Essays about: "etching"

Showing result 21 - 25 of 79 essays containing the word etching.

  1. 21. Investigation of the heat transfer of enhanced additively manufactured minichannel heat exchangers

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Hamidreza Rastan; [2019]
    Keywords : Minichannel; Microchannel; Heat exchanger; Additive manufacturing; 3D printing; Numerical simulation; CFD; Comsol;

    Abstract : Mini-/microchannel components have received attention over the past few decades owing to their compactness and superior thermal performance. Microchannel heat sinks are typically manufactured through traditional manufacturing practices (milling and sawing, electrodischarge machining, and water jet cutting) by changing their components to work in microscale environments or microfabrication techniques (etching and lost wax molding), which have emerged from the semiconductor industry. READ MORE

  3. 22. CuPGS Laminate Core for a Matrix Microchannel Heat Exchanger

    University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Author : Torkel Skog; [2019]
    Keywords : cryogenics; counter-flow; matrix heat exchanger; microchannel; PGS;

    Abstract : Cryocooling is a continuously developing field of engineering, applied in the fieldsof aerospace, military, and medical sciences among others. There is a demand forsmaller and more efficient cryocoolers for spaceborne low-light observation missions,with many custom cooling systems having completed successful missions. READ MORE

  4. 23. Offline study of next generation EUV pellicle materials and performances : From experimental design to material characterization

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Susanna Licheri; [2019]
    Keywords : Semiconductors; Nanotechnology; EUV Lithography; EUV Pellicle; Qualification study; Halvledare; nanoteknik; EUV litografi; EUV Pellicle; kvalificerings studie;

    Abstract : Lithography is the most crucial step in the semiconductor microfabrication workflow. Continuous features size shrinking co-occurs with the reduction of the exposure wavelength: a move from 193 nm light to extreme ultra-violet (EUV) at 13.5 nm is performed. The change poses a vast number of challenges that have been overcome in the past years. READ MORE

  5. 24. Paper Printing Circuit Based on Inductively Coupled Wireless Transmission

    University essay from Mittuniversitetet/Institutionen för elektronikkonstruktion

    Author : Mingxuan Zhao; [2018]
    Keywords : Wireless energy transfer; circuit printing on paper; efficiency;

    Abstract : This report is about how to design and fabricated a wireless energy transfer system which is printed on flexible photo paper. That is a technology used to print conducting tracks on paper, or even entire circuit system. READ MORE

  6. 25. Reactive Ion Etching of Silicon using F-based chemistry - Exploring the Limits

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

    Author : Harald Havir; [2018]
    Keywords : Reactive Ion Etching; Plasma Etching; CHF3; SF6; High Anisotropy; Physics and Astronomy;

    Abstract : Dry Etching is widely used in nanoprocessing as a method of pattern transfer onto a hard substrate, like silicon. Improving the resolution of this etch process is an important step in reducing the feature size in, for instance, computer microchips, or Nanoimprint Lithography stamps. READ MORE