JPH09119814A5 - - Google Patents
Info
- Publication number
- JPH09119814A5 JPH09119814A5 JP1996224835A JP22483596A JPH09119814A5 JP H09119814 A5 JPH09119814 A5 JP H09119814A5 JP 1996224835 A JP1996224835 A JP 1996224835A JP 22483596 A JP22483596 A JP 22483596A JP H09119814 A5 JPH09119814 A5 JP H09119814A5
- Authority
- JP
- Japan
- Prior art keywords
- light
- signal
- probe
- collected
- exiting
- 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.)
- Granted
Links
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US520,199 | 1995-08-28 | ||
| US08/520,199 US5642196A (en) | 1995-08-28 | 1995-08-28 | Method and apparatus for measuring the thickness of a film using low coherence reflectometry |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPH09119814A JPH09119814A (ja) | 1997-05-06 |
| JPH09119814A5 true JPH09119814A5 (enExample) | 2004-07-29 |
| JP3814343B2 JP3814343B2 (ja) | 2006-08-30 |
Family
ID=24071580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22483596A Expired - Fee Related JP3814343B2 (ja) | 1995-08-28 | 1996-08-27 | フィルム厚の測定方法及び装置 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5642196A (enExample) |
| EP (1) | EP0762079A3 (enExample) |
| JP (1) | JP3814343B2 (enExample) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6198540B1 (en) | 1997-03-26 | 2001-03-06 | Kowa Company, Ltd. | Optical coherence tomography have plural reference beams of differing modulations |
| JPH10267610A (ja) * | 1997-03-26 | 1998-10-09 | Kowa Co | 光学測定装置 |
| US6406641B1 (en) | 1997-06-17 | 2002-06-18 | Luxtron Corporation | Liquid etch endpoint detection and process metrology |
| EP0947862A3 (en) | 1998-03-31 | 2004-03-17 | Ntt Advanced Technology Corporation | Method and apparatus for maintaining optical signal having low degree of polarization in specific state of polarization |
| RU2147728C1 (ru) * | 1998-11-10 | 2000-04-20 | Иванов Вадим Валерьевич | Интерферометрическое устройство для бесконтактного измерения толщины |
| US6172756B1 (en) | 1998-12-11 | 2001-01-09 | Filmetrics, Inc. | Rapid and accurate end point detection in a noisy environment |
| US6184985B1 (en) | 1998-12-11 | 2001-02-06 | Filmetrics, Inc. | Spectrometer configured to provide simultaneous multiple intensity spectra from independent light sources |
| US6204922B1 (en) | 1998-12-11 | 2001-03-20 | Filmetrics, Inc. | Rapid and accurate thin film measurement of individual layers in a multi-layered or patterned sample |
| US6822745B2 (en) * | 2000-01-25 | 2004-11-23 | Zygo Corporation | Optical systems for measuring form and geometric dimensions of precision engineered parts |
| US6806969B2 (en) * | 2001-10-19 | 2004-10-19 | Agilent Technologies, Inc. | Optical measurement for measuring a small space through a transparent surface |
| US7502121B1 (en) * | 2004-11-24 | 2009-03-10 | Ahbee 1, L.P. | Temperature insensitive low coherence based optical metrology for nondestructive characterization of physical characteristics of materials |
| JP4429886B2 (ja) * | 2004-12-09 | 2010-03-10 | 富士フイルム株式会社 | 光断層映像装置 |
| DE102008049972A1 (de) * | 2008-10-01 | 2010-04-22 | Peter Wolters Gmbh | Verfahren zum Messen der Dicke von in einer Bearbeitungsmaschine bearbeiteten scheibenförmigen Werkstücken |
| WO2013019776A2 (en) | 2011-08-01 | 2013-02-07 | University Of Florida Research Foundation, Inc. | Simultaneous refractive index and thickness measurments with a monochromatic low-coherence interferometer |
| US8829518B2 (en) | 2011-09-13 | 2014-09-09 | International Business Machines Corporation | Test structure and calibration method |
| CN107339943B (zh) * | 2017-04-25 | 2019-09-27 | 哈尔滨工程大学 | 偏振复用的共光路自校准薄膜厚度测量装置及测量方法 |
| JP7622857B2 (ja) * | 2021-09-13 | 2025-01-28 | 日本電信電話株式会社 | 光ファイバセンシング装置及び方法 |
| CN114234821A (zh) * | 2021-12-20 | 2022-03-25 | 南京大学 | 一种膜电极厚度检测装置及检测方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5323229A (en) * | 1992-08-31 | 1994-06-21 | Science Applications International Corporation | Measurement system using optical coherence shifting interferometry |
-
1995
- 1995-08-28 US US08/520,199 patent/US5642196A/en not_active Expired - Fee Related
-
1996
- 1996-08-13 EP EP96305912A patent/EP0762079A3/en not_active Ceased
- 1996-08-27 JP JP22483596A patent/JP3814343B2/ja not_active Expired - Fee Related
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