Scanning Electron Microscopes (SEM)

How Does a Scanning Electron Microscope Work?

A scanning electron microscope (also commonly abbreviated as SEM) uses beams of electrons to create magnified images of samples, as opposed to beams of light that a traditional microscope uses. SEMs use electrons that are bounced off near the surface region of a sample. Because the wavelength of electrons is notably smaller than that of light, the resolution of SEMs is greatly superior to that of a light microscope.

What Are Scanning Electron Microscopes Used For?

Because the SEM can magnify a sample up to 500,000 times its normal size and determine its chemical makeup, scanning electron microscopes have a wide range of applications. They are used for quality control in both the pharmaceutical and semiconductor industries, sample comparisons in forensics, diagnostics in medical labs, and in research labs to determine the composition of samples treated in different ways.

What Types of Scanning Electron Microscopes Are There?

Scanning electron microscopes have different kinds of signal detectors available that include back-scattered electrons (for imaging), characteristic X-rays (for determining types and amounts of elements present in the sample), transmitted electrons, and cathodoluminescence. Other variations in different scanning electron microscopes include availability of low or high vacuum mode and imaging options for bright field samples and/or dark field samples.

Check out this article "Integrated SEM Workflow Creates Powerful 'Nano-lab' " to see more ways in which SEM can be a valuable tool for your lab.


CompanyJEOL USA, Inc.JEOL USA, Inc.JEOL USA, Inc.JEOL USA, Inc.JEOL USA, Inc.
ItemJIB-PS500i FIB-SEMJAMP-9510F Field Emission Auger MicroprobeJCM-7000 NeoScope Benchtop SEMJSM-IT710 High Resolution Large Chamber SEMJSM-IT810 Ultrahigh Resolution Field Emission SEM Series
Catalog NumberJIB-PS500iJAMP-9510FJCM-7000JSM-IT710JSM-IT810 Series
Price
DescriptionThe all-new JIB-PS500i is a multipurpose FIB-SEM that delivers the synergy of fast sample preparation, SEM imaging and EDS analysis in a single instrument. The flexibility of this new FIB-SEM makes it ideal for both industry and academia.

Key Features
  • Fast High-Quality TEM Sample Preparation

  • The
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The JAMP-9510F offers the highest spatial resolution available in an Auger microprobe: (min. probe diameter of 3nm SEI; 8nm for Auger analysis). Employing a low-aberration condenser lens (in which an electrostatic field and a magnetic field are superposed), combined with a patented "in-lens' ... Read MoreThis 4th generation Neoscope incorporates advanced technology and functions that make it simple for users at any skill level to obtain outstanding SEM images and elemental analysis results in minutes. It is equipped with a large chamber, high and low vacuum modes, secondary and backscatter electron ... Read MoreHigh Resolution Large Chamber SEM

The JSM-IT710HR Field Emission SEM is a compact, versatile Schottky Field Emission SEM that delivers the next level of intelligent technology for high spatial resolution imaging and analysis.

Our unique in-lens field emission gun and advanced electron optics
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The JEOL IT810 Ultrahigh Resolution Field Emission SEM is a revolutionary FE-SEM with the most advanced high-resolution analytical technology available today. Versatility and high spatial resolution meet automation and ease of use with the JSM-IT810 series FE SEM. The JEOL IT810 series offers the ... Read More
TypeInquireAuger microprobeInquireInquireInquire
ResolutionSEM : 0.7 nm (15 kV) ; 1.4 nm (1 kV); 1.0 nm (1 kV, BD mode)
FIB:3 nm (at 30 kV)
3nm(at 25kV, 10pA)InquireHigh Vacuum Mode: 1.0 nm at 20 kV, 3.0 nm at 1.0 kV.
Low Vacuum Mode: 1.8 nm at 15 kV (using Backscattered Electron Detector).
1.6 nm at 1 kV, 1.2nm at 30kV
Specimen SizeInquireUp to 20 mm in diameter (5 mm thick)Inquire200 mm diameter, 75 mm heightInquire
Probe CurrentInquire10-11 to 2×10-7 AInquireFew pA to 300 nAMaximum probe current of 300 nA
ApplicationsInquireEnables precise chemical bonding state analysis and compositional mapping, making it indispensable for researchers and engineers in materials science, nanotechnology, and related fields.?Provides outstanding SEM images and elemental analysis results in minutesHigh spatial resolution imaging and analysisInquire
Detector(s)Secondary electron detector (SED), Upper electron detector (UED), In-lens backscattered electron detector (iBED)Multi-channel detectionBackscattered electron detectorQuadrant BSESemiconductor type BSE detector
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