Abstract: A photomask useful as stencil or reticle comprises a thin layer, which includes regions of different optical transmissivity for light radiation of a predetermined spectral range. The layer consists of silicon or any other suitable semiconductor material, and the regions of different transmissivity consist essentially of the monocrystalline or amorphous phase of the mask material. The photomask may be manufactured by irradiating a thin layer of monocrystalline silicon with a focussed ion beam to convert the silicon within the irradiated regions into the amorphous phase.

Abstract: A strippable film for adhesive coating and laminating comprising:a base paper, andan extrusion coated thermoplastic resin layer, wherein said film has the property that upon coating an adhesive onto said resin layer and assembling the adhesive coated strippable film with a base member, said base paper can be stripped from said resin layer and said resin layer can be subsequently stripped from said adhesive coating.

Abstract: A strain relief system for flexible circuits has a tapered cover laminate affixed to either side of the flexible circuit to form a cover laminate/flexible circuit assembly, with the widest portion of the cover laminate being at the point of maximum bending stress of the flexible circuit to provide a stiffer assembly at that point. A rigid stiffener having a bending radius also is affixed to either side of the cover laminate/flexible circuit assembly at the point of maximum bending stress to provide strain relief, the bending radii being laterally offset from each other so that bending in opposite directions occurs at different locations of the flexible circuit. The result is a gentle, low stress bend in the flexible circuit when subjected to regular bending.

Abstract: An optical reading device with the least cross-talk and good reading resolution, which is constructed with a plurality of metal electrodes disposed on an insulating base plate in a spaced apart relationship for each bit, a photoconductive film provided on the plurality of metal electrodes, and a transparent electrically conductive film disposed in confrontation to the plurality of metal electrodes, wherein the photoconductive film possesses high resistance value at least at the side thereof facing the metal electrode, the transparent electrically conductive film and the photoconductive film are cut out at their portions corresponding to a positional space between adjacent metal electrodes, and the photoconductive film does not substantially protrude from the transparent electrically conductive film at a portion where the transparent electrically conductive film confronts to each of the metal electrodes.

Abstract: Semiconductor dopant sources are prepared by mixing particles of elemental silicon and at least one dopant oxide and heating the mixture to a temperature sufficient to initiate a reduction reaction while excluding external oxygen sources from affecting the reaction. The reaction can be initiated in a furnace, provided the gaseous ambient is controlled, or can be initiated in air if the mixture is heated sufficiently rapidly, e.g. by heating with electromagnetic energy at microwave frequencies. The dopant source produced includes a fused, amorphous matrix of silicon-oxygen-dopant atoms containing inclusions of elemental dopant and, preferably, inclusions of elemental silicon. Embodiments of sources prepared from antimony trioxide slowly evolve antimony, have a long life and repeatedly and predictably dope silicon at commerically useful levels.

Abstract: A multi-layer electroluminescent element so constructed that the overlapping area between a second voltage applying electrode and a transparent conductive layer is larger than the overlapping area between a first voltage applying electrode and the transparent conductive layer, a further decrease of the driving voltage is possible.

Abstract: A solid polymeric body comprising a polymer matrix containing a water-soluble reagent leachable into a fluid containing condensed water, said matrix being reagent permeative and insoluble in said fluid containing condensed water and the said body preferably having a softening point substantially above that of the temperature of the fluid environment in which it is to be employed is useful for the introduction of an additive reagent into said fluid particularly when said fluid is located in a subterranean formation.

Abstract: A structure and method for fabricating the structure, which includes a layer containing a refractory metal and a substrate to which the refractory metal-containing layer does not strongly adhere, there being a thin bonding layer between the substrate and the refractory metal-containing layer for providing good adherence between the refractory metal-containing layer and the substrate. The bonding layer is an oxide, nitride or mixed oxy-nitride layer initially prepared to be Si-rich in a surface region thereof. Inclusions of the refractory metal are produced in the bonding layer by substituting the refractory metal for excess free silicon therein. These inclusions become nucleation and bonding sites for refractory metal deposition, ensuring good adhesion.

Abstract: A composition useful as the core of fire resistant gypsum board and comprising a major amount of set calcined gypsum and minor amounts of whisker fibers, glass fibers and clay.

Abstract: An electroluminescent device is disclosed comprising in sequence, an anode, an organic hole injecting and transporting zone, an organic electron injecting and transporting zone, and a cathode. The organic hole injecting and transporting zone is comprised of a layer in contact with the anode containing a hole injecting porphyrinic compound and a layer containing a hole transporting aromatic tertiary amine interposed between the hole injecting layer and the electron injecting and transporting zone.

Abstract: Electronic parts comprising ceramic substrate and electrode layer provided onto the substrate in which a micro-granular ceramic powder is dispersed substantially only inside of the electrode layer. A process for the manufacture of the same is also disclosed.

Abstract: Transparent sheet capable of receiving oil-based inks from impact ink transfer printers that use fabric ribbons.The sheet of this invention is non-tacky, and comprises a backing bearing on at least one major surface thereof an ink-receptive layer, capable of receiving oil-based ink from a fabric ribbon, said layer comprising a polymeric material having a Hansen dispersion parameter from about 10 to about 20 J.sup.1/2 /cm.sup.3/2, a Hansen dipole parameter of less than about 6 J.sup.1/2 /cm.sup.3/2, and a Hansen hydrogen bonding parameter from about 8 to about 20 J.sup.1/2 /cm.sup.3/2. The ink-receptive layer can also contain particulate material.

Abstract: A gaseous composition sensor which is a microstructure device comprising a heated planar thin film diaphragm sensor member suspended over a shallow flat bottomed etched pit in a single crystal silicon substrate.