Space-Borne System-in-Package Based on High Reliability Microwave Interconnections

Impact of printed wiring board coatings on the reliability of lead-free chip-scale package interconnections

When lead-free solder alloys mix with lead-free component and board metallizations during reflow soldering, the solder interconnections become multicomponent alloy systems whose microstructures cannot be predicted on the basis of the SnPb metallurgy. To better understand the influences of these microstructures on the reliability of lead-free electronics assemblies, SnAgCu-bumped components were...

An Investigation of Reliability of High Density Electronic Package-to-Board Interconnections from the Perspective of Solder Joint Metallurgy

The integration and miniaturization trend of the electronic packaging leads to much finer pitch of the device and package lead terminations. Several reliability concerns and issues that were previously not encountered are now surfacing. The objective of this thesis work is to investigate the reliability of the package-to-board interconnection from the perspective of solder joint metallurgy. It ...

Random-modulation Cw Lidar System for Space-borne Carbon Dioxide Remote Sensing Based on a High-brightness Semiconductor Laser

LIDAR System based on a High Brightness Semiconductor Laser and Single Photon Counting Detection for Space-borne Atmospheric CO2 Monitoring

High brightness semiconductor lasers are potential transmitters for future space LIDAR systems. In this contribution, we propose an all-semiconductor laser source for an Integrated Path Differential Absorption LIDAR system for column-averaged measurements of atmospheric CO2 in future satellite missions. The transmitter design is based on two monolithic Master Oscillator Power Amplifiers, provid...

Building Recognition Based on Airborne and Space Borne Insar Data

Because of its independence of time of day and its all weather capability, synthetic aperture radar (SAR) has become a key remote sensing technique in the last decades. In the past, spatial resolution of space borne SAR systems was rather coarse, so the exploitation of building signature and even the reconstruction of buildings in dense urban areas based on InSAR data was restricted to commerci...