KF Assembly The KF or NW vacuum fittings consists of two identical flanges, a center-ring and an aluminum clamp. This assembly has a wingnut fastener which helps to frequently connect and disconnect without any tools. The KF or NW flange surface have 15o angle. This helps to create effective vacuum seal by clamp. The mating […]
Carbon Carbon occurs in different forms. For example, diamond, graphite, carbon nano-tubes, fullerene and graphene with different bonding and structures. Same carbon cab be used to make synthetic diamonds by chemical vapour deposition process. Graphite and diamond are most common forms of carbon and on the other hand graphene is recent development with new applications. […]
Plasma Enhanced CVD is a chemical vapour deposition process which deposits thin films. In this process deposition takes place from gas state to solid state on a substrate. Reacting gases creates plasma which helps for chemical reactions. The Plasma Enhanced CVD process takes place at 250 to 350 °C and because of low temperatures the […]
Low pressure chemical vapor deposition (LPCVD) is a deposition technology that uses heat to initiate a reaction of a precursor gas on the solid substrate. This reaction at the surface forms the solid phase material. Low pressure (LP) is used to decrease any unwanted gas phase reactions, and also increases the uniformity across the substrate. The […]
Atmospheric Pressure Chemical Vapour Deposition is a CVD method. A Basic CVD system can typically broken up into the following three components (1) precursor delivery; (2) the CVD reactor; and (3) exhaust management. As we explained in CVD article above. Atmospheric Pressure Chemical Vapour Deposition is a CVD method at normal pressure (atmospheric pressure). Which […]
Chemical vapour deposition or CVD is a name for a group of processes, which involve depositing a solid material from a gaseous phase. It is similar in some respects to physical vapour deposition (PVD). In PVD precursors are solids. Which are evaporated and deposited onto substrates. Types of CVD processes. CVD Process: In this process, […]
Evaporation boats are the best thermal evaporation source for vacuum evaporation metalizing. There are two types of boats. The main raw materials used are BN, TiB2 and AlN powder. The boats which contain all 3 materials are called “3 component boats” also some boats have BN and TiB2 powder which are called “2 component boats”. […]
What is Vacuum Coating? Vacuum Coating is thinner, lighter, more environmentally friendly and it gives better performance. Vacuum Coating process is carried out in ultra high vacuum environment where the target material is vaporized into extremely small particles. These particles deposit on the substrate and they create a thin layer of coat. This coating is […]
