Search for dissertations about: "emitter"

Showing result 11 - 15 of 109 swedish dissertations containing the word emitter.

2. 11. The influence of process-induced defects on electrical properties of silicon junctions

   Author : Gert I. Andersson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tunneling; ; silicon emitter junctions; discrete conductance fluctuation; shallow doping; deep-level transient spectroscopy;

   Abstract : .... READ MORE

4. 12. Towards Unconventional Applications of Wire Bonding

   Author : Stephan Schröder; Frank Niklaus; Michael Mayer; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Micro-electromechanical systems MEMS ; heterogeneous 3D integration; wire bonding; wire integration; transfer wafer bonding; nondispersive infrared gas sensing; low-stress packaging; shape memory alloy SMA ; infrared IR emitter; through silicon via TSV ; ethanol sensing; nitric oxide gas sensing; wafer-level; chip-level; Kanthal; nickel chromium NiCr ; Electrical Engineering; Elektro- och systemteknik;

   Abstract : This thesis presents novel heterogeneous integration approaches of wire materials to fabricated and package MEMS devices by exploring unconventional applications of wire bonding technology. Wire bonding, traditionally endemic in the realm of device packaging to establish electrical die-to-package interconnections, is an attractive back-end technology, offering promising features, such as high throughput, flexibility and placement accuracy. READ MORE

5. 13. Silicon Carbide BipolarTechnology for High Temperature Integrated Circuits

   Author : Luigia Lanni; Zetterling Carl-Mikael; Sei-Hyung Ryu; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; silicon carbide SiC ; bipolar junction transistor BJT ; current gain; surface passivation; SiC etching; complementary bipolar; lateral PNP; Darlington transistors; SPICE modeling; high-temperature; integrated circuits; emitter coupled logic ECL ;

   Abstract : The availability of integrated circuits (ICs) capable of 500 or 600° C operation can be extremely beneficial for many important applications, such as transportation and energy sector industry. It can in fact enable the realization of improved sensing and control of turbine engine combustion leading to better fuel efficiency and reduced pollution. READ MORE

6. 14. Gap discharge transducers applied to ultrasonic flow measurement

   Author : Kristoffer Karlsson; Per Lunde; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industriell elektronik; Industrial Electronics;

   Abstract : In this thesis, the potential of the gap discharge transducer is investigated as both a sound pulse emitter and a sound pulse receiver in a gas flow measurement setup. The main objective is to use the gap discharge transducer as an integral part in a gas flow measurement system developed for harsh environments. READ MORE

7. 15. Process integration issues for high-performance bipolar technology

   Author : Tord E. Karlin; KTH; []
   Keywords : ;

   Abstract : The work in this thesis has been focused on processintegration issues for high-performance bipolar technologyincluding experimental work on self-aligned silicides,ion-implanted andin situdoped polysilicon emitters, strained silicongermanium for heterojunction bipolar transistors and physicalprocess and device simulation.Key issues for the self-aligned silicidation of small devicefeatures such as the influence of dopants, silicon morphologyand line width on titanium disilicide formation, phasetransformation and temperature stability, have been addressed. READ MORE