Extreme Ultraviolet Lithography MD JAWWAD REZANOOR (113001040); AMLAN SEN(092100040); MIZANUR RAHMAN(093052040) Azimur Rahman School of Engineering‚ Presidency University‚ Dhaka Abstract- Extreme Ultraviolet lithography (EUVL) is the leading technology‚ widely believed to take semiconductor lithography to the next generation. EUVL is the technology being considered for printing circuits at the 32nm node and below in a high volume manufacturing (HVM) environment fab. Compared to the traditional
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OBJECTIVES: To determine the maximum wavelength of potassium permanganate. To plot the calibration curve of potassium permanganate. To determine the concentration of an unknown solution of potassium permanganate. INTRODUCTION: UV Spectrophotometer has 4 main components which is the UV light source‚ the sample‚ detector and the processor/recorder. Spectrophotometry is a technique that uses the absorbance of light by an analyte (the substance to be analyzed) at a certain wavelength to determine
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EXPERIMENT 2 : UV-VISIBLE DETERMINATION OF AN UNKNOWN CONCENTRATION OF KMnO4 OBJECTIVE 1. To determine the maximum wavelength of potassium permanganate. 2. To plot the calibration curve of potassium permanganate. 3. To determine the concentration of an unknown solution of potassium permanganate. APPARATUS Beaker‚ burette‚ glass rod ‚volumetric flask 100ml ‚dropper CHEMICALS Potassium permanganate (KMnO4)‚ distilled water PROCEDURE A. Preparation of the KMnO4 standard solution
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Current resists utilise chemical amplification to achieve the desired sensitivity‚ hence their name‚ chemically amplified resists (CAR). In the chemical amplification scheme‚ a single photochemical event induces a cascade of subsequent chemical transformations in a resist film; irradiation produces active species that catalyze numerous chemical reactions. Although the active species could be either ionic or radical in principle‚ use of photochemical acid generators (PAGs)‚ which was proposed in the
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Absorption Spectra of Conjugated Dyes 04-21-2103 Introduction: The visible absorption bands or conjugated dye arise from electron transitions involving the electrons in the conjugated and they are free to move along the chain and are not attached to any atom. An example of such a dye is 3‚3-diethyl-thiacyanine iodide. The cation has two resonance forms causing each of the bonds in the conjugated chain to have an order of 1.5 and have a length similar to the C--‐C bond length in benzene
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Evaluation of Paracetamol Content in Tablet Dosage Form Using UV-Spectrophotometry Casilagan‚ Camela Mae C.‚ and Jimenez‚ Joshua M. Chemistry Department‚ College of Science Adamson University Ermita‚ Manila 1.0 Introduction UV-Visible Spectrophotometry is a widely-used technique in Chemical and Pharmaceutical Analysis. And this method has been very useful both for Qualitative and Quantitative Applications‚ especially for organic compounds. Some of its advantages for Quantitative purposes
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electromagnetic spectrum (EM Spectrum) is the range of all types of EM radiation. Radiation is energy that travels and spreads out as it goes. The different types of EM radiation that make up the electromagnetic spectrum are microwaves‚ infrared light ‚ ultraviolet light‚ radar‚ visible light‚ radio‚ x-rays and gamma-rays. Radio: Radio waves given out by radio stations. They are also given out stars and gases in space. Microwave: Microwave radiation will cook scrambled eggs‚ but is also used by astronomers
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http://www.skincancer.org/skin-cancer-information/melanoma . Melanoma have main cause is exposure to ultraviolet radiation (UV) this essay is discuss of the ultraviolet radiation‚ risk factor is family history and physical and social affects. The major cause of melanoma is ultraviolet radiation (UV). The ultraviolet radiation comes of sunlight. Most occur melanoma caused by exposure to ultraviolet radiation‚ which can damage DNA. The damage DNA is become new skin cells begin to grow out of control
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ROLE OF YOUTH IN OZONE LAYER PROTECTION Ozone layer plays a vital role in protecting animals‚ human beings and plants from ultraviolet radiation. Ozone layer is destroyed by a group of manufactured or human made chemicals such as chlorine bromine. These chemicals are called "ozone-depleting substances". Ozone layer is destroyed by some natural’s ways and some humane made activities. A single molecule of chlorine can break apart thousands of molecules of ozone. Chlorofluorocarbons the most widely
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Science Essay: We use the electromagnetic spectrum every day it’s the microwave you use to heat your food and the cell phones you use to text! Those are part of the Electromagnetic Spectrum. The light that our eyes can see is also part of the electromagnetic spectrum. This visible part of the electromagnetic spectrum consists of the colors that we see in a rainbow - from reds and oranges‚ through blues and purples!! The electromagnetic spectrum has 7 parts to it‚ radio waves‚ microwaves‚ infrared
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