Difference between revisions of "ISI"

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= References =
 
= References =

Revision as of 23:50, 15 July 2026

Recreation of the ISI Logo

ISI (international Scientific Instruments) was founded in 1972 and was a reseller of Scanning Electron Microscopes from the united states, who resold machines built by Akashi-Seisakusho, Ltd of Tokyo Japan. Their headquarters was located in Santa Clara California, United States of Amerika.

The involvement of ISI in the design of machines by Akashi is unknown to the museum at time of writing. It is likely they influenced the designs Akashi created.

List of Models

MSM-2
ISI - MSM-2 - from 026D0056.png
General
Year
Successor [[]]
Magnification Range 30x - 40kx[1]
Magnification Gauge Type
Specemin Chamber Pressure
Power Consumption 1 kVA[1]
System Weight 90 kg total, (Column 26 kg)[1]
Electrion Source
Accelerator Type Self Biased Triode Gun
Cathode Type Tungsten Hairpin
Accelerating Voltage 15kV [1]
Stability
Cathode Heating Methode
Alignment Methode
Condensor
Number of Condensor Lenses 2[1]
Current Stability
Stigmator
Aperture
Condensor Alignment
Lens Type
Stage
Stage Type Non Eucentric
Specimen Loading
Sample Holder Type
X, Y Travel Range
Z Travel Range
Tilt Range 45° Fixed
Rotation Range
Drive Mechanism unkown
Objective Lens
Working Distance
Spherical Error
Current Stability
Stigmator dual quadropole
Deflection Type double electromagnetic
Point Resolution 30nm [1]
Lens Type Electromagnetic


Super-I
ISI - Super-I - from range.png
General
Year 1974[2]
Successor Super Mini-SEM I
Magnification Range 30x - 160kx[3]
Magnification Gauge Type
Specemin Chamber Pressure
Power Consumption
System Weight
Electrion Source
Accelerator Type Self Biased Triode Gun
Cathode Type Tungsten Hairpin
Accelerating Voltage 2, 15, 25kV[3]
Stability
Cathode Heating Methode
Alignment Methode
Condensor
Number of Condensor Lenses 2
Current Stability
Stigmator
Aperture
Condensor Alignment
Lens Type
Stage
Stage Type Non Eucentric
Specimen Loading
Sample Holder Type
X, Y Travel Range
Z Travel Range
Tilt Range
Rotation Range
Drive Mechanism Micrometer Screw (Hand Operated)
Objective Lens
Working Distance
Spherical Error
Current Stability
Stigmator dual quadropole
Deflection Type double electromagnetic
Point Resolution 7nm (10nm Guaranteed) [3]
Lens Type Electromagnetic


Super Mini-SEM I
[[File:|200px|link=Super Mini-SEM I]]
General
Year
Successor [[]]
Magnification Range 30x - 160kx[4]
Magnification Gauge Type
Specemin Chamber Pressure
Power Consumption
System Weight
Electrion Source
Accelerator Type Self Biased Triode Gun
Cathode Type Tungsten Hairpin
Accelerating Voltage 2, 10, 25kV, 2, 15, 25kV, 10, 15, 25kV[4]
Stability
Cathode Heating Methode
Alignment Methode
Condensor
Number of Condensor Lenses 2
Current Stability
Stigmator
Aperture
Condensor Alignment
Lens Type
Stage
Stage Type Non Eucentric
Specimen Loading
Sample Holder Type
X, Y Travel Range
Z Travel Range
Tilt Range
Rotation Range
Drive Mechanism Micrometer Screw (Hand Operated)
Objective Lens
Working Distance
Spherical Error
Current Stability
Stigmator dual quadropole
Deflection Type double electromagnetic
Point Resolution 10nm[4]
Lens Type Electromagnetic


Super-II
ISI - Super-II - from Brochure.png
General
Year
Successor Super Mini-SEM II
Magnification Range 10x - 200kx[2] / 10x - 160kx[3]
Magnification Gauge Type
Specemin Chamber Pressure
Power Consumption
System Weight
Electrion Source
Accelerator Type Self Biased Triode Gun
Cathode Type Tungsten Hairpin
Accelerating Voltage 2, 5, 10, 15, 25kV[2][3]
Stability
Cathode Heating Methode
Alignment Methode
Condensor
Number of Condensor Lenses 2
Current Stability
Stigmator
Aperture
Condensor Alignment
Lens Type
Stage
Stage Type Non Eucentric
Specimen Loading
Sample Holder Type
X, Y Travel Range
Z Travel Range
Tilt Range
Rotation Range
Drive Mechanism Micrometer Screw (Hand Operated)
Objective Lens
Working Distance
Spherical Error
Current Stability
Stigmator dual quadropole
Deflection Type double electromagnetic
Point Resolution 7nm[2]
Lens Type Electromagnetic


