Sökning: "dry etching"
Visar resultat 11 - 15 av 26 avhandlingar innehållade orden dry etching.
11. Micromachined epitaxial colossal mognetoresistors for uncooled infrared bolometer
Sammanfattning : High quality perovskite manganites, La1-xAxMnO3 (A = Ca, Sr, Ba) are very attractive materials due to their great application potential for magnetic memory, uncooled infrared (IR) microbolometer and spintronics devices. This thesis presents studies of the growth and material characterization (including structural, electrical, magnetic and noise) of epitaxial manganite films on Si and GaAs. LÄS MER
12. Experiments and modeling of thin film processes
Sammanfattning : The processes employed in modern microelectronics are very sophisticated, often representing a complex combination of physical and chemical components with a large number of parameters. Our knowledge and understanding about these processes are often limited; their description is mostly empirical or semi-empirital at best. LÄS MER
13. Design and process issues of junction- and ferroelectric-field effect transistors in silicon carbide
Sammanfattning : In todays solid-state electronics, Si and SiO2 are thedominant materials used. However, new materials such as SiC orferroelectrics are required for some special applications sincesuperior characteristics can be achieved in electronic devices. LÄS MER
14. Quantum electronic transport in low-dimensional semiconductors
Sammanfattning : Electronic transport is studied at low temperatures in two-dimensional electron gases (2DEGs) and in mesoscopic semiconductor microstructures. The method of microwave-detection of the Shubnikov-de Haas effect for the contact-free characterisation of transport properties of 2DEGs is explored using both magnetic-field modulation and light-induced carrier modulation. LÄS MER
15. Production and biomedical use of non-conventional positron emitters
Sammanfattning : Positron Emission Tomography (PET) is a powerful diagnostic tool. So far, it has mainly been associated with the use of short-lived positron emitters with half-lives shorter than 2 h, like 11C and 18F. LÄS MER