DE1064168B - Device for generating and shaping a charge carrier beam - Google Patents
Device for generating and shaping a charge carrier beamInfo
- Publication number
- DE1064168B DE1064168B DEZ6718A DEZ0006718A DE1064168B DE 1064168 B DE1064168 B DE 1064168B DE Z6718 A DEZ6718 A DE Z6718A DE Z0006718 A DEZ0006718 A DE Z0006718A DE 1064168 B DE1064168 B DE 1064168B
- Authority
- DE
- Germany
- Prior art keywords
- charge carrier
- lens
- cylinder
- carrier beam
- lenses
- 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.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/13—Ophthalmic microscopes
- A61B3/135—Slit-lamp microscopes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/16—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for measuring intraocular pressure, e.g. tonometers
-
- 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
- H01J37/30—Electron-beam or ion-beam tubes for localised treatment of objects
- H01J37/3002—Details
- H01J37/3007—Electron or ion-optical systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S164/00—Metal founding
- Y10S164/05—Electron beam
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Electron Beam Exposure (AREA)
- Laser Beam Processing (AREA)
Description
DEUTSCHESGERMAN
Bei der Materialbearbeitung mit Ladungsträger-Strahlen besteht die Forderung, daß die Flächenintensität des auf das zu bearbeitende Objekt auf treffenden Ladungsträgerstrahles möglichst groß sein soll. Bei den bisher bekannten Einrichtungen wird zur Fokussierung des Ladungsträgerstrahles eine rotationssymmetrische Linse verwendet. Durch deren Linsenfehlerj vorzugsweise durch den Öffnungsfehler, wird jedoch die Erreichung der geforderten großen Flächenintensität verhindert.In the case of material processing with charge carrier beams, there is a requirement that the surface intensity of the charge carrier beam striking the object to be processed should be as large as possible. In the previously known devices, a rotationally symmetrical lens is used to focus the charge carrier beam. Their lens error j, preferably due to the aperture error, prevents the required large surface intensity from being achieved.
Die vorliegende Erfindung betrifft eine Einrichtung zur Erzeugung und Formung eines zur Materialbearbeitung dienenden intensitätsreichen Ladungsträgerstrahles mit in Strahlrichtung gesehen hinter der Anode liegenden Linse. Der durch diese neue Einrichtung erzeugte Ladungsträgerstrahl hat eine sehr große Flächenintensität, wobei diese Intensität an den Rändern des Strahlquerschnitts sehr steil abfällt. Eine solche Intensitätsverteilung ist bei der Materialbearbeitung mit Ladungsträgerstrahlen sehr wichtig, da es zur Erzielung eines guten Bearbeitungsergebnisses notwendig ist, daß die Strahlintensität an den Rändern der Bearbeitungsstelle steil abfällt und über den Bearbeitungsquerschnitt eine gewünschte Verteilung aufweist. The present invention relates to a device for producing and shaping a material processing device serving high-intensity charge carrier beam seen in the direction of the beam behind the Anode lying lens. The charge carrier beam generated by this new device has a very large one Area intensity, whereby this intensity drops off very steeply at the edges of the beam cross-section. One Such an intensity distribution is very important when processing materials with charge carrier beams it is necessary to achieve a good machining result that the beam intensity at the edges the processing point drops steeply and has a desired distribution over the processing cross-section.
Die neue Einrichtung zur Erzeugung und Formung eines zur Materialbearbeitung dienenden intensitätsreichen Ladungsträgerstrahles enthält erfindungsgemäß ein einen Ladungsträgerstrahl großer Apertur erzeugendes Strahlerzeugungssystem sowie mindestens eine in an sich bekannter Weise hinsichtlich ihres Öffnungsfehlers korrigierte, zur Strahlfokussierung dienende Zylinderlinse. Mittels dieser neuen Einrichtung gelingt es, eine große emittierende Fläche der Kathode des Strahlerzeugungssystems zu erfassen und die unter großem öffnungswinkel aus diesem System austretenden Ladungsträger einwandfrei zu fokussieren, so daß also in der Fokussierungsebene eine große Flächenintensität erreicht wird. Die Verteilung dieser Intensität über den Strahlquerschnitt hat infolge der Verwendung einer öffnungsfehlerfreien Zylinderlinse die für eine Materialbearbeitung geforderte, nahezu rechteckförmige Gestalt.The new device for the production and shaping of a high-intensity material used for material processing According to the invention, the charge carrier beam contains a charge carrier beam with a large aperture generating beam generating system and at least one in a manner known per se with regard to Cylindrical lens used to focus the beam and corrected for its aperture error. By means of this new The device succeeds in capturing a large emitting area of the cathode of the beam generating system and the load carriers emerging from this system at a large opening angle are perfectly closed focus, so that a large area intensity is thus achieved in the focussing plane. The distribution this intensity over the beam cross-section has due to the use of an opening error-free Cylindrical lens the almost rectangular shape required for material processing.