Super Mini-SEM II
ISI - Super Mini-SEM II - from N26D0054.png
General
Year
Successor [[]]
Magnification Range 30x - 160kx[4]
Magnification Gauge Type
Specemin Chamber Pressure
Power Consumption
System Weight
Electrion Source
Accelerator Type Self Biased Triode Gun
Cathode Type Tungsten Hairpin
Accelerating Voltage 10, 15, 25kV, 2, 10, 25kV, 2, 15, 25kV, [4]
Stability
Cathode Heating Methode
Alignment Methode
Condensor
Number of Condensor Lenses 2
Current Stability
Stigmator
Aperture
Condensor Alignment
Lens Type
Stage
Stage Type Non Eucentric
Specimen Loading
Sample Holder Type
X, Y Travel Range
Z Travel Range
Tilt Range
Rotation Range
Drive Mechanism Micrometer Screw (Hand Operated)
Objective Lens
Working Distance
Spherical Error
Current Stability
Stigmator dual quadropole
Deflection Type double electromagnetic
Point Resolution 7nm [4]
Lens Type Electromagnetic


Super-III / SMSM-III
ISI - Super-III - from Range.png
General
Year
Successor [[]]
Magnification Range 10x - 160kx[3][5]
Magnification Gauge Type
Specemin Chamber Pressure
Power Consumption
System Weight
Electrion Source
Accelerator Type Self Biased Triode Gun
Cathode Type Tungsten Hairpin / LaB₆[5]
Accelerating Voltage 2, 5, 10, 15, 25kV[3][5]
Stability
Cathode Heating Methode
Alignment Methode
Condensor
Number of Condensor Lenses 2
Current Stability
Stigmator
Aperture
Condensor Alignment
Lens Type
Stage
Stage Type Non Eucentric
Specimen Loading
Sample Holder Type
X, Y Travel Range
Z Travel Range
Tilt Range
Rotation Range
Drive Mechanism Micrometer Screw (Hand Operated)
Objective Lens
Working Distance
Spherical Error
Current Stability
Stigmator dual quadropole
Deflection Type double electromagnetic
Point Resolution 7 nm[5] / 6 nm (LaB₆) [3][5]
Lens Type Electromagnetic


Super-IIIA
ISI - Super-IIIA - from Brochure.png
General
Year
Successor [[]]
Magnification Range 10x - 200kx[2]
Magnification Gauge Type
Specemin Chamber Pressure
Power Consumption
System Weight
Electrion Source
Accelerator Type Self Biased Triode Gun
Cathode Type Tungsten Hairpin
Accelerating Voltage 2, 5, 10, 15, 25kV[2]
Stability
Cathode Heating Methode
Alignment Methode
Condensor
Number of Condensor Lenses 2
Current Stability
Stigmator
Aperture
Condensor Alignment
Lens Type
Stage
Stage Type Non Eucentric
Specimen Loading
Sample Holder Type
X, Y Travel Range
Z Travel Range
Tilt Range
Rotation Range
Drive Mechanism Micrometer Screw (Hand Operated)
Objective Lens
Working Distance
Spherical Error
Current Stability
Stigmator dual quadropole
Deflection Type double electromagnetic
Point Resolution 7nm[2]
Lens Type Electromagnetic


Model-7
ISI - Model 7 - From Brochure.png
General
Year
Successor [[]]
Magnification Range 30x - 120kx[2]
Magnification Gauge Type
Specemin Chamber Pressure
Power Consumption
System Weight
Electrion Source
Accelerator Type Self Biased Triode Gun
Cathode Type Tungsten Hairpin
Accelerating Voltage 2, 15kV[2]
Stability
Cathode Heating Methode
Alignment Methode
Condensor
Number of Condensor Lenses 2
Current Stability
Stigmator
Aperture
Condensor Alignment
Lens Type
Stage
Stage Type Non Eucentric
Specimen Loading
Sample Holder Type
X, Y Travel Range
Z Travel Range
Tilt Range
Rotation Range
Drive Mechanism Micrometer Screw (Hand Operated)
Objective Lens
Working Distance
Spherical Error
Current Stability
Stigmator dual quadropole
Deflection Type double electromagnetic
Point Resolution 10nm[2]
Lens Type Electromagnetic


MRS "Mini-Rapid Scan"
[[File:|200px|link=MRS "Mini-Rapid Scan"]]
General
Year
Successor TV Mini-SEM
Magnification Range 50x - 12kx [6]
Magnification Gauge Type
Specemin Chamber Pressure
Power Consumption 1 kVA[6]
System Weight
Electrion Source
Accelerator Type Self Biased Triode Gun
Cathode Type Tungsten Hairpin
Accelerating Voltage 8kV[6]
Stability
Cathode Heating Methode
Alignment Methode
Condensor
Number of Condensor Lenses
Current Stability
Stigmator
Aperture
Condensor Alignment
Lens Type Magnetic
Stage
Stage Type
Specimen Loading
Sample Holder Type
X, Y Travel Range
Z Travel Range
Tilt Range 0 to 60°[6]
Rotation Range none
Drive Mechanism
Objective Lens
Working Distance
Spherical Error
Current Stability
Stigmator
Deflection Type
Point Resolution <75nm[6]
Lens Type Electromagnetic


