WO2007145712A3 - Slider bearing for use with an apparatus comprising a vacuum chamber - Google Patents

Slider bearing for use with an apparatus comprising a vacuum chamber Download PDF

Info

Publication number
WO2007145712A3
WO2007145712A3 PCT/US2007/010006 US2007010006W WO2007145712A3 WO 2007145712 A3 WO2007145712 A3 WO 2007145712A3 US 2007010006 W US2007010006 W US 2007010006W WO 2007145712 A3 WO2007145712 A3 WO 2007145712A3
Authority
WO
WIPO (PCT)
Prior art keywords
plate
base plate
hole
vacuum chamber
flexible
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.)
Ceased
Application number
PCT/US2007/010006
Other languages
French (fr)
Other versions
WO2007145712A2 (en
Inventor
Johannes Antonius Hend Persoon
Andreas Theodorus Engelen
Siegfried Lichtenegger
Dooren Petrus Henricus Joa Van
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FEI Co
Original Assignee
FEI Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by FEI Co filed Critical FEI Co
Priority to EP07756002A priority Critical patent/EP2033206B1/en
Priority to AT07756002T priority patent/ATE512457T1/en
Priority to CN200780020701XA priority patent/CN101461026B/en
Priority to JP2009514260A priority patent/JP5033873B2/en
Priority to PCT/US2007/010006 priority patent/WO2007145712A2/en
Priority to US12/303,715 priority patent/US8598524B2/en
Publication of WO2007145712A2 publication Critical patent/WO2007145712A2/en
Publication of WO2007145712A3 publication Critical patent/WO2007145712A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/26—Electron or ion microscopes; Electron or ion diffraction tubes
    • H01J37/28—Electron or ion microscopes; Electron or ion diffraction tubes with scanning beams
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/02—Details
    • H01J37/18—Vacuum locks ; Means for obtaining or maintaining the desired pressure within the vessel
    • H01J37/185—Means for transferring objects between different enclosures of different pressure or atmosphere
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/02—Details
    • H01J37/20—Means for supporting or positioning the object or the material; Means for adjusting diaphragms or lenses associated with the support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
    • H01J2237/16—Vessels
    • H01J2237/166—Sealing means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
    • H01J2237/18—Vacuum control means
    • H01J2237/184—Vacuum locks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
    • H01J2237/20—Positioning, supporting, modifying or maintaining the physical state of objects being observed or treated
    • H01J2237/2005—Seal mechanisms
    • H01J2237/2006—Vacuum seals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
    • H01J2237/20—Positioning, supporting, modifying or maintaining the physical state of objects being observed or treated
    • H01J2237/204—Means for introducing and/or outputting objects

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Sliding-Contact Bearings (AREA)
  • Sliding Valves (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

A slider bearing for use with an apparatus comprising a vacuum chamber (11).The slider bearing comprises: a base plate (20) in contact with the vacuum chamber (11) at one side, said base plate showing a first through-hole (21) in contact with the vacuum chamber (11), a second plate (30), one side of the second plate in contact with the base plate (20), said second plate showing a second through-hole (31), the faces of the base plate and the second plate facing each other being sufficiently smooth to form a non-elastomeric vacuum seal, said base plate (20) and said second plate (30) slidable between a first relative position in which the first through-hole (21) and the second through-hole (31) do not overlap and a second relative position in which the first through-hole and the second through-hole overlap, characterised in that the second plate (30) is a flexible plate, the face of the flexible plate opposite to the base plate is equipped to seal against a cup (50), the cup equipped to hold a sample (1), the first through-hole (21) in the base plate shows a rim facing the flexible plate (30) with a controlled curvature, the curvature of the rim formed such that the vacuum seal between the base plate and the flexible plate forms on a pre-defined contour and that the Hertzian contact pressure is smaller than a pre-defined maximum contact pressure, the pre-determined maximum contact pressure chosen to minimise particle generation. By forming the second plate as a flexible plate the pressure with which the base plate and the second plate are pressed together is better reproducible than when both plates are rigid. By forming the rim with a controlled radius, the particle generation is minimized.
PCT/US2007/010006 2006-06-07 2007-04-26 Slider bearing for use with an apparatus comprising a vacuum chamber Ceased WO2007145712A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP07756002A EP2033206B1 (en) 2006-06-07 2007-04-26 Slider bearing for use with an apparatus comprising a vacuum chamber
AT07756002T ATE512457T1 (en) 2006-06-07 2007-04-26 PLAIN BEARING FOR USE WITH A DEVICE COMPRISING A VACUUM CHAMBER
CN200780020701XA CN101461026B (en) 2006-06-07 2007-04-26 Plain bearings for use with devices containing vacuum chambers
JP2009514260A JP5033873B2 (en) 2006-06-07 2007-04-26 Slider bearing for use with equipment having a vacuum chamber
PCT/US2007/010006 WO2007145712A2 (en) 2006-06-07 2007-04-26 Slider bearing for use with an apparatus comprising a vacuum chamber
US12/303,715 US8598524B2 (en) 2006-06-07 2007-04-26 Slider bearing for use with an apparatus comprising a vacuum chamber

