PPT-Evaporation Chemical Vapor Deposition (CVD)

PlasmaEnhanced Chemical Vapor Deposition PECVD Metal Organometallic CVD MOCVD Molecular Beam Epitaxy MBE Deposition 27 and 29 March 2017 CVDVarious Techniques Atmospheric pressure CVD APCVD CVD at atmospheric . 0 For CH OH the normal boiling point is 646 For C OH the normal boiling point is 783 brPage 2br Vapor Pressure and Boiling Point The vapor pressure of a liquid is related to its heat of vaporization vap through the ClausiusClapeyron Equation If P 1 To relate the boiling point of water to its vapor pressure . Objectives. A. . Evaporation and Vapor Pressure . Vaporization or evaporation . Endothermic . A. . Evaporation and Vapor Pressure . Amount of liquid first decreases then becomes constant . COATINGS. Coatings of metallic, inorganic and organic materials can provide a satisfactory barrier . . between metal and its environment and can protect the metal surface against corrosion. .. The following kinds. (PVD and CVD). 1. Plan of presentation. Deposition methods. . CVD(. . Chemical . Vapor . Deposition) . . PVD ( Physical . Vapor . Deposition. ). Principles, processes on . the surface . . 2. What is evaporation?. How is evaporation measured?. How is evaporation estimated?. Reading: Applied Hydrology Sections 3.5 and 3.6. With assistance from Dan Siegel and Marcy Litvak. Evaporation. What is evaporation?. Condensation?. Precipitation?. Evaporation Condensation Precipitation. Water falls to the ground.. My coffee is steaming hot. .. Evaporation Condensation Precipitation. It is snowing!. Evaporation Condensation Precipitation. ~A short lived induced dipole . dipole. attraction . between atoms that don’t normally have a dipole moment.. An orbital is an area of probability of an electron. . The electron does not have a uniform motion, at least we don’t think it does. We don’t know what the motion of an electron is. A process whereby liquid water is . converted to water vapour. and . removed from the vapour surface.. Evaporation consists of 2 components i.e. The energy component and the aerodynamic component. The energy component is responsible conversion of liquid water to water vapour. (With emphasis on shallow water bodies) . 1. ET Workshop. 12-Mar-2010. INTRODUCTION. Evaporation is rarely measured directly. Estimating methods include:. pan coefficient . x. measured pan evaporation. Outline. Introduction. Basic Theory. Thermal . and e-gun evaporation. Sputtering. Laser ablation. Introduction . Physical Vapor Deposition (PVD) basically consist of vaporizing a source (target) in order for the transfer to and deposition on a substrate. Rotary Evaporation. Hazard. Control. Frost bite. Wear insulated gloves when handling dry . ice. Chemical spills. Secure the clamp on the collection . flask,. and secure the bump trap. Always . wear PPE. Prof Kausik Ray, . BSc (. hons. ), . MBChB. , MRCP, MD, MPhil (. Cantab. ), FACC, FESC, FAHA. Professor of Cardiovascular Disease Prevention. St Georges University of London. Honorary Consultant Cardiologist St Georges Hospital. Lecture -3 . By. Dr.. . Kusum. . Rawat. Assistant Professor. Department of Electronics. Deen. . Dayal. . Upadhyaya. Gorakhpur University. What is Epitaxy?. Epitaxy. : . Deposition and growth of monocrystalline structures/layers.. PHYS 1600. September 27, 2021. PROBLEM. : How do we make useful devices – especially electronic circuits – from scratch?. Solder them together from components? . Sep. 27, 2021. 2. Need millions of diode/transistor circuits to achieve the computing speeds, and the densities of memory required!.