Abstract: A method and apparatus for making a semiconductor device involves placing a semiconductor wafer in a position where two coherent light beams can interfere thereon. One of the coherent light beams is modulated by a hologram inserted in the path of the beam projected onto a surface of the semiconductor wafer. The other of the coherent light beams is also projected onto the same surface of the semiconductor wafer. The two interfering light beams form a pattern on a photoresist film found on the surface of the semiconductor wafer, which can be developed by photoresist techniques.

Abstract: Thermal recording material has a plate- or film-formed polymer blend layer which is in a mutually dissolved transparent state below a certain temperature and in a phase-separated opaque state above said temperature. This thermal recording material is employed in an image display device, which is provided, in succession, with a recording heater movable along the recording material, an image display unit, a uniform heater and a gradual cooler for image erasure.

Abstract: A low power electrical circuitry component is made from several laminae stacked one on top of the next; at least two of the laminae are provided with circuitry, suitably printed circuitry with electrical connections between circuit elements of the circuitry on one lamina interconnected with those elements of the next or subsequent such laminae by means of connections substantially perpendicular to the planes of the laminae; apertures or recesses may be formed in some of the laminae to provide holders for wafers and other circuitry items so that the laminae provide a strong frame and encapsulation for wafers and so on; ducts may be provided in or between laminae for cooling.

Abstract: A high-pressure rubber hose has a reinforcing layer embedded therein, has at least an outer layer thereof formed of the vulcanization product of an ethylene-propylene-diene copolymer rubber (hereinafter referred to as "EPDM" for short), and is adapted to be used as fastened by staking to a sleeved joint. The high-pressure rubber hose requires that the ethylene/.alpha.-olefin ratio (by weight) in the EPDM should fall in the range of 45/55 to 58/42 and that the Mooney viscosity of polymer (ML.sub.1+4 100.degree. C.) of the EPDM should fall in the range of 120 to 250. This high-pressure rubber hose manifests dynamic resistance to ozone and mechanical properties such as tensile strength to advantage without any sacrifice of the compression permanent set necessary for the sake of the sealing property.

Abstract: A polyolefin film having a base layer composed essentially of propylene polymers and having sealing layers present on both sides, composed essentially of sealable olefin polymers. Polydialkylsiloxane is incorporated in a first of the two sealing layers, and this layer is not subjected to corona treatment. The second sealing layer is subjected to corona treatment and has polydialkylsiloxane, not incorporated, but present on its outer surface, the polydialkylsiloxane having been transferred to this layer by contact with the sealing layer in which polyidalkylsiloxane is incorporated. The relative polydialkylsiloxane occupancy on the second layer, which is determined by means of ESCA spectroscopy, is not more than 15. The three-layer polyolefin film is prepared by a coextrusion process. It is particularly suitable for use as a packaging film on high-speed packaging machines.

Abstract: A deep-draw-formed vessel which is prepared by deep-draw-forming a laminate comprising a steel or iron foil and a plastic film formed on each surface of the steel or iron foil through a layer of an adhesive having an adhesive force of at least 600 g/15 mm of width and an elastic modulus of 50 to 10,000.A Kg/cm.sup.2 inorganic filler such as titanium dioxide is preferably incorporated in the plastic film so as to improve the deep-drawability.

Abstract: Light weight armor comprising lamina-like structures arranged with zones of decreasing Young's modulus and increasing elongation characteristics. The structure contains at least one composite having fibers arranged to dissipate impact forces laterally.

Abstract: Improved printing with polymers is achieved by interposing a liquid layer conforming to rough substrate surfaces and possibly exhibiting different characteristics from an outer surface polymer layer. This is particularly advantageous in printed wiring board (PWB) manufacture requiring solder mask coating. Thus, a two layer composite polymer coating is provided. One inner adhesive photopolymer layer is applied to the PWB in the liquid state, displacing air from PWB surface. The outer layer of the composite therefore can be epoxy, dry film or liquid polymer. Dry film thus carried on a thin plastic sheet may be overlaminated onto a liquid inner layer already on the substrate, without the need for a vacuum laminator to eliminate bubbles or a plasticizing heat step to conform the dry film to the surface.