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US81162106P 2006-06-07 2006-06-07
US60/811,621 2006-06-07
PCT/US2007/010006 WO2007145712A2 (en) 2006-06-07 2007-04-26 Slider bearing for use with an apparatus comprising a vacuum chamber

Publications (2)

Publication Number Publication Date
WO2007145712A2 WO2007145712A2 (en) 2007-12-21
WO2007145712A3 true WO2007145712A3 (en) 2008-04-17

Family

ID=40343642

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/010006 Ceased WO2007145712A2 (en) 2006-06-07 2007-04-26 Slider bearing for use with an apparatus comprising a vacuum chamber

Country Status (5)

Country Link
US (1) US8598524B2 (en)
EP (1) EP2033206B1 (en)
JP (1) JP5033873B2 (en)
AT (1) ATE512457T1 (en)
WO (1) WO2007145712A2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1816668A2 (en) 2006-02-01 2007-08-08 FEI Company Particle-optical apparatus with a predetermined final vacuum pressure
JP5033873B2 (en) 2006-06-07 2012-09-26 エフ イー アイ カンパニ Slider bearing for use with equipment having a vacuum chamber
CN101461026B (en) 2006-06-07 2012-01-18 Fei公司 Plain bearings for use with devices containing vacuum chambers
WO2009074803A1 (en) 2007-12-11 2009-06-18 Isentropic Limited Valve
EP2292953A1 (en) 2009-09-07 2011-03-09 Fei Company High-vacuum seal
FR2979684B1 (en) * 2011-09-07 2014-08-08 Commissariat Energie Atomique DEVICE FOR RELATIVE MOVEMENT OF TWO PIECES UNDER DIFFERENTIAL PRESSURE
JP5989471B2 (en) * 2012-09-14 2016-09-07 日本発條株式会社 Piezoelectric element supply method
US20150097485A1 (en) * 2013-10-08 2015-04-09 XEI Scientific Inc. Method and apparatus for plasma ignition in high vacuum chambers
TWI674392B (en) * 2014-03-27 2019-10-11 日商荏原製作所股份有限公司 Ceiling plate opening and closing mechanism, and inspection device
NL2013432B1 (en) 2014-09-05 2016-09-28 Delmic B V Compact inspection apparatus comprising a combination of a Scanning Electron Microscope and an Optical microscope.
CN108984933B (en) * 2018-07-25 2022-05-20 太原科技大学 Boundary element method for calculating load and pressure of rolling bearing under elastohydrodynamic lubrication condition
KR102198707B1 (en) * 2019-03-25 2021-01-05 (주)코셈 Scanning electron microscope having a removable column and, image acquisition methods using the same
US12205807B2 (en) * 2020-04-01 2025-01-21 Mstm, Llc Multi-mode ionization apparatus and uses thereof

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EP1622185A1 (en) * 2004-07-01 2006-02-01 FEI Company Apparatus for evacuating a sample

Also Published As

Publication number Publication date
WO2007145712A2 (en) 2007-12-21
EP2033206A2 (en) 2009-03-11
US8598524B2 (en) 2013-12-03
JP2009540499A (en) 2009-11-19
JP5033873B2 (en) 2012-09-26
US20100276592A1 (en) 2010-11-04
ATE512457T1 (en) 2011-06-15
EP2033206B1 (en) 2011-06-08

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