A5045593484- Acoustic Wave Resonator Technologies
- Metal and Thin Film Mechanics
- Ion-surface interactions and analysis
- Adhesion, Friction, and Surface Interactions
- Semiconductor materials and devices
- Ferroelectric and Piezoelectric Materials
- RFID technology advancements
- Advanced Sensor and Energy Harvesting Materials
- Electron and X-Ray Spectroscopy Techniques
- Analytical Chemistry and Sensors
- Electrical Contact Performance and Analysis
- Advanced Surface Polishing Techniques
- Electrical and Thermal Properties of Materials
- Advanced MEMS and NEMS Technologies
- Microfluidic and Bio-sensing Technologies
- Soil Moisture and Remote Sensing
- Electrowetting and Microfluidic Technologies
- Electronic Packaging and Soldering Technologies
- Meteorological Phenomena and Simulations
- Integrated Circuits and Semiconductor Failure Analysis
- Nanomaterials and Printing Technologies
- Geophysics and Gravity Measurements
Federal Agency for Cartography and Geodesy
2023
Leibniz Institute for Solid State and Materials Research
2015-2019
The validation of compatibility and long-term stability absolute gravimeters is a key component for the realization International Terrestrial Gravity Reference Frame (ITGRF) IAG relevant metrology, in particular kilogram. Because natural reference value gravity acceleration not accessible, international comparisons are well established. realized based on set accurate measurements functional model their processing. After CCM.G-K2.2023 comparison supplemented by additional ICAG-2023...
A highly efficient and reproducible cleaning procedure of piezoelectric substrates is essential in surface acoustic waves (SAW) technology to fabricate high-quality SAW devices, especially for new applications such sensors wherein materials interdigital transducers are used. Therefore, the development critical evaluation procedures each material system that under consideration becomes crucial. Contaminants like particles or presence organic/inorganic on substrate can dramatically influence...
High temperature surface acoustic wave sensors based on radio frequency identification technology require adequate antennas of high efficiency and thermal stability for the signal transmission. Platinum is well known frequently used as a material choice harsh environment applications because melting point its chemical stability. Therefore, one way to realize stable combination Pt metallization an Al 2 O 3 substrate. As cost-effective technique, film deposited via electrochemical deposition....
SAW sensors are very suitable for high temperature applications up to 1,000 °C or higher. In this work CTGS substrates were used as test sample material. To realize a sensor setup an interdigital transducer (IDT) is necessary and deposited onto the surface of CTGS. present thin film tungsten molybdenum (WMo) ruthenium aluminum (RuAl) functional chip metallization will be investigated. For electrical interconnecting dies wire bonding dominant technology in general. Therefore, also first...
In an effort to develop a cost-efficient technology for wireless high-temperature surface acoustic wave sensors, this study presents evaluation of combined method that integrates physical vapor deposition with electroless the fabrication platinum-based planar antennas. The proposed manufacturing process becomes attractive narrow, thick, and sparse metallizations antennas in MHz GHz frequency range. detail, narrow lines width down 40 μm were electroless-deposited on γ-Al 2O 3 substrates using...
Terrestrial gravimetry allows for integrative measurements of mass changes associated with water storage variations in all compartments above and below the Earth surface. Superconducting gravimeters (SGs) currently are most precise instruments continuous monitoring gravity change. Their footprint typically covers a radius about 1 km around instrument, signal originating from within first 100 meters. We installed SG (iGrav033) mixed pine-beech-oak forest TERENO observatory lowlands...