منابع مشابه
Aluminum Nitride Substrate Growth by Halide Vapor Transport Epitaxy
High-quality AlN layers with thickness up to 50 mm have been grown by HVTE at growth rates up to 60mm/h at deposition temperatures of 1000–11001C in the pressure range of 50–760Torr. The HVT process uses an aluminum chloride amine adduct as the aluminum source and ammonia for the nitrogen. This new technique eliminates the main difficulties of the conventional HVPE growth, where aluminum oxidat...
متن کاملBoron-nitride and aluminum-nitride "Pringles" and flapping motion.
Motivated by the recent successful synthesis of a new nanocarbon, namely, a warped, double-concave graphene "Pringle" (Nat. Chem., 2013, 5, 739), we investigate properties of warped boron-nitride (BN) and aluminum-nitride (AlN) analogues, i.e., the non-planar B40N40H30 and Al40N40H30 "Pringles" using density functional theory (DFT) calculations. Particular attention is placed on the effect of n...
متن کاملAluminum Nitride Piezoelectric Micromachined Ultrasound Transducer Arrays
Air-coupled piezoelectric micromachined ultrasound transducer arrays, operating at ~190 kHz, have been fabricated utilizing an aluminum nitride piezoelectric layer. Improved fabrication processes have reduced the frequency variation seen in our previous work with single transducers resulting in arrays of transducers with resonant frequencies (fn) that match within the fractional half-power band...
متن کاملDesign of Piezoelectric Aluminum Nitride MEMS Resonator
The following work reports the design, numerical, analytical and simulation characterization of an Aluminum Nitride MEMS resonator. The paper offers a comparison of rectangular plate MEMS resonator (length extensional and width extensional mode shapes) and ring shape MEMS resonator. It also demonstrates the contour Eigen modes of resonators and their equivalent electric circuit model (BVD). Fur...
متن کاملAluminum Nitride Deep - ultraviolet Light - emitting
The shortest-wavelength color of light that is visible to the human eye is violet. As shown in Fig. 1, light with wavelengths shorter than 400 nm is called ultraviolet (UV) light: that from 300 to 400 nm is called near-UV light, that from 200 to 300 nm is called deep-UV light, and that shorter than 200 nm is called vacuum-UV light. Since vacuum-UV is absorbed by air, deep-UV light is the shorte...
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ژورنال
عنوان ژورنال: HYBRIDS
سال: 1988
ISSN: 1884-1171,0914-2568
DOI: 10.5104/jiep1985.4.27