deposition diffusion process

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• Deposition (aerosol physics) — In aerosol physics, Deposition is the process by which aerosol particles collect or deposit themselves on solid surfaces, decreasing the concentration of the particles in the air. It can be divided into two sub processes: dry and wet deposition.… …   Wikipedia

• Deposition (Aerosol physics) — In aerosol physics, Deposition is the process by which aerosol particles collect or deposit themselves on solid surfaces, decreasing the concentration of the particles in the air. It can be divided into two sub processes: dry and wet deposition.… …   Wikipedia

• Vacuum deposition — Not to be confused with Vacuum coating. Vacuum deposition is a family of processes used to deposit layers atom by atom or molecule by molecule at sub atmospheric pressure (vacuum) on a solid surface. The layers may be as thin as one atom to… …   Wikipedia

• Pulsed laser deposition — (PLD) is a thin film deposition (specifically a physical vapor deposition, PVD) technique where a high power pulsed laser beam is focused inside a vacuum chamber to strike a target of the desired composition. Material is then vaporized from the… …   Wikipedia

• Semiconductor process simulation — is the modeling of the fabrication of semiconductor devices such as transistors. It is a branch of electronic design automation, and part of a sub field known as technology CAD, or TCAD. 400px|right|thumb|This figure shows a result from… …   Wikipedia

• Supercritical fluid — A supercritical fluid is any substance at a temperature and pressure above its thermodynamic critical point. It can diffuse through solids like a gas, and dissolve materials like a liquid. Additionally, close to the critical point, small changes… …   Wikipedia

• Self-aligned gate — A self aligned gate is a design arrangement where a highly doped gate in a MOSFET is used as a mask for the doping of the source and drain around it. This technique ensures that the gate will always overlap the edges of the source and drain. The… …   Wikipedia

• metasomatic replacement — Process of simultaneous solution and deposition in which one mineral replaces another. It is the method by which wood is petrified (silica replaces the wood fibres), minerals form pseudomorphs (new minerals that preserve the characteristic… …   Universalium

• electrochemical reaction — ▪ chemistry Introduction       any process either caused or accompanied by the passage of an electric current and involving in most cases the transfer of electrons between two substances one a solid and the other a liquid.       Under ordinary… …   Universalium

• Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry       The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …   Universalium

• Copper indium gallium selenide solar cells — Copper indium gallium selenide (CuIn1 xGaxSe2 or CIGS) is a direct bandgap semiconductor useful for the manufacture of solar cells. Because the material strongly absorbs sunlight, a much thinner film is required than of other semiconductor… …   Wikipedia