Now showing items 1-5 of 5
Ray-optical prediction of radio-wave propagation characteristics in tunnel environments-Part 1 : theory
A tunnel is modeled as congregates of walls, with the wall being approximated by uniform impedance surface. The aim is to get a solution for a canonical problem ...
A charge-trapping-based technique to design low-voltage BiCMOS logic circuits
New BiCMOS logic circuits employing a charge trapping technique are presented. The circuits include an XOR gate and an adder. Submicrometer technologies are used in the simulation and the circuits’ performances ...
Ray-optical prediction of radio-wave propagation characteristics in tunnel environments-Part 2 : analysis and measurements
The uniform theory of diffraction (UTD) developed in Part 1 is used to predict narrow- and wide-band propagation characteristics in tunnels at 900- and 1800-MHz frequencies. Narrow-band propagation characteristics is shown ...
Failure analysis of bond pad metal peeling using FIB and AFM
Aluminum bond pads on semiconductor chips play an important role in chips functionality and reliability. Bond pad peeling during wire bonding process results in yield reduction. The failure mechanisms of the peeling must ...
Band offsets at GaInP/AlGaInP(001) heterostructures lattice matched to GaAs
In this work, the band offsets at the Ga0.5In0.5P/AlxGa0.5-xIn0.5P heterojunction lattice matched to (001) GaAs was calculated over the whole range of aluminum composition from x=0.0 to 0.5 using the first-principles ...