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  • Dielectric Materials for Use in Radomes
    , inorganic or metal based materials such as Silica, Titanium dioxide and materials with high water content, have high dielectric constants that are not suitable for use in applications where insulation is needed. This is due to high interaction with electromagnetic fields, leading to many undesirable
  • Available Humidity, Dew Point, and Moisture Sensors, Probes & Connectors
    sensors contain a glass substrate with a moisture sensitive polymer layer between two metal layers. By absorption of water, corresponding to the relative humidity, the dielectric constant and, as a result, the capacity of the thin-film capacitor are changing. The measuring signal is directly
  • Capacitive sensors
    electrostatic field. A nonmetallic target entering the field increases the dielectric constant between the plates, raising the amplitude of the oscillations. The higher amplitude triggers a level detection circuit to turn the output of the sensor on. It turns off again when the target leaves
  • MICRO: The Hot Button
    gate electrodes and high-dielectric-constant gate insulators, as well as thinner liners and lower-dielectric-constant materials for wiring, the microelectronics industry is seeking to introduce new materials and device structures at an unprecedented rate. New materials are also the key
  • Humidity sensors
    Relative humidity, or RH, is the percentage of moisture in the air referenced to the maximum level of moisture the air can hold at that temperature and pressure. Relative humidity sensors come in both capacitive and resistive versions. Humidity changes the dielectric constant of the insulating
  • MICRO: Materials Integration
    a significant challenge. Advanced semiconductor fabs have met this challenge in production, and work is proceeding on the development of next-generation ultra-low-k dielectrics --particularly nanoporous materials --to further reduce the dielectric constant. In the integration process, three main
  • Proximity Sensors
    be suitable for a plastic target; an inductive sensor requires a metal target. In capacitive proximity sensors, the sensed object changes the dielectric constant between two plates. Sensing range is usually quoted relative to water. Because changes in capacitance take a relatively long time
  • No-static plastics
    . The main goal with ESD materials is controlling the charge during an ESD event. The best materials for the job are conductive with a high dielectric constant. Ordinary plastics are insulators, materials that prevent the flow of electrons across their surfaces or through their volumes. This contrasts

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