Essays about: "contact barrier resistance"

Found 2 essays containing the words contact barrier resistance.

1. 1. Niobium Ohmic Contacts for Cryogenic Indium Phosphide High-Electron-Mobility Transistors

   University essay from KTH/Tillämpad fysik

   Author : Linnéa Bendrot; [2022]
   Keywords : Ohmic contacts; high-electron-mobility transistor; InP; Nb films; cryogenic electronics; low-noise amplifier; quantum computing; transfer length method; superconductivity; contact barrier resistance; Ohmska kontakter; högelektronmobilitetstransistorer; indiumfosfid; niob; tunnfilm; kryogen elektronik; lågbrusförstärkare; kvantdatorer; Transfer Length-metod; supraledning; kontakt- barriärresistans;

   Abstract : Ohmic contacts are crucial components in semiconductor devices such as transistors and diodes, and lowering their contact resistance is an important factor in device performance enhancement. This is especially important for low-noise amplifiers (LNAs) where device noise temperature decreases both directly and indirectly with decreasing contact resistance. READ MORE

3. 2. Simulation and analysis of InP/GaInP nanowire Esaki diodes for photovoltaic device applications

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

   Author : Odd Restad; [2017]
   Keywords : Physics and Astronomy; Technology and Engineering;

   Abstract : In this thesis the WKB-approximation is used to simulate the tunneling current for an Esaki nanowire diode and the result is compared to data from Esaki nanowire diodes grown with MOVPE. The WKB-approximation with triangular potential barrier predicts a strong increase of the tunneling current as a function of the doping densities and at the highest doping levels it gives lower tunneling distances than more reliable drift-diffusion simulations and is thus overestimating the current. READ MORE