Es ist vorteilhaft, das Strahlerzeugungssystem mit einer an sich bekannten, linienförmig ausgebildeten Kathode auszurüsten, wobei es notwendig ist, die Richtung der größten Ausdehnung der Kathode auf die Hauptachse der nachfolgenden, zur Strahlfokussierung dienenden Zylinderlinse auszurichten. Durch die Wahl einer solchen Kathode wird erreicht, daß eine größere emittierende Kathodenfläche ausgenutzt werden kann, als dies bei runden Kathoden der Fall ist.It is advantageous for the beam generation system to have a linear design known per se To equip cathode, it is necessary to the direction of greatest expansion of the cathode on align the main axis of the following cylinder lens used for beam focusing. By the choice of such a cathode is achieved in that a larger emitting cathode area is used than is the case with round cathodes.
Es ist möglich, und in manchen Fällen vorteilhaft,It is possible, and in some cases beneficial,
Einrichtung zur Erzeugung und Formung eines LadungsträgerstrahlesDevice for generating and shaping a charge carrier beam
Anmelder:
Fa. Carl Zeiss, Heidenheim/BrenzApplicant:
Carl Zeiss, Heidenheim / Brenz
Dipl.-Ing. Fritz Schleich, Unterkodien (Württ),
ist als Erfinder genannt wordenDipl.-Ing. Fritz Schleich, Subcodes (Württ),
has been named as the inventor
hinter der Anode des Strahlerzeugungssystems eine einfache zur Strahlfokussierung dienende Zylinderlinse anzuordnen. In diesem Fall entsteht in der Fokussierungsebene ein Strichfokus.behind the anode of the beam generation system is a simple cylindrical lens used to focus the beam to arrange. In this case, a line focus is created in the focussing plane.
Für gewisse Arten der Materialbearbeitung, wie zum Bohren runder Löcher, ist jedoch ein Strichfolcus zunächst nicht brauchbar. Es ist deshalb zweckmäßig, für solche Zwecke zwischen Objekt und Linse ein Drehfeld dergestalt einzuschalten, daß der Strichfokus um den Überkreuzungspunkt der langen und kurzen Achse als Zentrum rotiert.However, for certain types of material processing, such as drilling round holes, a stroke folcus is required not usable at first. It is therefore advisable to place an object between the object and the lens for such purposes Turn on the rotating field in such a way that the line focus is around the crossover point of the long and short The axis rotates as the center.
Die beschriebene, zur Strahlfokussierung dienende Zylinderlinse wird vorteilhaft als elektromagnetische Zylinderlinse ausgebildet. In diesem Fall ist man in der Lage, durch Änderung des Spulenstromes die Länge des in der Fokussierungsebene entstehenden Strichfokus bequem zu variieren. Auf diese Weise ist es möglich, den durch die Anwendung des Drehfeldes entstehenden runden Bohrstrahl in gewissen Grenzen zu variieren und damit den Durchmesser der gewünschten Bohrung einzustellen.The cylinder lens described, used for beam focusing, is advantageously an electromagnetic one Cylindrical lens formed. In this case you are able to change the coil current Easy to vary the length of the line focus arising in the focussing plane. That way is it is possible, within certain limits, to use the rotating field to reduce the round drilling beam to vary and thus set the diameter of the desired hole.
Bei der Herstellung von Fräsungen und Profilbohrungen erfordert aber die Verwendung einer Zylinderlinse mit nachgeschaltetem Drehfeld eine verhältnismäßig umständliche Strahlsteuerung. Es ist deshalb für diesen Zweck vorteilhaft, zwei oder mehrere hintereinandergeschaltete Zylinderlinsen zu verwenden, die einen geeigneten Strahl querschnitt erzeugen. Die Hauptachsen dieser Zylinderlinsen stehen dabei jeweils gekreuzt.In the production of millings and profile bores, however, requires the use of a cylindrical lens with a downstream rotating field a relatively cumbersome beam control. It is therefore it is advantageous for this purpose to add two or more cylinder lenses connected in series use that generate a suitable beam cross-section. The main axes of these cylinder lenses are each crossed.
Durch Verwendung mehrerer hintereinander angeordneter Zylinderlinsen gelingt es, auch Strahlen mit sehr hoher Beschleunigungsspannung und großer Apertur mit relativ kleinen Amperewindungszahlen in den einzelnen Bauelementen zu beherrschen. So ergibt sich für die Materialbearbeitung auch bei sehr hohen Intensitäten eine Strahlführung, die technisch leicht zu bewältigen ist.By using several cylindrical lenses arranged one behind the other, it is possible to also use rays very high acceleration voltage and large aperture with relatively small number of ampere turns in to master the individual components. This results in material processing even at very high Intensities a beam guidance that is technically easy to manage.
