Sökning: "thin-film circuits."

Visar resultat 21 - 25 av 28 avhandlingar innehållade orden thin-film circuits..

1. 21. Electrical properties of polycrystalline silicon

   Författare :Matts Rydberg; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; Materialvetenskap; Materials science; Teknisk materialvetenskap; Elektronik; Electronics;

   Sammanfattning : Polysilicon is used, among other materials, in today's integrated circuits. In this thesis, the structural and electrical properties' of polysilicon thin film resistors have been studied. The aim has been to improve the long-term stability and increase the knowledge concerning grain-boundary related phenomena. LÄS MER

3. 22. Spin-dependant transport in lateral nano-devices based on magnetic tunnel junctions

   Författare :Mattias Urech; Vladislav Korenivski; Bernard Dieny; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Spin diffusion; magnetic tunnel junctions; Physics; Fysik;

   Sammanfattning : This thesis is an experimental study of spin dependent transport in nanoscale ferromagnetic tunnel junction arrays and lateral multi-terminal devices with normal metal and superconducting spin transport channels. Two-, three-, and five-junction arrays have been fabricated in the form of lateral circuits and characterized using variable temperature magneto-transport measurements. LÄS MER

4. 23. Polyelectrolyte-Gated Organic Field Effect Transistors – Printing and Electrical Stability

   Författare :Hiam Sinno; Magnus Berggren; Isak Engquist; Jan Linnros; Linköpings universitet; []
   Nyckelord :;

   Sammanfattning : The progress in materials science during recent decades along with the steadily growing desire to accomplish novel functionalities in electronic devices and the continuous strive to achieve a more efficient manufacturing process such as low‐cost robust high‐volume printing techniques, has brought the organic electronics field to light. For example, organic field effect transistors (OFETs) are the fundamental building blocks of flexible electronics. LÄS MER

5. 24. Flip chip for high frequency applications : materials aspects

   Författare :Katarina Boustedt; Dag Stranneby; Rao Tummala; Örebro universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Flip chip; underfill; bumping; microwave; gallium arsenide; high frequency; thermocompression; soldering; stud bumps; coplanar waveguide; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik; Elektronik; Electronics;

   Sammanfattning : Flip chip has since decades been the primary choice for chip interconnect for high performance circuits. Over the last few years, interest from the microwave arena has increased, and at this point in time microwave flip chip is a possible option for volume production. LÄS MER

7. 25. Photoluminescence-based characterization of bioengineered nanovesicles and erbium emitters

   Författare :Maryam Sanaee; Katia Gallo; Jerker Widengren; Martin Hof; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bioengineered nanovesicles; Coincident fluorescent burst analysis; Drug loading; Erbium emitters; Lithium niobate; Photoluminescence.; Bioingenjörskonstruerade nanovesiklar; Analys av sammanfallande fluorescerande blossteknik; Läkemedelslastning; Erbium-emitterare; Lithium niobate; Fotoluminiscens.; Biologisk fysik; Biological Physics; Optics and Photonics; Optik och fotonik;

   Sammanfattning : In recent decades, photoluminescence properties of single molecules and ions have opened new possibilities for studies on smaller size scales, below the light-diffraction limit. In this thesis, the advantages of such single photon emitters were harnessed and studied mainly in the field of biophysics, but also, in investigations within solid state photonics. LÄS MER