Ultra-High Vacuum Systems

Ultra-High Vacuum Systems

Carbon Coater, Pulsed Laser deposition, Sputter Coater, Thermal evaporation
Since vacuum means no material, what is actually measured as vacuum, is the residual gas pressure in the chamber.   Three different units of expression are usually used to express the pressure: Pascal (Pa), Torr, and mbar. Vacuum quality is also usually classified into three categories: Rough Vacuum, High Vacuum and Ultra-High Vacuum. Ultra-High Vacuum (UHV) is called pressure range less than 10-7 Pascal or 10-9 Torr. Classification of different vacuum levels When an ionic or electron beam collides with particles (residual gas inside the chamber), it may deviate from its path, divide or even react with that particle. As a result, the presence of unwanted particles in the system will reduce its efficiency. Mean Free Path (MFP) is the average distance traveled by a gas molecule before colliding with another…
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Gettering Pumps

Gettering Pumps

Carbon Coater, Pulsed Laser deposition, Sputter Coater, Thermal evaporation
There has also been a Gettering mechanism, which has been a pumping method, since vacuum technology came into being. Historically, the first use of this method was in the early stages of making electron tubes. The basis of the Gettering method is the absorption of some gases by some materials which results in their removal from the environment. Getter pumps fall into the general category of Capture pumps, along with cryopumps and sputter-ion pumps. The Gettering process can be divided into physical and chemical categories. Physical Getters are often found in cryostats and Dewars. In these systems, a zeolite material such as a molecular sieve is used to physically absorb and hold water vapor. If, as is often the case, the molecular sieve is placed against a surface at liquid…
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Deposition thin films of Organic Materials by Thermal Evaporation for Electro-Optical Applications

Deposition thin films of Organic Materials by Thermal Evaporation for Electro-Optical Applications

Carbon Coater, Pulsed Laser deposition, Sputter Coater, Thermal evaporation
Electronic components based on thin-film organic semiconductors have many applications because of their flexibility and large-scale fabrication at low cost. These semiconductors allow the creation of electronic devices such as OFET (Organic-Field Effect Transistor), OLED (Organic-Light Emitting Diode) and OPV (Organic Photovoltaic Cell) as a new generation of electronics. The electronic properties of the organic molecules depend on the bonds between the atoms. The location and properties of these interatomic bonds determine how light is absorbed and the charge transferred by molecules. The most important of these bonds are the conjugated bonds and how they are joined inside the molecules, where the shared electrons are able to move part of the molecule. Figure 1: Molecular structure of polyethylene and polyacetylene In non-conductive molecules such as polyethylene (shown in Figure 1),…
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Forecasting Turnover in the Field of Vacuum Layer Systems

Forecasting Turnover in the Field of Vacuum Layer Systems

Carbon Coater, Pulsed Laser deposition, Sputter Coater, Thermal evaporation
Studying Global Vacuum Layer Market Report Improves Business Decision Making. The global vacuum deposition system marketplace provides a wide range of opportunities for global manufacturers, service providers and users of the products. This report provides comprehensive and relevant information on the key players in the major global market share in terms of revenue, sales, supply, demand and quality of the vacuum coatings field products and services. The main market leaders are: Applied Materials, Buhler, Oerlikon, Von Ardenne, Shincron, ULVAC, KDF, Denton Vacuum, Veeco Instruments, IHI, CVD Equipment Corporation, BOBST, Mustang Vacuum Systems, Semicore. In the coming years, there is a growing demand for vacuum layer systems in North America and Europe. The costs of industrial squares, fierce competition, the introduction of new products, the rising costs of public industry, the…
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Field Emission Scanning Electron Microscope (FE-SEM)

Field Emission Scanning Electron Microscope (FE-SEM)

Pulsed Laser deposition, Sputter Coater, Thermal evaporation
Optical microscopes have a maximum magnification of 2000 times the magnification that is often not enough. To see particles that are smaller than the wavelength of light, we need to have very small particles so that they can be traced back to the target and visualized very small particles. The best particle for this purpose is electron. Electron is a charged and fundamental particle that can improve the magnification up to a million times. Scanning electron microscopy is an efficient and non-destructive technique that provides detailed information on the morphology, composition and structure of the studied materials. The first scanning electron microscope was invented in 1942. It was shown at that time that Secondary Electrons (SE) produced topographic contrast using the collector positive bias rather than the sample. After that,…
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Pulsed DC Magnetron Sputtering