Abstract: A semiconductor wafer one side of which has been coated with an ultraviolet sensitive material is exposed to light radiated from a rare gas-mercury discharge lamp. A rare gas-mercury discharge lamp filled with a rare gas such as xenon and mercury as principal luminous components thereof and capable of radiating light having the maximum peak wavelength at 365 nm is used as the lamp, and the coated side of the wafer is exposed, through a lens system having a high transmittance for light having a wavelength of 365 nm and a photomask, to the light radiated from the lamp so as to print a reduced image of the mask pattern on the coated side of the wafer. Use of the above-described rare gas-mercury discharge lamp allows to print a highly-integrated pattern having a narrow linewidth efficiently and in shorter exposure time owing to its high radiation intensity at 365 nm.

Abstract: An improved resistive element comprises a film-type resistive layer applied to an insulative substrate and then fired. An array of discrete, spaced apart islands of predominantly conductive material is then applied to the resistive layer in a repetitive pattern having predetermined inter-island spacing. The islands have a conductivity that is substantially greater than the conductivity of the resistive layer. Preferably, the islands are of substantially uniform shape and size. In one preferred embodiment, the islands are formed of a conductive thick film ink that is screen-printed onto a cermet resistive layer through an appropriate mask, and then fired. In another preferred embodiment, the islands are formed of a conductive metal that is applied to the resistive layer by vapor deposition, sputtering, or ion implantation through a suitable mask.

Abstract: There is disclosed an electrophorectic display apparatus which includes a planar transparent member having disposed on a surface a plurality of vertical conductive lines to form a grid of lines in the Y direction. On top of the grid of vertical lines there is disposed a plurality of horizontal lines which are positioned above the vertical lines and insulated therefrom by a thin insulating layer at each of the intersection points. Spaced above the horizontal and vertical line pattern is a conductive plate. The spacing between the conductive plate and the X and Y line patterns is filled with an electrophoretic dispersion containing chargeable dye articles. When a voltage is impressed between the X and Y lines, dye pigment particles which are located in wells or depressions between the X and Y pattern are caused to migrate towards the conductive plate and are deposited upon the conductive layer in accordance with the bias applied to the X and Y line conductors.

Abstract: A partially devitrified porcelain enamel composition is formed by melting an oxide mixture in which 20-50 wt % BaO, 30-60 wt % SiO.sub.2, and 2-20 wt % TiO.sub.2 are present to form a homogeneous melt, quenching the melt to form a frit and firing the frit. The oxide mixture may optionally include K.sub.2 O, Na.sub.2 O, Li.sub.2 O, Al.sub.2 O.sub.3, B.sub.2 O.sub.3, As.sub.2 O.sub.3, CaO, CeO.sub.2, MgO, F.sub.2, N.sub.2 O.sub.5, PbO, P.sub.2 O.sub.5, Sb.sub.2 O.sub.3, SnO.sub.2, SrO, ZnO, ZrO.sub.2, and MoO.sub.3. Metal substrates coated with such a partially devitrified porcelain enamel composition are particularly suitable for the production of electronic circuits.

Abstract: A method for manufacturing an optical disk having both address pits and guide grooves having accurately controlled depths and widths. Two different types of sensitive materials of different characteristics are applied to a recording original board to form inner and outer layers thereon. The inner and outer layers are exposed and partially removed independently of each other so that the depth and width of the guide grooves and address pits can be set to desired values with high accuracy.

Abstract: Patterned glass layers which are defect-free and have smooth surfaces are formed by a method wherein a mixture of glass frit and a photoresist composition is applied to the surface of the substrate; the layer is photolithographically patterned by exposing and developing predetermined areas of the layer; then after development and prior to firing of the glass frit, the layer of material is subjected to treatment with a suitable plasma at a temperature below the thermal decomposition temperature of the photoresist composition to remove the photoresist composition from the portion of the resist layer remaining on the substrate; and then the remainder of the layer, consisting essentially of glass frit, is fired to form a smooth, defect-free, patterned glass layer over the surface of the substrate.

