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DE102019006722B3 - Device for positioning the samples to be examined - Google Patents

Device for positioning the samples to be examined Download PDF

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Publication number
DE102019006722B3
DE102019006722B3 DE102019006722.3A DE102019006722A DE102019006722B3 DE 102019006722 B3 DE102019006722 B3 DE 102019006722B3 DE 102019006722 A DE102019006722 A DE 102019006722A DE 102019006722 B3 DE102019006722 B3 DE 102019006722B3
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Germany
Prior art keywords
samples
vacuum space
metal bellows
examined
slat
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Expired - Fee Related
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DE102019006722.3A
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German (de)
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Patentinhaber gleich
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/02Details
    • H01J37/20Means for supporting or positioning the object or the material; Means for adjusting diaphragms or lenses associated with the support
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2237/00Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
    • H01J2237/20Positioning, supporting, modifying or maintaining the physical state of objects being observed or treated
    • H01J2237/2005Seal mechanisms
    • H01J2237/2006Vacuum seals
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2237/00Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
    • H01J2237/20Positioning, supporting, modifying or maintaining the physical state of objects being observed or treated
    • H01J2237/201Positioning, supporting, modifying or maintaining the physical state of objects being observed or treated for mounting multiple objects
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2237/00Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
    • H01J2237/20Positioning, supporting, modifying or maintaining the physical state of objects being observed or treated
    • H01J2237/202Movement
    • H01J2237/20221Translation
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2237/00Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
    • H01J2237/20Positioning, supporting, modifying or maintaining the physical state of objects being observed or treated
    • H01J2237/202Movement
    • H01J2237/20292Means for position and/or orientation registration

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  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

Die vorgeschlagene Erfindung gehört zu den Einrichtungen zur Untersuchung von Materialien in einer Vakuumkammer und kann Anwendung in der elektronischen Mikroskopie finden.Hauptanspruch: Vorrichtung zum Positionieren der zu untersuchenden Proben in dem Elektronenstrahl eines elektronischen Mikroskops, einschließend eine Latte mit einigen Buchsen für Proben, die in eine Richtung mittels eines Mechanismus verschoben und in verschiedenen Positionen fixiert werden kann und die sich in dem Vakuumraum eines elektronischen Mikroskops befindet, dadurch gekennzeichnet, dass ein Teil dieser Latte sich außer dem Vakuumraum befindet und mit dem anderen Teil dieser Latte mittels eines Metallbalgs verbunden ist, wobei der Verschieb- und Fixiermechanismus sich außer dem Metallbalg befindet.The proposed invention belongs to the devices for the examination of materials in a vacuum chamber and can find application in electronic microscopy. Main claim: Device for positioning the samples to be examined in the electron beam of an electronic microscope, including a lath with some sockets for samples which are in a direction can be shifted by means of a mechanism and fixed in different positions and which is located in the vacuum space of an electronic microscope, characterized in that part of this slat is outside the vacuum space and is connected to the other part of this slat by means of a metal bellows, the displacement and fixing mechanism is located outside of the metal bellows.

Description

Die vorgeschlagene Erfindung gehört zu den Einrichtungen zur Untersuchung von Materialien in einer Vakuumkammer und kann Anwendung in der elektronischen Mikroskopie finden.The proposed invention is one of the devices for examining materials in a vacuum chamber and can be used in electronic microscopy.

