Some microscopes are purchased for one demanding application. Others become the instrument people walk to every day.
Tescan VEGA™ belongs firmly in the second category.
The first VEGA™ dates back more than 25 years, and the platform has continued to evolve through multiple generations. Today, VEGA™ is designed for routine materials characterization, quality control, failure analysis and research, combining SEM imaging, elemental analysis, low-vacuum capabilities and straightforward sample navigation in one analytical platform.
That everyday versatility may be particularly relevant in countries, where materials-intensive industries including semiconductors, displays and secondary batteries continue to receive substantial R&D investment.
We asked Tescan Product Marketing Manager Tomas Boruvka what more than two decades of Tescan VEGA™ development have taught us, where the instrument makes the most sense today, and what Korean research and industrial laboratories should consider when evaluating their next SEM.
I think the simple answer is that the need VEGA™ was designed to address never disappeared.
Not every SEM task requires the highest possible resolution or the most sophisticated instrument in the laboratory. A very large part of electron microscopy is still about answering practical questions reliably: What is happening on this surface? Where is the defect? What phases or elements are present? Why did this component fail? Has the production process changed the material?
VEGA™ has been around for many years, but that is very different from being outdated. We have continuously evolved the platform while keeping the simplicity customers value. Today, VEGA™ shares the same software environment and operating philosophy as our higher-end SEMs, so users get a modern experience built on decades of experience.
The current VEGA™ combines SEM imaging and elemental analysis in the same Essence™ environment, navigation from very low magnification with Wide Field Optics™, flexible vacuum modes and an analytical platform that can be configured for different applications.
For me, longevity is not simply about whether an instrument can remain switched on for many years. It is about whether it continues to be useful.
We have customers who have used earlier generations of VEGA™ for a long time because the core tasks they bought the microscope for are still there: materials inspection, morphology, fracture analysis, EDS, quality control and research.
One documented example comes from the Brno Transportation Research Center, where a VEGA™ II was used for building-material analysis for around 15 years. The team used SEM, BSE and EDS to examine concrete microstructure, voids, mineralization and crystal growth to better understand material quality and potential failure.
The instrument was replaced around 2020/2021, but its story did not end there. The same VEGA™ II is now at the Faculty of Electrical Engineering and Communication at Brno University of Technology. Today, the microscope itself is approximately 21 years old.
For me, that is what longevity really means. VEGA™ has evolved through several generations, but the fact that an instrument built more than two decades ago can still find a place in a microscopy laboratory says a lot about the fundamentals of the platform.
“Longevity is not simply about how long an instrument runs. It is about how long it continues to be useful.”
Not at all.
It can certainly be a very good first SEM because it is designed to make routine operation straightforward. But there is another use case that is just as important: a laboratory may already have a high-end FE-SEM and still benefit from VEGA™.
A high-end instrument is valuable when the application genuinely requires its capabilities. But using that system for every routine inspection, EDS check or fracture-surface examination may not always be the most efficient use of laboratory capacity.
VEGA™ can take care of a large volume of routine materials characterization, QC and failure-analysis work. That can leave more advanced microscopy systems available for the applications that actually need them.
The current product is specifically designed for routine materials inspection, quality control, failure analysis and research.
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Industrial microscopy is often about getting to a reliable answer efficiently.
You may have a fracture surface, a coating, a powder, a contaminant, an interface or a production component and need to understand both what you are seeing and what it is made of.
VEGA™ brings morphology and elemental information together. With Essence™ EDS, the operator can move from SEM imaging elemental composition information and maps within the same software environment. Wide Field Optics™ also lets you start from a very large overview, down to 2× magnification, and navigate directly to the region you need to investigate.
That is particularly useful with large or irregular industrial samples. We have, for example, a published steel fatigue study in which VEGA™ was used for fracture-surface imaging. Wide Field Optics allowed researchers to work with large fracture surfaces and retain the context of the complete metal component.
For production and QC, that context matters. The person receiving the report may not be an electron microscopist. They need to understand where the defect is and what the analysis tells them about the component.
Materials science is probably the broadest answer because VEGA™ can cover many different sample types.
Metals and alloys are an obvious application: fracture surfaces, inclusions, microstructure, coatings and corrosion. Ceramics, powders and composites are also very natural VEGA™ applications. With low-vacuum capabilities, we can also work with many non-conductive and charging samples.
