Tungsten Filaments Applied in Latest SEM3000

Tungsten filaments are the standard type filaments widely used in scanning electron microscopes, including the latest released SEM3000 series, released in the “SEM New Products Launch Conference” held in Huishan, Wuxi, on November 29. This series currently includes standard model SEM3000 and professional model SEM3000S.

the tungsten filaments image

The scanning electron microscope (SEM) is a type of electron microscope that produces images of a sample by scanning the surface with a focused beam of electrons. The electrons interact with atoms in the sample, producing various signals that contain information about the surface topography and composition of the sample. SEM can achieve resolution better than 1 nanometer.

The conference invited well-known experts, researchers, and engineers in related fields in China to achieve an in-depth exchange on the latest progress of basic research, and applied the research of SEM in scientific research and industrial applications.

The standard SEM3000 is a cost-effective scanning electron microscope using the tungsten filaments,which could observe the microstructure of the sub-micron level, and the magnification reaches 20000 times. This type of product owns the advantage of fast filament replacement. Its resolution is better than 25nm. With the cooperation of an automatic five-axis sample stage, it is very suitable for production quality control and sample screening, as well as suitable for users who require more than the traditional optical microscopes.

Besides, the professional version of the SEM3000S achieves a magnification of 150,000 times. Grounded in the excellent electronic light path design and new focusing system, its resolution is easily better than 10nm. With the cooperation of 100mm automatic five-axis sample stage. It is a powerful assistant for scientific research and new material development.

the professional model SEM3000S image

The principle of the scanning electron microscope is to use the interaction of electrons and substances to obtain various physical and chemical properties of the measured sample itself, such as morphology, composition, crystal structure, electronic structure, and internal electric or magnetic fields. Such products are widely used in materials science, life sciences, chemistry, physics, geology, and mineralogy, electronics, food science research, as well as in semiconductor production, ceramics, chemical, petroleum, and other industrial fields.

Today, China's scanning electron microscopes mainly rely on imports, and domestic electron microscope products have been marginalized. Facing the status quo of the industry, domestic research institutions seized the opportunity and developed the tungsten filaments fitted SEM3000 series independently, which shows a promising prospect in the electron microscopy.