Siemens

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The Siemens Logo as seen in 1971

The Siemens Corperation has, throughout the years produced many things, among them was the very First Electron Microsocpe. The history of the Electron Microscope started with Siemenes and Ernst Ruska, together with his research team, they created the very first Electron Microscopes.

Timeline

<itimeline>

1939-01-01/1949-01-01|Universal|Übermikroskop 1949-01-01/1955-01-01|Universal|ÜM100 1954-01-01/1961-01-01|Universal|Elmiskop I 1961-01-01/1971-01-01|Universal|Elmiskop IA 1968-01-01/1971-01-01|Universal|Elmiskop 101 1971-01-01/1978-01-01|Universal|Elmiskop 102 1977-01-01/1978-01-01|Universal|Elmiskop CT150

1961-01-01/1971-01-01|EPMA|Elmisonde

1977-01-01/1978-01-01|STEM|Elmiskop ST100F

1949-01-01/1955-01-01|Budget|ÜM60 1955-01-01/1956-01-01|Budget|Elmiskop II 1956-01-01/1971-01-01|Budget|Elmiskop 51

1938-01-01|Experimental|Prototyp 1 1938-05-01|Experimental|Prototyp 2 1954-01-01|Experimental|Elmiskop II Prototype 1956-01-01|Experimental|Elmiskop 51 Prototype </itimeline>


Models

Siemens, as the company responsible for the invention of the Electron Microscope has produced many models throughout the years, also selling a rebadged version of the Etec Autoscan which was sold under the Siemens name outside the United States. Most of their models however where of the Transmission kind, mostly due to Ernst Ruskas Prescience.

Transmission Electron Microscops







General
Year 1938
Successor Prototyp 2
Electron Source
Accelerator Type Kanalstrahlrohr
Acellerating Voltage 75 KV
Cathode Gas Discharge
Condenser
Lens Type Electromagnetic
Stage
Holder Type Cartridge, Top Entery
Objective
Lens Type Electromagnetic
Projective Lens
Lens Type Electromagnetic
No. of Lenses 1









General
Year 1938
Successor Übermikroskop
Electron Source
Accelerator Type Kanalstrahlrohr
Acellerating Voltage 75 KV
Cathode Gas Discharge
Condenser
Lens Type Electromagnetic
Stage
Holder Type Cartridge, Top Entery
Objective
Lens Type Electromagnetic
Resolution 100a
Projective Lens
Lens Type Electromagnetic
No. of Lenses 1









General
Year 1939
Successor ÜM100
Electron Source
Accelerator Type Kanalstrahlrohr
Acellerating Voltage 75 KV
Cathode Gas Discharge
Condenser
Lens Type Electromagnetic
Stage
Holder Type Cartridge, Top Entery
Objective
Lens Type Electromagnetic
Resolution 100a
Projective Lens
Lens Type Electromagnetic
No. of Lenses 1









General
Year 1949
Successor Elmiskop I
Chamber Pressure 1·10⁻⁴ Torr
Electron Source
Accelerator Type Self Biased Triode
Acellerating Voltage 40 KV, 60 KV, 80 KV, 100 KV
Cathode Tungsten Hairpin
Condenser
Lens Type Electromagnetic
Stage
Holder Type Cartridge, Top Entery
Objective
Lens Type Electromagnetic
Projective Lens
Lens Type Electromagnetic
No. of Lenses 1









General
Year 1950
Successor Elmiskop II
Electron Source
Accelerator Type Self Biased Triode
Acellerating Voltage 40, 50, 60 KV
Cathode Tungsten Hairpin
Condenser
Lens Type Electromagnetic
Stage
Holder Type Cartridge, Top Entery
Objective
Lens Type Electromagnetic
Projective Lens
Lens Type Electromagnetic
No. of Lenses 1









General
Year 1954
Successor Elmiskop IA
Mag. Range 200x - 200Kx
Mag. Gauge Galvanometer
Chamber Pressure 1·10⁻⁴ Torr
Power Requirment 3.3 KVA
System Weight 1200 Kg
Electron Source
Accelerator Type Self Biased Triode
Acellerating Voltage 40, 60, 80, 100 KV
Stability 2·10⁻⁵⁄ₘᵢₙ
Cathode Tungsten Hairpin
Cathode Heating AC
Condenser
Lens Type Electromagnetic
Nu. of Lenses 2
Stability 1·10⁻³⁄ₘᵢₙ
Stigmator Moveing Iron
Spot Size 2µm
Stage
Holder Type Cartridge, Top Entery
Objective
Lens Type Electromagnetic
Focal Length 2.8mm
Stability 1·10⁻⁵⁄ₘᵢₙ
Range 2.8mm to 7.4mm
Spherical Error 3.3 mm
Resolution 5Å
Projective Lens
Lens Type Electromagnetic
No. of Lenses 2
Stability 1·10⁻⁴⁄ₘᵢₙ
Configuration 4 Polpiece Revolver
Pol Piece Mag. 12.5:1, 31.2:1, 62.5:1, 125:1, 250:1








