Sökning: "electroplating"

Visar resultat 11 - 13 av 13 uppsatser innehållade ordet electroplating.

  1. 11. Ag-In transient liquid phase bonding for high temperature stainless steel micro actuators

    Uppsats för yrkesexamina på avancerad nivå, Mikrosystemteknik

    Författare :Martin Andersson; [2013]
    Nyckelord :TLP; PCM; microactuator; mannitol; high temperature; microsystems;

    Sammanfattning : A stainless steel, high temperature, phase change micro actuator has been demonstrated using the solid-liquid phase transition of mannitol at 168°C and In-Ag transient liquid phase diffusion bonding. Joints created with this bonding technique can sustain temperatures up to 695°C, while being bonded at only 180°C, and have thicknesses between 1. LÄS MER

  3. 12. Cryogenic Etching of the Electroplating Mold for Improved Zone Plate Lenses

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Daniel Larsson; [2010]
    Nyckelord :etching; plasma etching; zone plate; x-ray; nanofabrication; sidewall passivation; cryo; cryogenic; undercut;

    Sammanfattning : The fabrication of zone plate lenses that are used for focusing X-rays relies on nanofabrication techniques such as e-beam lithography, reactive ion etching, and electroplating. The circular grating-like zone plate pattern can have a smallest half-period, a so-called zone width, of down to 20 nm while it also needs to have a height that is 5 to 10 times the zone width to have good diffraction efficiency. LÄS MER

  4. 13. Investigation and growth of nickel coatings for electrical contact applications

    Master-uppsats, Institutionen för fysik, kemi och biologi

    Författare :Maria Fawakhiri; [2009]
    Nyckelord :Diffusion barrier; nickel; sputtering; electroplating; electrical contacts;

    Sammanfattning : Nickel based coatings were deposited on copper substrates by two different sputtering techniques from a nickel alloy based target. The substrates used were commercially available copper based substrates for low duty electrical contacts. The coatings were analyzed and evaluated as copper diffusion barriers for electrical contact applications. LÄS MER