JP2017107816A - 熱電子放出用フィラメント、四重極質量分析計、及び残留ガス分析方法 - Google Patents
熱電子放出用フィラメント、四重極質量分析計、及び残留ガス分析方法 Download PDFInfo
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- JP2017107816A JP2017107816A JP2015242477A JP2015242477A JP2017107816A JP 2017107816 A JP2017107816 A JP 2017107816A JP 2015242477 A JP2015242477 A JP 2015242477A JP 2015242477 A JP2015242477 A JP 2015242477A JP 2017107816 A JP2017107816 A JP 2017107816A
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- electron emission
- filament
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- core material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/14—Solid thermionic cathodes characterised by the material
- H01J1/146—Solid thermionic cathodes characterised by the material with metals or alloys as an emissive material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/08—Electron sources, e.g. for generating photo-electrons, secondary electrons or Auger electrons
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/26—Mass spectrometers or separator tubes
- H01J49/34—Dynamic spectrometers
- H01J49/42—Stability-of-path spectrometers, e.g. monopole, quadrupole, multipole, farvitrons
- H01J49/4205—Device types
- H01J49/421—Mass filters, i.e. deviating unwanted ions without trapping
- H01J49/4215—Quadrupole mass filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
- H01J9/042—Manufacture, activation of the emissive part
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electron Tubes For Measurement (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Solid Thermionic Cathode (AREA)
Abstract
【解決手段】電流が流れる芯材211Aと、前記芯材211Aの表面を覆うように形成された電子放出層211Bとを具備する熱電子放出用フィラメント211であって、前記電子放出層211Bがガスを実質的に遮断する緻密さを有することを特徴とする。
【選択図】図3
Description
211A・・・芯材
211B・・・電子放出層
RGA・・・残留ガス分析計
Claims (7)
- 電流が流れる芯材と、前記芯材の表面を覆うように形成された電子放出層とを具備する熱電子放出用フィラメントであって、
前記電子放出層がガスを実質的に遮断する緻密さを有することを特徴とする熱電子放出用フィラメント。 - 前記電子放出層がCVD法、PVD法、又は溶射法のいずれか1つにより形成されたものである請求項1記載の熱電子放出用フィラメント。
- 形状が線状である請求項1又は2記載の熱電子放出用フィラメント。
- 前記電子放出層の厚さが1μmから30μmである請求項1、2又は3記載の熱電子放出用フィラメント。
- 前記芯材がイリジウムからなり、前記電子放出層が酸化イットリウムからなる請求項1、2、3、又は4記載の熱電子放出用フィラメント。
- 請求項1記載の熱電子放出用フィラメントを具備した四重極型質量分析計。
- 請求項6記載の四重極型質量分析計を用いて半導体プロセスチャンバ内の残留ガスを分析する残留ガス分析方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015242477A JP2017107816A (ja) | 2015-12-11 | 2015-12-11 | 熱電子放出用フィラメント、四重極質量分析計、及び残留ガス分析方法 |
US15/371,511 US10026582B2 (en) | 2015-12-11 | 2016-12-07 | Thermionic emission filament, quadrupole mass spectrometer and residual gas analyzing method |
EP16002630.8A EP3179502A1 (en) | 2015-12-11 | 2016-12-09 | Thermionic emission filament, quadrupole mass spectrometer and residual gas analyzing method |
Applications Claiming Priority (1)
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---|---|---|---|
JP2015242477A JP2017107816A (ja) | 2015-12-11 | 2015-12-11 | 熱電子放出用フィラメント、四重極質量分析計、及び残留ガス分析方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2017107816A true JP2017107816A (ja) | 2017-06-15 |
Family
ID=57542671
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JP2015242477A Pending JP2017107816A (ja) | 2015-12-11 | 2015-12-11 | 熱電子放出用フィラメント、四重極質量分析計、及び残留ガス分析方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US10026582B2 (ja) |
EP (1) | EP3179502A1 (ja) |
JP (1) | JP2017107816A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20210096310A (ko) | 2019-03-25 | 2021-08-04 | 아토나프 가부시키가이샤 | 가스 분석 장치 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20200066474A1 (en) * | 2018-08-22 | 2020-02-27 | Modern Electron, LLC | Cathodes with conformal cathode surfaces, vacuum electronic devices with cathodes with conformal cathode surfaces, and methods of manufacturing the same |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3372297A (en) | 1964-09-28 | 1968-03-05 | Varian Associates | High frequency electron discharge devices and thermionic cathodes having improved (cvd) refractory insulation coated heater wires |
DE2650656B2 (de) * | 1976-11-05 | 1978-09-07 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Kathode für Elektronenröhren |
DE3148441A1 (de) | 1981-12-08 | 1983-07-21 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Verfahren zur herstellung einer thermionischen kathode |
NL8304401A (nl) * | 1983-12-22 | 1985-07-16 | Philips Nv | Oxydkathode. |
KR0184849B1 (ko) * | 1990-07-18 | 1999-05-01 | 하지메 히토추야나기 | 다이아몬드 제조방법 및 장치 |
JP3595233B2 (ja) * | 2000-02-16 | 2004-12-02 | 株式会社ノリタケカンパニーリミテド | 電子放出源及びその製造方法 |
GB0129658D0 (en) * | 2001-12-11 | 2002-01-30 | Diamanx Products Ltd | Fast heating cathode |
JP4112449B2 (ja) * | 2003-07-28 | 2008-07-02 | 株式会社東芝 | 放電電極及び放電灯 |
US7850864B2 (en) | 2006-03-20 | 2010-12-14 | Tokyo Electron Limited | Plasma treating apparatus and plasma treating method |
JP5016031B2 (ja) * | 2007-05-15 | 2012-09-05 | 株式会社アルバック | 質量分析ユニット |
JP2009146639A (ja) * | 2007-12-12 | 2009-07-02 | Canon Inc | 電子放出素子、電子源、画像表示装置、および、電子放出素子の製造方法 |
JP5479238B2 (ja) | 2010-06-17 | 2014-04-23 | 株式会社アルバック | 四重極型質量分析計 |
-
2015
- 2015-12-11 JP JP2015242477A patent/JP2017107816A/ja active Pending
-
2016
- 2016-12-07 US US15/371,511 patent/US10026582B2/en active Active
- 2016-12-09 EP EP16002630.8A patent/EP3179502A1/en not_active Ceased
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20210096310A (ko) | 2019-03-25 | 2021-08-04 | 아토나프 가부시키가이샤 | 가스 분석 장치 |
KR20220070339A (ko) | 2019-03-25 | 2022-05-30 | 아토나프 가부시키가이샤 | 가스 분석 장치 |
US11557469B2 (en) | 2019-03-25 | 2023-01-17 | Atonarp Inc. | Gas analyzer apparatus |
KR20240026251A (ko) | 2019-03-25 | 2024-02-27 | 아토나프 가부시키가이샤 | 가스 분석 장치 |
US11942312B2 (en) | 2019-03-25 | 2024-03-26 | Atonarp Inc. | Gas analyzer apparatus |
Also Published As
Publication number | Publication date |
---|---|
EP3179502A1 (en) | 2017-06-14 |
US20170169981A1 (en) | 2017-06-15 |
US10026582B2 (en) | 2018-07-17 |
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