General
Year 1954
Successor Elmiskop II
Electron Source
Accelerator Type Self Biased Steigerwald Triode
Acellerating Voltage 40, 50, 60 KV
Cathode Tungsten Hairpin
Stage
Holder Type Cartridge, Top Entery
Objective
Lens Type Electromagnetic
Stability 3·10⁻⁵⁄ₘᵢₙ
Resolution 25Å
Projective Lens
Lens Type Electromagnetic
No. of Lenses 1
Configuration 4 Polpiece Revolver











General
Year 1955
Successor Elmiskop 51
Mag. Range 295x, 1925x, 8Kx, 17Kx, 35Kx
Chamber Pressure 1·10⁻⁴Torr
Power Requirment 2 KVA
System Weight 700 Kg
Electron Source
Accelerator Type Self Biased Steigerwald Triode
Acellerating Voltage 50 KV
Stability 5·10⁻⁵⁄ₘᵢₙ
Cathode Tungsten Hairpin
Condenser
Stigmator Moveing Iron
Stage
Holder Type Cartridge, Top Entery
Objective
Lens Type Electromagnetic
Focal Length 1.8mm
Stability 3·10⁻⁵⁄ₘᵢₙ
Range 2.8mm to 7.4mm
Resolution 15Å
Projective Lens
Lens Type Electromagnetic
No. of Lenses 1
Configuration 4 Polpiece Revolver
Pol Piece Mag. 16.9:1, 69.9:1, 146:1, 300:1








General
Year 1956
Electron Source
Accelerator Type Self Biased Steigerwald Triode
Acellerating Voltage 50 KV
Stability 5·10⁻⁵⁄ₘᵢₙ
Cathode Tungsten Hairpin
Condenser
Stigmator Moveing Iron
Objective
Lens Type Permanent Magnet
Resolution 25-50Å
Projective Lens
Lens Type Permanent Magnet
No. of Lenses 1
Configuration 4 Polpiece Revolver









General
Year 1961
Successor Elmiskop 101
Mag. Range 200x - 200Kx
Mag. Gauge Galvanometer
Chamber Pressure 1·10⁻⁴Torr
Power Requirment 3.3 KVA
System Weight 1200 Kg
Electron Source
Accelerator Type Self Biased Triode
Acellerating Voltage 40, 60, 80, 100 KV
Stability 2·10⁻⁵⁄ₘᵢₙ
Cathode Tungsten Hairpin
Cathode Heating AC
Condenser
Lens Type Electromagnetic
Nu. of Lenses 2
Stability 1·10⁻³⁄ₘᵢₙ
Stigmator Moveing Iron
Spot Size 2µm
Stage
Holder Type Cartridge, Top Entery
Objective
Lens Type Electromagnetic
Focal Length 2.8mm
Stability 1·10⁻⁵⁄ₘᵢₙ
Range 2.8mm to 7.4mm
Spherical Error 3.3 mm
Resolution 5Å
Projective Lens
Lens Type Electromagnetic
No. of Lenses 2
Stability 1·10⁻⁴⁄ₘᵢₙ
Configuration 4 Polpiece Revolver
Pol Piece Mag. 12.5:1, 31.2:1, 62.5:1, 125:1, 250:1









General
Year 1968
Successor Elmiskop 102
Mag. Range 285x - 260Kx
Mag. Gauge Galvanometer
Electron Source
Accelerator Type Self Biased Triode
Acellerating Voltage 40, 60, 80, 100, 125 KV
Cathode Tungsten Hairpin
Condenser
Lens Type Electromagnetic
Nu. of Lenses 2
Stigmator Electromagnetic Octopol
Stage
Holder Type Cartridge, Top Entery
Objective
Lens Type Electromagnetic
Projective Lens
Lens Type Electromagnetic
No. of Lenses 2
Configuration 2 Polpiece Revolver









General
Year 1972
Successor Elmiskop 103
Mag. Range 200x - 500Kx
Mag. Gauge Digital
Chamber Pressure 5·10⁻⁶ Torr
Power Requirment 4 KVA
System Weight Kg
Electron Source
Accelerator Type Self Biased Triode
Acellerating Voltage 20, 40, 60, 80, 100, 125 KV
Stability 2·10⁻⁶⁄ₘᵢₙ
Cathode Tungsten Hairpin, Tungsten Lancet
Cathode Heating DC
Condenser
Lens Type Electromagnetic
Nu. of Lenses 2
Stability 5·10⁻⁶⁄ₘᵢₙ
Stigmator Electromagnetic Octopol
Spot Size 1.7µm / 0.5 µm
Stage
Holder Type Cartridge, Top Entery
Objective
Lens Type Electromagnetic
Focal Length 2.7mm
Stability < 2·10⁻⁶⁄ₘᵢₙ
Range 1.6mm (20KV) to 7mm
Spherical Error 2.9 mm
Chromatic Error 2.1 mm
Resolution 3Å
Projective Lens
Lens Type Electromagnetic
No. of Lenses 3
Stability <5·10⁻⁶⁄ₘᵢₙ
Configuration Single Polpiece