Pulsed DC Magnetron Sputtering

Carbon Coater, Pulsed Laser deposition, Sputter Coater, Thermal evaporation
In the DC sputtering process by accelerating positive ions towards the target material (which is in negative potential) and colliding with its surface, due to the lack of electrical conductivity of the surface to move the charge, the positive charge accumulates on the surface of the target material. Due to this phenomenon, the tendency of the positive ions to move towards the target material is reduced and the sputtering process does not function properly. In the DC sputtering process of the dielectric material, the inner wall of the vacuum chamber is also coated with non-conductive material and traps the electric charge. This phenomenon, called the disappearing anode, causes the electrical charges from inclined toward this nonconductive layer. Due to this phenomenon, mini and macro arcs are created during the deposition…
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Vaccoat Products introduction on Nano Industry Magazine

Vaccoat Products introduction on Nano Industry Magazine

Carbon Coater, Pulsed Laser deposition, Sputter Coater, Thermal evaporation
In this magazine, We could know about DTT- a desktop, a turbomolecular-pumped thermal evaporator for vacuum deposition of thin films, Our supplier on Russia and capability of the Vaccoat Products. Also about our other products such as DSR1 (Desk SEM sputter coater) that is a compact coating system able to coat carbon film and noble metals such as gold (Au), palladium (Pd), platinum (Pt) and gold/palladium (Au/Pd) on non-conductive or poorly conductive specimens, or DCR that is a compact carbon fiber coating system suitable for sample preparation for the use in a scanning electron microscope (SEM), Transmission electron microscope (TEM) and X-Ray analysis (EDX). You can see the bottom, a screenshot of nano industry magazine (http://www.nanoindustry.su/page/nano_en?lang=en) with our DTT.
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Military applications of the optics and vacuum thin film deposition

Military applications of the optics and vacuum thin film deposition

Sputter Coater
Optics are used almost anywhere in the military. From vision systems and target designators used by troops on the ground, through guidance systems utilized in both manned and unmanned aircraft, to reconnaissance and surveillance packages carried by satellites in Earth orbit. These optical systems are usually in a hard and variable temperature and humidity and in contact with abrasive materials such as sand and salt. The use of coatings deposited by different methods of the deposition is a definitive requirement for all these systems. These coatings, in addition to physically protect sensitive components and sensors against stressful conditions, should be such as to allow components and sensors to provide the proper function for which they are designed. Regarding the military status, all these tasks occur when the inappropriate operation and…
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The role of Un-Balanced Magnetron sputtering on the characteristics of

The role of Un-Balanced Magnetron sputtering on the characteristics of

Sputter Coater
The role of Un-Balanced Magnetron sputtering on the characteristics of Tin dioxide thin-film unbalanced and balanced magnetron sputtering. Sputtering was first introduced in 1852 and was used by a person named Groe. He could using an electrical discharge deposited the metal film on a cold cathode. At first, sputtering was used for deposition of the refractory metals film, whose deposition was not possible by thermal evaporation, but gradually, using radio frequency waves (RF), the possibility of dielectric films was also provided by the Suturing deposition method. Spotting is in fact the process of transferring the momentum of the particles (usually the ions of neutral gases) to the surface of the target. Parameters such as energy, angles and masses of the incident particles, as well as the binding energy between atoms,…
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Effect of bias on structure mechanical properties and corrosion resistance…

Effect of bias on structure mechanical properties and corrosion resistance…

Sputter Coater
Over the past few decades, technological advances have made it possible to deposition of the thin films under vacuum which referred to as "Hard Coatings". These coatings have different applications due to their special structural and physical properties as protective coatings. Hard coatings consist of nitrides, carbides and borides of intermediate metals such as titanium or carbon coatings such as diamonds. These coatings have many applications in improving tools (such as cutting and forming machines) and machine parts like valves. Properties of a thin film of hard coatings can be classified as follows: Structural characteristics such as thickness, crystallography, chemical composition, surface morphology and roughness.Physical and chemical characteristics such as density, electrical properties, magnetic properties, thermal, optical, oxidizability and corrosion.Mechanical properties such as hardness, adhesion, mechanical stress and friction. The…
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