Es ist eine Vorrichtung zum Positionieren der zu untersuchenden Proben in dem Elektronenstrahl eines elektronischen Mikroskops, einschließend eine Latte mit einigen Buchsen für Proben, die in eine Richtung mittels eines Mechanismus verschoben und in verschiedenen Positionen fixiert werden kann und die sich in dem Vakuumraum eines elektronischen Mikroskops befindet, bekannt (siehe zum Beispiel US 4 797 261 A , EP 3 032 564 A1 ). Das Problem mit bekannten Vorrichtungen besteht darin, dass ein Mechanismus zur Bewegung der Latte in dem Vakuumraum zu platzieren eine Vergrößerung des Vakuumraumes fordert, was unerwünscht und kompliziert ist. Außerdem kann dieser Mechanismus als eine Quelle von Gaspartikeln sein, was unerwünscht ist. Eine Bewegung der Latte durch die Wand des Vakuumraumes kann Luftzufluss in dem Vakuumraum verursachen. Man soll diese Bewegung so organisieren, dass sie bequem wird und kein Zufluss der Luft in dem Vakuumraum verursacht.It is a device for positioning the samples to be examined in the electron beam of an electronic microscope, including a rod with some sockets for samples, which can be moved in one direction by means of a mechanism and fixed in different positions and which is located in the vacuum space of an electronic microscope is known (see for example U.S. 4,797,261 A , EP 3 032 564 A1 ). The problem with known devices is that placing a mechanism for moving the bar in the vacuum space requires an increase in the vacuum space, which is undesirable and complicated. In addition, this mechanism can act as a source of gas particles, which is undesirable. Movement of the bar through the wall of the vacuum space can cause air to flow into the vacuum space. One should organize this movement in such a way that it becomes comfortable and does not cause an influx of air into the vacuum space.

Der Erfinder schlägt eine Lösung dieses Problems vor. Sie ist mittels Merkmale der Ansprüche beschrieben.The inventor proposes a solution to this problem. It is described by means of features of the claims.

Auf der Zeichnung ist die vorgeschlagene Vorrichtung schematisch abgebildet.The proposed device is shown schematically in the drawing.

In einem Vakuumraum 1 befindet sich ein erster Teil 2 der Latte, die einige Büchsen 3, 4, 5 und 6 für zu untersuchenden Proben trägt. Der Teil 2 stützt auf einen Kugelgelenk 7, der mittels einigen Trägern 8 an eine Wand des Vakuumraumes 1 befestigt sind. Für eine stabile Position des Kugelgelenkes 7 braucht man mindestens drei Trägern 8. Der Teil 2 kann durch den Kugelgelenk 7 in axiale Richtung frei bewegen. Ein zweiter Teil 9 der Latte (faktisch eine Verlängerung des Teils 2) geht durch den Boden eines Metallbalges 10, dessen Wände an die Wand des Vakuumraumes 1 befestigt sind.In a vacuum room 1 there is a first part 2 the latte that some cans 3 , 4th , 5 and 6 for samples to be examined. The part 2 based on a ball joint 7th that by means of several vehicles 8th on a wall of the vacuum space 1 are attached. For a stable position of the ball joint 7th you need at least three carriers 8th . The part 2 can through the ball joint 7th Move freely in the axial direction. A second part 9 the lath (in fact an extension of the part 2 ) goes through the bottom of a metal bellows 10 whose walls are against the wall of the vacuum space 1 are attached.

Eine axiale Verschiebung der beiden Teile 2 und 9 der Leiste ist mittels einer Schraube 11, die in einer Schraubenmutter 12 sitzt und einen Handgriff 13 hat, möglich. Eine vertikale Verschiebung den Enden des Teils 9 ist mittels zwei Schrauben 14 und 15 möglich, die auch in ihren Schraubenmuttern sitzen und Handgriffe haben. Eine Verschiebung den Enden des Teils 9 in der Richtung, die der Fläche der Zeichnung perpendikulär ist, ist mittels zwei Schrauben 16 und 17 möglich, die auch in ihren Schraubenmuttern sitzen und Handgriffe haben.An axial displacement of the two parts 2 and 9 the bar is by means of a screw 11 that is in a screw nut 12th sits and a handle 13th has, possible. A vertical shift of the ends of the part 9 is by means of two screws 14th and 15th possible, which also sit in their nuts and have handles. A shift to the ends of the part 9 in the direction perpendicular to the face of the drawing is by means of two screws 16 and 17th possible, which also sit in their nuts and have handles.