909 609/359909 609/359
Claims (1)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEZ6718A DE1064168B (en) | 1958-06-20 | 1958-06-20 | Device for generating and shaping a charge carrier beam |
FR797566A FR1227633A (en) | 1958-06-20 | 1959-06-15 | Device for generating and concentrating a beam of electrified particles |
GB20333/59A GB852725A (en) | 1958-06-20 | 1959-06-15 | Improvements relating to an apparatus for producing a beam of charged particles for working material |
CH7471059A CH372116A (en) | 1958-06-20 | 1959-06-19 | Device for generating and shaping a charge carrier beam |
US822000A US3028491A (en) | 1958-06-20 | 1959-06-22 | Apparatus for producing and shaping a beam of charged particles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEZ6718A DE1064168B (en) | 1958-06-20 | 1958-06-20 | Device for generating and shaping a charge carrier beam |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1064168B true DE1064168B (en) | 1959-08-27 |
Family
ID=40433782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEZ6718A Pending DE1064168B (en) | 1958-06-20 | 1958-06-20 | Device for generating and shaping a charge carrier beam |
Country Status (5)
Country | Link |
---|---|
US (1) | US3028491A (en) |
CH (1) | CH372116A (en) |
DE (1) | DE1064168B (en) |
FR (1) | FR1227633A (en) |
GB (1) | GB852725A (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3210171A (en) * | 1960-09-12 | 1965-10-05 | Sylvania Electric Prod | Method of supplying heat of fusion to glass-to-glass seal |
US3340377A (en) * | 1962-07-12 | 1967-09-05 | Jeol Ltd | Method of treating material by a charged beam |
US3191028A (en) * | 1963-04-22 | 1965-06-22 | Albert V Crewe | Scanning electron microscope |
US3482136A (en) * | 1966-04-13 | 1969-12-02 | High Voltage Engineering Corp | Charged particle beam spreader system including three in-line quadrapole magnetic lenses |
US3621327A (en) * | 1969-12-29 | 1971-11-16 | Ford Motor Co | Method of controlling the intensity of an electron beam |
JPS5435078B1 (en) * | 1970-07-30 | 1979-10-31 | ||
DE2164125A1 (en) * | 1971-12-23 | 1973-06-28 | Air Liquide | WORKING CANNON FOR WELDING USING ELECTRON BOMB ELEMENT |
US4736106A (en) * | 1986-10-08 | 1988-04-05 | Michigan State University | Method and apparatus for uniform charged particle irradiation of a surface |
US4767930A (en) * | 1987-03-31 | 1988-08-30 | Siemens Medical Laboratories, Inc. | Method and apparatus for enlarging a charged particle beam |
DE3901980C2 (en) * | 1989-01-24 | 2001-06-28 | Ceos Gmbh | Multipole element and method for producing a multipole element |
EP0660373A3 (en) * | 1993-12-21 | 1996-11-20 | Hughes Aircraft Co | Xenon arc lamp point light source. |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2267752A (en) * | 1938-01-26 | 1941-12-30 | Fides Gmbh | Arrangement for producing filters and ultra filters |
US2793281A (en) * | 1951-01-31 | 1957-05-21 | Zeiss Carl | Drilling by electrons |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB739068A (en) * | 1952-08-09 | 1955-10-26 | Emi Ltd | Improvements in or relating to cathode ray tube arrangements |
US2883569A (en) * | 1956-01-24 | 1959-04-21 | Herman F Kaiser | Magnetic quadrupole focusing system |
US2919381A (en) * | 1956-07-25 | 1959-12-29 | Farrand Optical Co Inc | Electron lens |
US2915662A (en) * | 1956-08-24 | 1959-12-01 | Nat Video Corp | Centering arrangement and method for beams of cathode ray tubes |
-
1958
- 1958-06-20 DE DEZ6718A patent/DE1064168B/en active Pending
-
1959
- 1959-06-15 FR FR797566A patent/FR1227633A/en not_active Expired
- 1959-06-15 GB GB20333/59A patent/GB852725A/en not_active Expired
- 1959-06-19 CH CH7471059A patent/CH372116A/en unknown
- 1959-06-22 US US822000A patent/US3028491A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2267752A (en) * | 1938-01-26 | 1941-12-30 | Fides Gmbh | Arrangement for producing filters and ultra filters |
US2793281A (en) * | 1951-01-31 | 1957-05-21 | Zeiss Carl | Drilling by electrons |
Also Published As
Publication number | Publication date |
---|---|
CH372116A (en) | 1963-09-30 |
US3028491A (en) | 1962-04-03 |
FR1227633A (en) | 1960-08-22 |
GB852725A (en) | 1960-11-02 |
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