General
Year 1977
Mag. Range 500x - 1200Kx
Mag. Gauge Digital
Chamber Pressure 5·10⁻⁶ Torr
Power Requirment 5.5kVA
System Weight 1800Kg
Electron Source
Accelerator Type Self Biased Triode
Acellerating Voltage 20, 40, 60, 80, 100, 125, 150 KV
Stability 2·10⁻⁶⁄ₘᵢₙ
Emmision Current 100nA → 100µA
Cathode Tungsten Hairpin, Tungsten Lancet
Cathode Heating DC
Condenser
Lens Type Electromagnetic
Nu. of Lenses 2
Stability <5·10⁻⁶⁄ₘᵢₙ
Stigmator Electromagnetic Octopol
Spot Size 500 nm / 200 nm
Stage
Holder Type Side Entry
Objective
Lens Type Electromagnetic
Focal Length 1.7mm
Stability < 2·10⁻⁷⁄ₘᵢₙ
Spherical Error 1.4 mm
Chromatic Error 1.3 mm
Resolution 3Å
Projective Lens
Lens Type Electromagnetic
No. of Lenses 3
Stability <5·10⁻⁶⁄ₘᵢₙ
Configuration Single Polpiece




General
Year 1977
Mag. Gauge Digital
Electron Source
Accelerator Type Self Biased Triode
Acellerating Voltage 20, 40, 60, 80, 100 KV ?



~

Scanning Transmission Electron Microscops

Elmiskop ST100F
Siemens - Elmiskop ST100F Overview - annotated.jpg
General
Year 1977
Successor none
Magnification Range 50x - 10e7X
Magnification Gauge Type
Specemin Chamber Pressure 10e-7 mBar
Power Consumption
System Weight
Electrion Source
Accelerator Type Crewe FE Electron Gun
Cathode Type Cold Field Emmision
Accelerating Voltage 20, 40, 60, 80, 100 KV, (10 - 30 KV)
Stability 2*10e-6
Cathode Heating Methode N/A
Alignment Methode
Condensor
Number of Condensor Lenses 1
Current Stability 2*10e-6
Stigmator
Minimum Spot Size Diameter
Condensor Alignment
Lens Type Crewe Electrostatic
Stage
Holder Type
X, Y Travel Range +- 1 mm
Objective Lens
Focal Length 1.8 mm
Adjustment Range
Spherical Error 1.3 mm
Chromatic Error 1.3 mm
Current Stability 1 * 10e-6
Stigmator Electromagnetic
Alignment Aids
Point Resolution 2 Å
Lens Type Electromagnetic
Projective Lens
Number of Projective Lens
Current Stability
Polpeace Configuration
Avalible Polpeace Magnifications
Alignment
Lens Type


X-Ray Micro Analyzers

Elmisonde
Siemens - Elmisonde - Overview from Brochure.jpg
General
Year 1961
Successor none
Magnification Range
Magnification Gauge Type
Specemin Chamber Pressure
Power Consumption
System Weight
Electrion Source
Accelerator Type Single Stage Electron Gun
Cathode Type Tungsten Hairpin
Accelerating Voltage 40, 60, 80, 100 KV
Stability 2*10⁻⁵/min
Cathode Heating Methode AC
Alignment Methode X, Y, Mechanical
Condensor
Number of Condensor Lenses 2
Current Stability
Stigmator Moveing Iron, Mechanical
Minimum Spot Size Diameter
Condensor Alignment X, Y, and Tilt, Mechanical
Lens Type Electromagnetic
Stage
Holder Type Cartridge, Top Entry
X, Y Travel Range ± 0.8 mm
Objective Lens
Focal Length
Adjustment Range
Spherical Error
Current Stability
Stigmator Moveing Iron, Mechanical
Alignment Aids
Point Resolution
Lens Type Electromagnetic
Projective Lens
Number of Projective Lens 1
Current Stability
Polpeace Configuration 4 Position Revolver
Avalible Polpeace Magnifications
Alignment
Lens Type Electromagnetic

Scanning Electron Microscops

Autoscan
Autoscan Column.jpg
General
Year 1972
Successor none
Magnification Range 20 - 550Kx
Magnification Gauge Type Analog, (Digital)
Specemin Chamber Pressure 2 * 10-4 Torr
Power Consumption 3 KVA
System Weight
Electrion Source
Accelerator Type Single Stage Electron Gun
Cathode Type Tungsten Hairpin / LaB6 / Field Emission?
Accelerating Voltage 2.5, 5, 10, 20, 30, (50) KV
Stability
Cathode Heating Methode HF
Alignment Methode X, Y Mechanical
Condensor
Number of Condensor Lenses 3
Current Stability
Stigmator none
Minimum Spot Size Diameter
Condensor Alignment none, prealigned
Lens Type 3 gap Common Coil Electromagnetic
Stage
Holder Type
X, Y Travel Range +- 12.5 mm
Z Travel Range 25 mm
Objective Lens
Focal Length
Adjustment Range
Spherical Error
Current Stability
Stigmator Dual Quadropol Electromagnetic
Alignment Aids
Point Resolution 7 nm
Lens Type Electromagnetic


Documentation

Full list of all documents related to the Siemens Electron Microscopes.

Categorie Entries

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