KR100250453B1 - 브래그 거울의 식각을 실시간으로 감지하는 방법 - Google Patents
브래그 거울의 식각을 실시간으로 감지하는 방법 Download PDFInfo
- Publication number
- KR100250453B1 KR100250453B1 KR1019970064811A KR19970064811A KR100250453B1 KR 100250453 B1 KR100250453 B1 KR 100250453B1 KR 1019970064811 A KR1019970064811 A KR 1019970064811A KR 19970064811 A KR19970064811 A KR 19970064811A KR 100250453 B1 KR100250453 B1 KR 100250453B1
- Authority
- KR
- South Korea
- Prior art keywords
- etching
- laser beam
- specimen
- laser
- bragg mirror
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1847—Manufacturing methods
- G02B5/1857—Manufacturing methods using exposure or etching means, e.g. holography, photolithography, exposure to electron or ion beams
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P74/00—Testing or measuring during manufacture or treatment of wafers, substrates or devices
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B2006/12083—Constructional arrangements
- G02B2006/12104—Mirror; Reflectors or the like
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B2006/12166—Manufacturing methods
- G02B2006/12176—Etching
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Weting (AREA)
- Drying Of Semiconductors (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
Abstract
Description
Claims (3)
- 식각 용액 속에 담겨있는 시편에 레이저 빔을 조사하되, 상기 시편의 표면 전체에 균일한 빔이 조사되도록 볼록 렌즈를 이용하여 레이저 빙을 분산시켜 조사하는 단계와,상기 시편에서 반사된 상기 레이저 빔을 볼록 렌즈를 이용하여 검출기로 입사되도록 하는 단계와,상기 검출기에 연결된 컴퓨터를 통하여, 상기 검출기로 입사된 레이저 광의 주기적 신호를 해석하여 식각 속도를 실시간으로 감지하는 단계를 포함하여 이루어지는 것을 특징으로 하는 브래그 거울의 식각을 실시간으로 감지하는 방법.
- 제 1 항에 있어서,상기 시편은 브래그 거울 구조가 형성된 표면 발광 레이저 소자인 것을 특징으로 하는 브래그 거울의 식각을 실시간으로 감지하는 방법.
- 제 1 항에 있어서,상기 주기적 신호는 1 주기가 상기 시편을 구성하고 있는 브래그 거울의 1 주기인 것을 특징으로 하는 브래그 거울의 식각을 실시간으로 감지하는 방법.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970064811A KR100250453B1 (ko) | 1997-11-29 | 1997-11-29 | 브래그 거울의 식각을 실시간으로 감지하는 방법 |
| US09/143,484 US6193900B1 (en) | 1997-11-29 | 1998-08-28 | Method for sensing etch of distributed bragg reflector in real time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970064811A KR100250453B1 (ko) | 1997-11-29 | 1997-11-29 | 브래그 거울의 식각을 실시간으로 감지하는 방법 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19990043769A KR19990043769A (ko) | 1999-06-15 |
| KR100250453B1 true KR100250453B1 (ko) | 2000-04-01 |
Family
ID=19526102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019970064811A Expired - Fee Related KR100250453B1 (ko) | 1997-11-29 | 1997-11-29 | 브래그 거울의 식각을 실시간으로 감지하는 방법 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US6193900B1 (ko) |
| KR (1) | KR100250453B1 (ko) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100357981B1 (ko) * | 2000-06-29 | 2002-10-25 | 삼성전자 주식회사 | 회절격자 제조장치 및 그 제조방법 |
| TW589690B (en) * | 2001-03-07 | 2004-06-01 | United Microelectronics Corp | On-line monitoring silicon nitride loss method |
| KR101379915B1 (ko) * | 2008-03-26 | 2014-04-01 | 엘지이노텍 주식회사 | 종말점 검출 장치 및 이를 구비한 식각 장치 그리고 종말점검출방법 |
| US9656590B2 (en) * | 2014-05-15 | 2017-05-23 | Lippert Components, Inc. | Bed lift mounting member |
| JP6790731B2 (ja) * | 2016-11-01 | 2020-11-25 | 東洋製罐グループホールディングス株式会社 | ダイヤモンド膜表面に微細周期構造溝を形成する方法 |
| CN112697680B (zh) * | 2019-10-23 | 2023-04-28 | 航天科工惯性技术有限公司 | 一种玻璃化学蚀刻速率在线检测装置和方法 |
| CN112764145A (zh) * | 2021-02-01 | 2021-05-07 | 西安交通大学 | 一种基于时序控制的二维光栅高效制造方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5789474A (en) * | 1980-11-21 | 1982-06-03 | Hitachi Ltd | Detection of final point of etching and apparatus therefor |
| JPS5974635A (ja) * | 1982-10-22 | 1984-04-27 | Hitachi Ltd | エツチング深さ検出方法 |
| US5582746A (en) | 1992-12-04 | 1996-12-10 | International Business Machines Corporation | Real time measurement of etch rate during a chemical etching process |
| US5392124A (en) * | 1993-12-17 | 1995-02-21 | International Business Machines Corporation | Method and apparatus for real-time, in-situ endpoint detection and closed loop etch process control |
| US5468656A (en) * | 1994-11-29 | 1995-11-21 | Motorola | Method of making a VCSEL |
| DE69510032T2 (de) | 1995-03-31 | 2000-01-27 | International Business Machines Corp., Armonk | Verfahren und Gerät zur Überwachung des Trockenätzens eines dielektrischen Films bis zu einer gegebenen Dicke |
-
1997
- 1997-11-29 KR KR1019970064811A patent/KR100250453B1/ko not_active Expired - Fee Related
-
1998
- 1998-08-28 US US09/143,484 patent/US6193900B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| KR19990043769A (ko) | 1999-06-15 |
| US6193900B1 (en) | 2001-02-27 |
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