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Showing 1 to 15 of 15 for “"Bcl3"”.
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ELECTROSTATIC (LANGMUIR) PROBE MEASUREMENTS IN RF DRIVEN He, N2, BCl3, AND BCl3/N2 PLASMAS
… to measure the electron density distribution in BCl3/N2 mixtures to determine if an average electron energy increase might be partially responsible for the previously observed etch rate enhancement of GaAs with nitrogen addition. The system was validated in both helium and nitrogen plasmas. Probe …
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CHARACTERIZATION OF BCl₃, SF₆, and BCl₃/SF₆ PLASMAS USING LANGMUIR PROBE MEASUREMENTS
A Langmuir probe study in BCl3, SF6, and mixtures of BCl3/SF6 capacitively-coupled plasmas is presented. In this study, energy distribution functions, electron temperatures (and average electron energy) and electron, positive ion, and negative ion densities were determined as a function of process …
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Neue Carborane aus CB 2 -, CB 3 - und C 2 B 2 -Organoboranen
… Umsetzung von 3,3-Dimethyl-1-butinyllithium mit BCl3 und anschließender doppelten Hydroborierung mit HBCl2 führt zu 1,1,1-Tris(dichlorboryl)-3,3-dimethylbutan, dessen Catecholderivat strukturell untersucht ist. Bei der analogen Reaktion ausgehend von Trimethylsilylacetylid erhält man ein …
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Design and fabrication of a single-layer guided mode resonance grating transmission filter
… to etch the thin film, starting with Cl2 and BCl3 only. The etch was found to be too fast and isotropic, so a O2 was added to dilute the etch gasses. However, this resulted in undesirable micro masking, so a BCl3, Cl2, H2 and CH4 mixture was used, which was found to have the slowest etch rate …
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Inductively Coupled Plasma Etching of III-N Semiconductors
… gas composition. The use of a mixture of 2 sccm BCl3 and 18 sccm Cl2 resulted in a maximum etch rate of 2.2 microns/min for GaN as well as nearly vertical sidewalls with proper masking. A selectivity value, i.e. the ratio of the etch rates between two materials, as high as 48 was achieved between …
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An investigation into the role of Bcl-3 in toll-like receptor signalling
… regulation of TLR signalling is investigated. Bcl3-/- mice and cells are hyper responsive to TLR stimulation and are defective in LPS tolerance. Bcl-3 interacts with and blocks the ubiquitination of homodimers of the NF-κB subunit, p50. Through stabilisation of inhibitory p50 homodimers, Bcl-3 …
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Studies of the cationic polymerisation of vinylic and energetic cyclic ether monomers
… have been prepared using the diphenyl phosphate/BCl3 initiator. These systems and monomers are expected to be used in the synthesis of thermoplastic elastomers.
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Halogen-, Azid- und Koordinationsverbindungen des Phosphors
… von BX3 (X = Cl, Br, I) in der Reihenfolge BCl3 < BBr3 < BI3 ansteigt. So bildet die schwache Lewis-Säure BCl3 nur noch mit starken Phosphor-Basen wie Alkyl- oder Arylphosphinen stabile Komplexe. Bezüglich der Stabilität der Reaktionsprodukte konnte für die BX3-Addukte (X = Br, I) sowohl …
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Three-dimensional field-effect transistors with top-down and bottom-up nanowire-array channels
… transistor. The Ga2O3 NW-arrays were formed by BCl3 plasma etching. A new wrap-gate transistor demonstrates normally-off (enhancement-mode) operation with a high breakdown voltage exceeding 600 V which is superior to any transistor using a 3D channel.
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Oligomere und hochenergetische Borazide sowie elektrophile N+−F-Fluorierungsmittel
… durch Reaktion von (RF)2SnMe2 (17, 18) mit BCl3 erhalten. Dabei konnte gezeigt werden, daß (2,6-F2C6H3)2BN3 (23) wie 11a im Festkörper als Dimer vorliegt. Aufgrund von ramanspektroskopischen Untersuchungen, wurde auch für 2,6-F2C6H3B(N3)2 (26) eine oligomere Struktur vorausgesagt. Im …
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Reaktivität silylierter und stannylierter π-Systeme
… mit der im Überschuss vorhandenen Lewis-Säure (BCl3) beobachtet. Es wurden NMR-spektroskopische Untersuchungen zur Bestimmung der Geschwindigkeit dieser Borodesilylierungsreaktion durchgeführt. 4. Die Reaktivität von silylierten Phenylacetylenen wurde am Beispiel der trialkylsilyl- …
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The Use of Functionalized Zirconocenes as Precursors to Silica-Supported Zirconocene Olefin Polymerization Catalysts
… (B). The reaction of B with BCl3 led to incomplete cleavage of the Ph-Si bonds, however treatment of B with BBr3 afforded (h5-Br2MeSi-C5H4)2ZrBr2 (C) efficiently. The Sn-X bonds of the stannylated metallocenes were however relatively unreactive toward water and were excluded …
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Liganden des Benzodiazepin-Rezeptors: Studien über Benzodiazepine in pflanzlichen Geweben sowie über Hispidulin
… und der labilen C-5-Methylgruppe mit 1 M BCl3-Lösung bei etwa –70 °C behandelt worden ist. Mit dem chemisch synthetisierten Hispidulin erfolgten Studien zu dessen pharmakologischen Eigenschaften an rekombinanten GABAA-Rezeptoren im Xenopus laevis Oozyte-Modell. Hispidulin zeigte an allen …
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Novel etch studies and passivation techniques on InAs/GaSb superlattice based infrared detectors
… FPA detectors obtained after (a) a conventional BCl3 gas based inductively coupled plasma dry etch, (b) a HCl: H2O2:H2O (1:1:4) solution wet chemical etch and (c) combination of both. It was found that HCl: H2O2:H2O (1:1:4) solution based wet etch was ideal for single pixel mesa delineation, but …