Mini-SEM
ISI - Mini-SEM - from brochure.png
General
Year
Successor [[]]
Magnification Range 30x - 80kx[3]
Magnification Gauge Type
Specemin Chamber Pressure
Power Consumption
System Weight
Electrion Source
Accelerator Type Self Biased Triode Gun
Cathode Type Tungsten Hairpin
Accelerating Voltage 15 kV[3]
Stability
Cathode Heating Methode
Alignment Methode
Condensor
Number of Condensor Lenses 2
Current Stability
Stigmator
Aperture
Condensor Alignment
Lens Type
Stage
Stage Type Non Eucentric
Specimen Loading
Sample Holder Type
X, Y Travel Range
Z Travel Range
Tilt Range
Rotation Range
Drive Mechanism Micrometer Screw (Hand Operated)
Objective Lens
Working Distance
Spherical Error
Current Stability
Stigmator dual quadropole
Deflection Type double electromagnetic
Point Resolution 20nm [3]
Lens Type Electromagnetic


TV Mini-SEM
ISI - TV Mini-SEM - from ISI Range.png
General
Year 1975
Successor [[]]
Magnification Range 20x - 20kx[3]
Magnification Gauge Type Step Switch markings
Specemin Chamber Pressure <5e-5 mBar (measured)
Power Consumption 1 kVA
System Weight 82 kg total (column 26 kg)
Electrion Source
Accelerator Type Self Biased Triode Gun
Cathode Type Tungsten Hairpin
Accelerating Voltage 10kV[3]
Stability
Cathode Heating Methode DC
Alignment Methode XY Shift (Mechanical)
Condensor
Number of Condensor Lenses 2
Current Stability
Stigmator none
Aperture
Condensor Alignment none
Lens Type Magnetic
Stage
Stage Type Non Eucentric
Specimen Loading Pull out Stage
Sample Holder Type 15mm Cylinder
X, Y Travel Range +-7.5mm
Z Travel Range none
Tilt Range -30° to +60°
Rotation Range none
Drive Mechanism Micrometer Screw (Hand Operated)
Objective Lens
Working Distance
Spherical Error
Current Stability
Stigmator dual quadropole
Deflection Type double electromagnetic
Point Resolution <50nm[3]
Lens Type Electromagnetic


ISI-60
ISI - ISI-60 - from brochure.png
General
Year
Successor [[]]
Magnification Range 10x - 200kx[2]
Magnification Gauge Type
Specemin Chamber Pressure
Power Consumption
System Weight
Electrion Source
Accelerator Type Self Biased Triode Gun
Cathode Type Tungsten Hairpin
Accelerating Voltage 2kv - 30kV[2]
Stability
Cathode Heating Methode
Alignment Methode
Condensor
Number of Condensor Lenses 2
Current Stability
Stigmator
Aperture
Condensor Alignment
Lens Type
Stage
Stage Type Non Eucentric
Specimen Loading
Sample Holder Type
X, Y Travel Range
Z Travel Range
Tilt Range
Rotation Range
Drive Mechanism Micrometer Screw (Hand Operated)
Objective Lens
Working Distance
Spherical Error
Current Stability
Stigmator dual quadropole
Deflection Type double electromagnetic
Point Resolution 6nm[2]
Lens Type Electromagnetic


System-100
ISI - System-100 - from brochure.png
General
Year
Successor [[]]
Magnification Range 10x - 600kx[2]
Magnification Gauge Type
Specemin Chamber Pressure
Power Consumption
System Weight
Electrion Source
Accelerator Type Self Biased Triode Gun
Cathode Type Tungsten Hairpin
Accelerating Voltage 0kv - 40kV[2]
Stability
Cathode Heating Methode
Alignment Methode
Condensor
Number of Condensor Lenses 2
Current Stability
Stigmator
Aperture
Condensor Alignment
Lens Type
Stage
Stage Type Non Eucentric
Specimen Loading
Sample Holder Type
X, Y Travel Range
Z Travel Range
Tilt Range
Rotation Range
Drive Mechanism Micrometer Screw (Hand Operated)
Objective Lens
Working Distance
Spherical Error
Current Stability
Stigmator dual quadropole
Deflection Type double electromagnetic
Point Resolution 6nm[2]
Lens Type Electromagnetic


List of Models

Note: This list is deprecated and will be eventually removed once all entries can be updated with manufacturer pictures and information, as it becomes available to the museum.

For a full list of Models created by ISI, view List of ISI Models, a version without images is available below. The full list of Electron Microscope models created by ISI including overview Pictures (where available).

The full list of Electron Microscope models created by ISI including overview Pictures (where available).

Model Year Gun KV Min KV Max Resolution [nm]
SR-50
CL-6
DS-130
ISI-40
ISI-60 1979
ISI-100 1977 LaB6 10 nm
SS-40
SS-60
M-7 Tungsten Hairpin
SMS-1 1974 25 KV 10 nm
SMS-2 1975 25 KV 10 nm
SMS-3A 1980 Tungsten Hairpin 30 KV 7 nm
SX-30
SX-40 30 KV 6 nm
SX-60
WB-6
TV Mini SEM / MRS-2-2 1976 Tungsten Hairpin 10KV 10KV 50 nm
MSM-2 1973 Tungsten Hairpin 30 nm

References