Metallization of Low Temperature Cofired Ceramics.

Investigation of low-temperature cofired ceramics packages for high-temperature SAW sensors

Surface acoustic wave (SAW) temperature sensor devices have been developed for operating temperatures up to and above 1000 C. A challenging task to make these devices available on the market is to develop an appropriate housing concept. A concept based on low-temperature cofired ceramics (LTCC) has been investigated and tested under elevated temperatures up to 600 C. The devices showed promisin...

Ultra-low percolation threshold in ferrite-metal cofired ceramics brings both high permeability and high permittivity

High permeability and high permittivity are hard to be achieved simultaneously, either in single-phased materials or in composite materials, such as ferrite-ferroelectric ceramic composites and ferrite-metal percolative composites. In this work, ultra-low percolation threshold is achieved in NiZnCu ferrite-Ag cofired ceramics, which endows the composite with both high permeability and high perm...

Technology and applications of Low Temperature Cofired Ceramic (LTCC) based sensors and microsystems

The paper presents general information on LTCC materials, manufacturing processes and properties of fired modules. A Multichip Module package has been the main application of Low Temperature Cofired Ceramic (LTCC) technology. Recently, this technology is also used for production of sensors, actuators and microsystems. The research and development on the LTCC sensors and microsystems carried out...

Investigation of High-Q Resonators Embedded in Low Temperature Cofired Ceramic for Millimetre-Wave Oscillators

Low-temperature degradation of different zirconia ceramics for dental applications.

The aim of this investigation was to determine the influence of simulated ageing on the tetragonal-to-monoclinic phase transformation and on the flexural strength of a 3Y-TZP ceramic, compared to alumina toughened zirconia (ATZ) and ceria-stabilized zirconia (12Ce-TZP). Standardized disc specimens of each material were hydrothermally aged in steam at 134°C and 3bar for 0, 16, 32, 64 or 128h. Th...