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Material Solutions Center, Tohoku University(MaSC)

Shared equipment

Shared equipment

Shared equipment

Scanning Electron Microscope System

Scanning Electron Microscope System
JSM-7800F

Equipment Overview (Purpose)

The sample surface is scanned with a narrowly focused electron beam, and the signals generated from the sample (secondary electrons, reflected electrons, and X-rays) are used to obtain information on the sample surface shape, elemental distribution, and crystal orientation.

Main Features and Applications

【Features】

  • The super hybrid lens irradiation system enables high resolution observation, low acceleration observation, and observation of magnetic materials.
  • Using a field emission electron gun and an opening angle control lens, a large current can be irradiated with a small electron beam diameter, enabling timely EDS and EBSD analyses.
  • A cross-section polisher can be installed in the same area for processing of observation samples.

【Applications】

  • Imaging of surface topography (e.g., vapor deposit-free, high-resolution observation of insulation samples, observation of the top surface of samples at low acceleration voltages)
  • Imaging of elemental distribution
  • Imaging of crystal orientation distribution
  • Observation without exposure to atmospheric conditions (e.g., alkali metals, lithium-ion batteries, highly reactive samples with hygroscopicity)

Main Specifications

Resolution 0.8nm(15kV), 1.2nm(1kV),
3.0nm(15kV, WD10nm, 5nA)
Types of Images Secondary electron image, reflection electron image
Acceleration Voltage 0.01kV~30kV
Sample reflection current PA~500nA
Sample reflection current ×10~1,000,000
Electron gun Electron gun
In-lens Schottky field emission type
Tilt angle
Opening Angle Control Lens Built-in
Objective Lenses Super Hybrid Lens
Objective Aperture 4 steps, X, Y fine adjustment function
Automatic Functions Focus, fault correction, brightness, contrast
Recipe Program Standard observation conditions, user observation conditions
Sample Stage Eucentric method
X 70mm
Y 50mm
WD(Z) 2mm~40㎜
Magnification ‘-5~+70°
Rotation angle 360°
Number of motor drive axes axes
Dimensions of Sample Holder 12.5 mm dia. x 10 mm H,
32 mm dia. x 20 mm H
Sample Exchange Sample exchange chamber type 2 (100mm dia. x 40mm H)

Available Optional Features & Option Purpose

Available Optional Features Option Purpose
Available Optional Features:Energy Dispersive X-ray Spectrometer (EDS) Option Purpose:Elemental distribution imaging
Available Optional Features:Crystal Orientation Analyzer (EBSD) Option Purpose:Crystal orientation analysis
Available Optional Features:Reflected electron detector (BED) Option Purpose:Simple elemental distribution imaging, grain observation
Available Optional Features:Upward secondary electron detector(USD) Option Purpose:Secondary electron imaging with high resolution observation
Available Optional Features:Upward reflected electron detector Option Purpose:Reflection electron imaging in high-resolution observation
Available Optional Features:Stage Navigation System (SNS) Option Purpose:Displays position information of observation locations

Equipment Photo

Click on the photo to enlarge.

  • 電界放出型走査電子顕微鏡システム(FE-SEM) Overall view of the equipment
  • 電界放出型走査電子顕微鏡システム(FE-SEM) Atmospheric non-exposure equipment

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