Then you have industrial quality control and failure analysis, where the combination of SE and BSE imaging with EDS becomes particularly useful.
Semiconductor packaging is another interesting example. We have demonstrated VEGA™ for analysis of uncoated packaging and BEOL structures, where low-vacuum imaging helps reduce charging and EDS provides compositional information during failure analysis.
The same application work showed that VEGA™ can combine BSE imaging and elemental mapping and can inspect sub-micron BEOL layers.
I would be careful not to position VEGA™ as the answer to every semiconductor microscopy problem. There are obviously advanced nanoscale applications that require a different class of instrument. But for packaging, materials inspection, process support and routine failure analysis, it can be a very useful tool.
That is actually one of the situations where VEGA™ becomes particularly practical.
SingleVac™ and MultiVac allow users to work with charging, non-conductive, beam-sensitive or outgassing samples in low vacuum. Depending on the application, that can reduce the need for conductive coating and therefore reduce sample preparation.
We see a good example in semiconductor failure analysis. An uncoated package can charge badly under conventional high-vacuum imaging. In our VEGA™ application work, switching to low vacuum allowed the required image information to be collected without the charging artifacts, and the change between vacuum modes could be made within seconds.
That flexibility is useful far beyond semiconductors. Polymers, ceramics, powders and many composite materials present similar challenges.
For an industrial laboratory, less sample preparation can also mean a faster path from receiving the sample to understanding what happened.
The benefit is not simply that VEGA™ “has EDS.” The important question is what happens when the operator needs to move from imaging to chemistry.
With Essence™ EDS, spectra, elemental maps and other compositional information are available inside the same environment as the SEM image. That means the user does not have to continuously move between separate workflows just to answer the next question about the sample.
In our semiconductor application example, the region of interest could be selected directly in the live SEM window. Because the image did not have to be reacquired in separate third-party EDS software, the workflow reduced time to data.
For an experienced microscopist that saves steps. For somebody who uses the microscope only occasionally, it can make the whole workflow easier to learn.
And that matters in industrial laboratories because the person using SEM today may be a dedicated microscopist, while tomorrow it may be a materials engineer or quality engineer.
Korea is interesting because materials characterization is relevant across so many of its strategic industries.
Semiconductors, displays, batteries, advanced materials and electronics all require microscopy not only at the front edge of R&D, but throughout materials development, process optimization, failure analysis and quality control.
Korea also remains exceptionally research-intensive. OECD data puts Korean R&D expenditure at around 5.1% of GDP in 2024, one of the highest levels among OECD economies.
Learn more: Discover how SEM detectors use secondary and backscattered electrons to reveal surface details and material contrast.
Having budget available by itself is not a good reason to buy a microscope.
The better question is whether there is a recurring analytical problem that an SEM can remove.
For example: Are you sending routine SEM or EDS work outside because you do not have enough internal capacity? Is your high-end SEM overloaded with jobs that do not actually need its full capability? Does QC regularly wait for microscopy results? Are engineers relying on optical microscopy for defects that need more resolution or compositional information? Or is your team working with a growing range of samples that require flexible imaging conditions?
If one or more of those problems exist, adding a reliable analytical SEM can continue delivering value long after the current budget year has finished.
That is where I think VEGA™ makes a strong case. It is not an instrument purchased for a single experiment. It can support materials R&D, QC, failure analysis and routine inspection across many different projects and teams.
“The reason to use year-end budget is not that the budget exists. It is that the analytical need will still exist next year, and the year after that.”
Bring your problem, not a list of specifications.
Ideally, bring the samples you actually analyze and tell us what you need to learn from them.
Are you looking for morphology, composition or both? Are the samples conductive? How large are they? Do you need chemical information? Are you studying fracture surfaces, coatings, particles, electronics, ceramics or polymers? How often will the microscope be used, and will it be operated by one specialist or many users?
Those answers are much more useful than starting with a specification table.
If possible, I would always prefer to look at the customer's own sample. That lets us determine very quickly whether VEGA™ is the right level of SEM for the problem or whether the application genuinely requires something more advanced.
For me, that is the best way to evaluate any microscope.
Talk to a Tescan specialist about your application and find out whether VEGA™ is the right SEM for your laboratory.