摘要:
Materials and methods are described for electroless deposition of cobalt phosphorus and cobalt tungsten phosphorus, employing tungsten trioxide or tungsten phosphoric acid as a source of tungsten. Electolessly deposited metals produced are substantially devoid of alkali metal ions and alkaline earth metal ions. The deposits are typically oxygen-free thin films having a low sheet resistivity of less than 50 nullnull.cm. The films may be used as capping layers or barriers for the prevention of interlayer metallic drift, diffusion and migration in semiconductor, ULSI, VLSI, electroplating industries and products.
摘要:
A power GaAs Schottky diode with a chemically deposited Ni barrier having a reverse breakdown voltage of 140 V, a forward voltage drop at 50 A/cm.sup.2 of 0.7 V at 23.degree. C., 0.5 V at 150.degree. C. and 0.3 V at 250.degree. C. and having a reverse leakage current density at -50 V of 0.1 .mu.A/cm.sup.2 at 23.degree. C. and 1 mA/cm.sup.2 at 150.degree. C. The high-voltage high-speed power Schottky semiconductor device is made by chemically depositing a nickel barrier electrode on a semiconductor which includes gallium arsenide and then etching the device to create side portions which are treated and protected to create the Schottky device.
摘要翻译:具有化学沉积的Ni屏障的功率GaAs肖特基二极管具有140V的反向击穿电压,在50℃下在50A / cm 2下的正向压降为0.7V,在23℃下为0.7V,在150℃为0.5V,在250℃为0.3V 在-50℃时的反向泄漏电流密度为0.1μA/ cm 2,在23℃和150mA时为1mA / cm 2。高电压高速功率肖特基半导体器件通过化学 在包括砷化镓的半导体上沉积镍阻挡电极,然后蚀刻该器件以产生经过处理和保护以产生肖特基器件的侧部。
摘要:
A laser beam waveguide particularly useful for transmitting infrared laser radiation includes a flexible, hollow plastic tube; a metal layer on the inner surface of the hollow plastic tube; a thin dielectric film on the inner surface of the metal layer; and a flexible layer over the outer surface of the hollow plastic tube capable of absorbing infrared radiation and preventing kinking of the hollow plastic tube.
摘要:
A method and filter particularly useful in greenhouses for optically filtering solar radiation by circulating an aqueous solution of copper salts with added chloride salts so that the chloride concentration is greater than 0.7 N to form a complex which has optical absorption properties stronger than free copper ions.
摘要:
There is provided the novel compound 19-hydroxyaldosterone. There is provided a process for its preparation. There are further provided pharmaceutical compositions comprising this compound as active ingredient. These are useful, amongst others, as mineralocorticoid drugs and as drug against Addison's disease.
摘要:
A method of identifying an existence, non-existence, type or state of a neurodegenerative disorder in an individual. The method is effected by (a) immunoreacting with a serum sample derived from the individual at least one peptide representing at least one epitope derived from an endogenous protein to which at least one antibody is produced in vivo at onset or during progression of the neurodegenerative disorder, the at least one peptide being selected such that the at least one antibody being capable of immunobinding with the at least one peptide; and (b) detecting a presence, absence or degree of the immunobinding to thereby identify the existence, non-existence, type or state of the neurodegenerative disorder.
摘要:
More than 90% of mutations found in the p53 protein produce a conformational change in p53 which results in the exposure of an epitope, which is otherwise hidden in the hydrophobic core of the molecule. A single chain antibody (scFv) which specifically recognizes this common mutant epitope in mutant p53 but not in wild type p53 is disclosed. Also described are a DNA molecule encoding the scFv, pharmaceutical compositions comprising the antibody and methods of treatment using the pharmaceutical compositions.
摘要:
A method and an electro-optical device are presented for affecting the propagation of input light impinging on the device. The electro-optical device is composed of at least one domain-patterned ferroelectric crystal structure with inverted domains, and an electrodes' arrangement on the surface of the at least one structure connected to a voltage source. When the input light is appropriately directed onto the electro-optical device, and voltage is appropriately applied to the electrodes, this causes at least one of the following effects: deflecting a light component of a predetermined wavelengths contained in the input light from the direction of propagation of the input light so as to direct this light component in a reflection output direction, while allowing the other light components to propagate in the direction of propagation of the input light; changing the phase of the input light in a wavelength-dependent manner; and separately controlling the wavelength-dependent transmission and dispersion for different polarizations of light.
摘要:
An optical switch for switching first and second input beams linearly polarized in the same direction which has a first half wave plate for rotating the polarization optically coupled to the second input beam, the first input beam and the output of the half wave plate input to a first polarization beam displacer which provides a combined beam, the output of which is connected to a controllable half wave gate which in a passive state passes the combined beam gate and in the active state passes the combined beamed rotated by 90 degree to an output Gate in dependence of a controlled signal input to the controllable wave gate. The output of the controllable wave gate is input to a second polarization beam displacer which refracts light into first and second refracted output beams displaced from each other a predetermined distance and a second half wave plate.
摘要:
A pharmaceutical composition comprising, in admixture with a pharmaceutically acceptable carrier, a therapeutically effective amount of a polyaromatic ring-containing compound, capable of mimicking the physiological activity of insulin or insulin-like growth factor.