Abstract: A refractory sheathing (1) of incombustible, compressed, flat insulating bodies (8) made of mineral or ceramic fiber for thermally insulating pipes (10) in preheating furnaces fired from below in the steel industry is described. The insulating bodies (8) have an inner and, if desired, also an outer arc-shaped profile, they enclose the pipes (10) to be insulated totally or almost totally in circumferential direction, and they are secured at the pipe in close mutual abutment by at least two retainers which engage the ends of a plurality of adjacent insulating bodies (8) forming a stack of insulating bodies. The risk of separating from the pipe during the constant vibrations of the same is reduced and the space requirement for installation at the building site as well as the cost of mounting involved are scaled down by the line-up of a plurality of insulating bodies (8) on a plurality of spaced apart rods (11) to form a highly compressed insulating body stack.

Abstract: This invention relates to flat stock fibrous cellulosic food casings containing a low plasticizer level of between about 10 wt. % and about 17 wt. %, including at least about 9 wt. % polyol, both based upon the bone dry weight of cellulose in the casing, together with a method of making the casing.

Abstract: A shrinkable cable sleeve which is composed of a shrinkable envelope having a meltable inside layer and an inner cable insert. The inner cable insert is composed of a plurality of layers, wherein one layer is activatable by the application of heat, and the plurality of layers includes a basic foil layer and reinforcing elements which may be in a separate layer or embedded in the activatable layer. During assembly, a pressure tight cable sleeve will be produced by fusing the two activatable layers together.

Abstract: The invention is a concurrently sintered and cross-linked ram extruded product formed by a mixture of an ultra high molecular weight polyethylene powder with a cross-linking agent, an electrically conductive agent and a lubricant. As little as 0.5 parts per 100 parts of polyethylene of the electrically conductive agent added to the ultra high molecular weight polyethylene powder coats the power to provide adequate conductivity without adversely affecting the mechanical properties of the product.

Abstract: An insecticidal and fungicidal composition comprising (1) An insecticidally effective amount of a nitromethylene derivative of the formula ##STR1## in which X is a lower alkyl group, a lower alkoxy group, or a halogen atom,n is 0, 1 or 2 andm is 2 or 3,and a fungicidally effective amount of at least one fungicide selected from the group consisting of(2) O-ethyl S,S-diphenyl phosphorodithioate,(3) 4,5,6,7-tetrachlorophthalide,(4) 1-(4-chlorobenzyl)-1-cyclopentyl-3-phenylurea,(5) Validamycin A, 3'-iso-propoxy-2-methylbenzenilide, o-trifluoromethyl-m'-isopropoxybenzoylanilide or 6-(3,5-dichloro-4-methylphenyl-3(2H)pyridazinone, and(6) di-isopropyl-1,3-dithiolan-2-ylidenemalonate, 5-methyl-1,2,4-triazo[3,4-b]-benzothiazole, 3-allyloxy-1,2-benzisothiazole 1,1-dioxide, and 1,2,5,6-tetrahydro-4H-pyrrolo-[3,2,1-i,j]quinolin-4-one, [5-amino-2-methyl-6-(2,3,4,5,6-pentahydroxycyclohexyloxy)tetrahydropyran-3 -yl]amino-.alpha.-iminoacetic acid or S-benzyl diisopropylphosphorothiolate.

Abstract: A novel MOS transistor structure comprises electrodes of metallic silicide and especially tantalum silicide. In the case of the gate electrode, the silicide is directly in contact with an insulating thin-film layer. In the case of the drain and source electrodes, the silicide is directly in contact with the monocrystalline silicon. The method of fabrication is thus simplified while avoiding the use of polycrystalline silicon.