Essays about: "physical etching"

Showing result 1 - 5 of 7 essays containing the words physical etching.

  1. 1. Investigation on the Optimization of GaN Etching for FinFET Applications

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Albert Malmros; [2022]
    Keywords : Technology and Engineering;

    Abstract : In the framework of this thesis, the optimization of the etching process of GaN for FinFET applications has been investigated. FinFETs are transistors with a vertical architecture in the shape of fins. These fins are fabricated by etching a pattern into a GaN substrate. The etching is carried out in two steps, a dry etch and a wet etch. READ MORE

  3. 2. Investigating Optical-Field-Induced Currents in GaN using Ultrafast Lasers

    University essay from Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Author : Vidar Flodgren; [2019]
    Keywords : GaN; gallium nitride; nanoscience; material science; ultrafast lasers; Yb Laser; Pharos Laser; titanium sapphire laser; device fabrication; lift-off; gold etching; optical-field-induced currents; modelling; matlab; Physics and Astronomy;

    Abstract : This study saw the development of an experimental setup capable of generating and measuring optical-field-induced currents in a variety of nanodevices fabricated specifically for this project. Each device design features two metallic contacts, closely separated by about 5 micrometers, deposited onto a semiconductor or insulator substrate. READ MORE

  4. 3. Manufacturing of Electric Candle Preparing Industrial Production

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Leonard Hamngren; [2018]
    Keywords : Electric candle; manufacturing; injection moulding; surface roughness; brightness; Elektriskt stearinljus; tillverkning; formsprutning; ytjämnhet; ljusstyrka;

    Abstract : Det här examensarbetet är en fortsättning på ett tidigare kandidatexamensarbete vars syfte var att bestämma form och funktion för ett elektriskt stearinljus som skulle se så verklighetstroget ut som möjligt. En prototyp av ljuset byggdes för att testa den nya tekniska lösningen. READ MORE

  5. 4. Wet Etching of Silicon Germanium Nanowires

    University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Author : Grigory Liubchenko; [2017]
    Keywords : Wet Etching; Nanowires; Physics and Astronomy;

    Abstract : The aim of this project is to understand the wet etching mechanism of SiGe at the nanoscale. We will use the etching of SiGe nanowires as a case study and we will optimize the etchant solution in order to achieve high selectivity over Si, preserve the shape of SiGe nanowire (isotropic etching) and control their diameter below the threshold of ten nanometers. READ MORE

  6. 5. Antireflection Patterning of Si for InAsSb Nanowire Infrared Photodetectors

    University essay from Lunds universitet/Fysiska institutionen

    Author : Muhammad Rizwan Khalid; [2014]
    Keywords : Physics and Astronomy;

    Abstract : The pattering of an optical surface with physical features like with very low reflectivity and high transmission of IR or visible light can be used e.g. for antireflective windows for solar cells and photodetectors. READ MORE