이퍼 온도 측정장치 - Google Patents
두 파장의 적외선 레이저 간섭계를 이용한 웨이퍼 온도 측정장치 Download PDFInfo
- Publication number
- KR0149886B1 KR0149886B1 KR1019940031730A KR19940031730A KR0149886B1 KR 0149886 B1 KR0149886 B1 KR 0149886B1 KR 1019940031730 A KR1019940031730 A KR 1019940031730A KR 19940031730 A KR19940031730 A KR 19940031730A KR 0149886 B1 KR0149886 B1 KR 0149886B1
- Authority
- KR
- South Korea
- Prior art keywords
- wafer
- temperature
- infrared
- infrared rays
- optical window
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 28
- 230000007423 decrease Effects 0.000 claims abstract description 10
- 238000011065 in-situ storage Methods 0.000 claims abstract description 6
- 239000004065 semiconductor Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 12
- 238000005530 etching Methods 0.000 claims description 9
- 230000001678 irradiating effect Effects 0.000 abstract description 3
- 235000012431 wafers Nutrition 0.000 description 56
- 238000009529 body temperature measurement Methods 0.000 description 7
- 238000011109 contamination Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005137 deposition process Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- 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
- H01L22/30—Structural arrangements specially adapted for testing or measuring during manufacture or treatment, or specially adapted for reliability measurements
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Radiation Pyrometers (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Drying Of Semiconductors (AREA)
Abstract
Description
Claims (2)
- 고진공을 유지하는 반도체 식각장비내의 웨이퍼 또는 기판의 온도를 측정하기 위한 웨이퍼 온도 측정장치에 있어서, 광원으로서 서로 다른 파장을 갖는 적외선을 각각 방출하는 제1 및 제2적외선 레이저; 상기 적외선 레이저에서 방출된 적외선들을 웨이퍼가 장착된 진공챔버내로 입사시키기 위한 챔버벽에 형성된 광학창과, 이 광학창을 투과한 레이저빔이 웨이퍼 후면에 입사되도록 레이저 빔의 광경로를 조정하기 위한 프리즘; 상기 광학창을 웨이퍼에서 반사된 빔을 반사시키기 위한 폴라라이저(polarizer); 상기 폴라라이저에서 반사된 빔을 파장별로 분리하기 위한 2색(dichroic) 빔 분리경; 상기 2색빔 분리경을 통하여 분리된 적외선들을 각각 감지하기 위한 적외선 센서; 및 상기 적외선 센서들에서 감지된 간섭 프린지(fringe) 위상차를 비교하는 위상 비교기(phase comparator)를 구비하여 웨이퍼 전면의 상태와 관계없이 공정중에 인-시튜(in-situ), 비접촉식으로 웨이퍼 온도와 아울러 온도의 증, 감소 방향을 측정할 수 있는 웨이퍼 온도 측정장치.
- 제1항에 있어서, 상기 제1 및 제2적외선 레이저의 광원으로서 상기 웨이퍼 또는 기판으로 사용된 반도체의 에너지 갭보다 작은 에너지에 해당하는 파장을 갖는 적외선을 사용하는 것을 특징으로 하는 웨이퍼 온도 측정장치.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940031730A KR0149886B1 (ko) | 1994-11-29 | 1994-11-29 | 두 파장의 적외선 레이저 간섭계를 이용한 웨이퍼 온도 측정장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940031730A KR0149886B1 (ko) | 1994-11-29 | 1994-11-29 | 두 파장의 적외선 레이저 간섭계를 이용한 웨이퍼 온도 측정장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960019638A KR960019638A (ko) | 1996-06-17 |
KR0149886B1 true KR0149886B1 (ko) | 1999-04-15 |
Family
ID=19399452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940031730A KR0149886B1 (ko) | 1994-11-29 | 1994-11-29 | 두 파장의 적외선 레이저 간섭계를 이용한 웨이퍼 온도 측정장치 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0149886B1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100636016B1 (ko) * | 2000-11-06 | 2006-10-18 | 삼성전자주식회사 | 반도체 제조를 위한 기판의 온도를 측정하는 방법 및 장치 |
KR100681678B1 (ko) * | 2005-07-08 | 2007-02-09 | 동부일렉트로닉스 주식회사 | 공정 챔버 내부의 온도 측정 방법 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100475030B1 (ko) * | 1998-03-06 | 2005-04-14 | 삼성전자주식회사 | 반도체장치제조용챔버를플라즈마를이용하여세정하는방법 |
KR20020029453A (ko) * | 2000-10-13 | 2002-04-19 | 조길천 | 비접촉식 반도체 표면 온도 측정장치 |
US6570713B2 (en) * | 2001-02-27 | 2003-05-27 | Silicon Valley Group, Inc. | Method and apparatus for optimizing the output beam characteristics of a laser |
-
1994
- 1994-11-29 KR KR1019940031730A patent/KR0149886B1/ko not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100636016B1 (ko) * | 2000-11-06 | 2006-10-18 | 삼성전자주식회사 | 반도체 제조를 위한 기판의 온도를 측정하는 방법 및 장치 |
KR100681678B1 (ko) * | 2005-07-08 | 2007-02-09 | 동부일렉트로닉스 주식회사 | 공정 챔버 내부의 온도 측정 방법 |
Also Published As
Publication number | Publication date |
---|---|
KR960019638A (ko) | 1996-06-17 |
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