Mit Hilfe der Schrauben 11, 14, 15, 16, 17 kann man die Positionen der Büchsen 3, 4, 5, 6 ganz genau hinter dem Elektronenstrahl des elektronischen Mikroskop bestimmen, der Metallbalg 10 verhindert dabei ein Luftzufuhr.With the help of the screws 11 , 14th , 15th , 16 , 17th one can see the positions of the cans 3 , 4th , 5 , 6 Determine exactly behind the electron beam of the electronic microscope, the metal bellows 10 prevents an air supply.

Die vorgeschlagene Erfindung ist leicht zu verwirklichen.The proposed invention is easy to implement.

Claims (2)

Vorrichtung zum Positionieren der zu untersuchenden Proben in dem Elektronenstrahl eines elektronischen Mikroskops, einschließend eine Latte (2, 9) mit einigen Buchsen (3, 4, 5, 6) für Proben, die in eine Richtung mittels eines Mechanismus (11, 12, 13) verschoben und in verschiedenen Positionen fixiert werden kann und die sich in dem Vakuumraum (1) eines elektronischen Mikroskops befindet, dadurch gekennzeichnet, dass sich ein Teil (9) dieser Latte außerhalb des Vakuumraums (1) befindet und mit einem anderen Teil (2) dieser Latte mittels eines Metallbalgs (10) verbunden ist, wobei sich der Verschieb- und Fixiermechanismus (11, 12, 13) außerhalb des Metallbalgs befindet.Device for positioning the samples to be examined in the electron beam of an electronic microscope, including a lath (2, 9) with some sockets (3, 4, 5, 6) for samples moving in one direction by means of a mechanism (11, 12, 13 ) can be moved and fixed in different positions and which is located in the vacuum space (1) of an electronic microscope, characterized in that a part (9) of this bar is located outside the vacuum space (1) and with another part (2) this lath is connected by means of a metal bellows (10), the displacement and fixing mechanism (11, 12, 13) being located outside the metal bellows. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Mechanismus (11, 12, 13) zum Verschieben der Latte einige Schrauben (11, 14, 15, 16, 17) enthält, die sich außerhalb des Metallbalges befinden, mit ihren Enden den zweiten Teil der Latte berühren und diesen Teil in drei einander perpendikulären Richtungen bewegen können.Device according to Claim 1 , characterized in that the mechanism (11, 12, 13) for moving the slat contains some screws (11, 14, 15, 16, 17) which are located outside the metal bellows, with their ends touching the second part of the slat and can move this part in three mutually perpendicular directions.
DE102019006722.3A 2019-09-25 2019-09-25 Device for positioning the samples to be examined Expired - Fee Related DE102019006722B3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102019006722.3A DE102019006722B3 (en) 2019-09-25 2019-09-25 Device for positioning the samples to be examined

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019006722.3A DE102019006722B3 (en) 2019-09-25 2019-09-25 Device for positioning the samples to be examined

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DE102019006722B3 true DE102019006722B3 (en) 2020-08-13

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4797261A (en) * 1987-11-03 1989-01-10 Gatan Inc. Multiple specimen cryotransfer holder for electron microscopes
US20130014528A1 (en) * 2010-07-28 2013-01-17 E.A. Fischione, Inc. Cryogenic specimen holder
EP3032564A1 (en) * 2014-12-11 2016-06-15 FEI Company Improved cryogenic specimen holder for a charged particle microscope
US20180330915A1 (en) * 2015-05-13 2018-11-15 Protochips, Inc. Method for enabling modular part replacement within an electron microscope sample holder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4797261A (en) * 1987-11-03 1989-01-10 Gatan Inc. Multiple specimen cryotransfer holder for electron microscopes
US20130014528A1 (en) * 2010-07-28 2013-01-17 E.A. Fischione, Inc. Cryogenic specimen holder
EP3032564A1 (en) * 2014-12-11 2016-06-15 FEI Company Improved cryogenic specimen holder for a charged particle microscope
US20180330915A1 (en) * 2015-05-13 2018-11-15 Protochips, Inc. Method for enabling modular part replacement within an electron microscope sample holder

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