Abstract:
A coated tool for warm-and/or-hot working with a superior galling resistance property and a superior wear resistance, comprising: a base material selected from the group consisting of a hot die steel and a high speed steel; and a coating as a working surface, the coating having: a layer “a” provided on said base material, the layer “a” being made of at least one kind selected from the group consisting of a nitride, a carbide and a carbonitride, each of which contains as the main constituent thereof at least one metal element selected from the group consisting of Ti, V, Cr, Al and Si; and a layer “b” provided on the layer “a”, the layer “b” being made of a sulfide.
Abstract:
A semiconductor memory device comprising: a first insulating film covering the upper and side surfaces of a gate electrode; a second insulating film formed on the substrate covering the first insulating film; a pair of contact holes formed through the second insulating film and reaching the impurity diffusion regions; a conductive plug embedded in one of the contact holes; a third insulating film formed on the second insulating film covering the conductive plug, and having a first aperture on the other contact hole; a bit line formed on the third insulating film and connected to the other impurity diffusion region through the first aperture and the other contact hole; a fourth insulating film covering the upper and side surfaces of the bit line; a second aperture formed through the third insulating film in alignment with the fourth insulating film covering the side surface of the bit line; a storage electrode formed to extend over the bit line, insulated from the bit line by the third and fourth insulating films, and electrically connected to the conductive plug through the second aperture.
Abstract:
The invention provides a piston ring and piston ring material with excellent properties since not only it has excellent properties as a piston ring, but also excellent in drawability and rolling workability in the manufacturing process of stock, very excellent bending workability can be attained even when relatively high hardness after heat treatment is established, and excellent in properties as a piston ring. The piston ring material essentially consists, by weight of 0.2 to 1.2% C, 5.0 to 25.0% Cr and the balance Fe and incidental impurities, M7C3 type carbide content existing in the structure being 4.0% or less in terms of area percent to attain excellent scuffing resistance and workability. Preferably, C is 0.2 to 0.7%, and Cr is not less than 5.0% but less than 12.0%. Cr (wt. %)/C (wt. %) is 12 to 45, preferably 15 to 45, more preferably 18 to 30. In addition, the piston ring material of the present invention may contain not more than 0.25% Si, not more than 0.30% Mn, at least one not more than 2.5% in total selected from the group consisting of Mo, W, V and Nb, not more than 4.0% Cu, not more than 2.0% Ni, not more than 1.5% Al.
Abstract:
A back light device for a liquid crystal display is provided, which comprises diffusing prisms formed on the surface of the light guide plate, and the apical angle of the diffusing prism is set in the range of 65-85 degrees for a uniform and brighter illumination using the same light source.
Abstract:
A method of manufacturing a semiconductor device which has the steps of: forming an insulated gate field effect transistor of a first conductivity type on a semiconductor substrate,; forming a first insulating film over the semiconductor substrate, the first insulating film covering the insulated gate electrode; forming a contact window through the first insulating film to at least one of the source/drain regions; embedding a metal plug in the contact window; forming a second insulating film having an oxygen blocking function on the first insulating film, the second insulating film covering the metal plug; forming a capacitor lower electrode on the second insulating film; forming a dielectric oxide film having a perovskite crystal structure on the lower electrode; annealing the semiconductor substrate in an oxygen-containing atmosphere; and forming a capacitor upper electrode on the dielectric oxide film. A semiconductor device can be realized which has capacitors with dielectric oxide films of a perovskite crystal structure having a high dielectric constant.
Abstract:
An X-ray analytical apparatus of a wavelength dispersion type having a construction of essential parts improved using a microprobe of ion beam. An ion beam 10 is controlled to be deflected to scan in a fine region of a sample 3, a characteristic X-ray generated by irradiation of the ion beam is subjected spectro-process by a analyzing element 5 set to a predetermined radius of curvature by a curvature changing mechanism, and an X-ray having a specific wavelength selected by the spectro-process is detected by a proportional counter 7. When an angle of the analyzing element is set by a rotational stage to an incident angle of a specific X-ray determined by a detection element on the sample 3, a wide range of wavelength can be subjected to spectro-measured while the sample 3, the analyzing element 5 and the proportional counter 7 remain fixed in position. Since the proportional counter 7 is provided with a lengthy sensing portion, even if an incident position of the X-ray is changed, measurement can be made while a position of a detector remains fixed. Being a position sensitive type detector, incident position information of the X-ray different according to the wavelength can be removed, and the wavelength and strength of the X-ray can be measured while discriminating each X-ray quantum.
Abstract:
A silver halide photographic light-sensitive material comprising a support bearing on both sides thereof a silver halide emulsion layer containing a silver halide emulsion comprising monodispersed and spectrally-sensitized silver halide tabular grains having an average aspect ratio of grain diameter to grain thickness of from not less than 2 to less than 8 and accounting for at least 70% of the total projected area of the grains contained in the silver halide emulsion and a method of preparing the silver halide emulsion are disclosed, wherein the silver halide emulsion is chemically sensitized in the presence of iodide-containing silver halide fine grains, thus chemically-sensitized emulsion having a value of 100 mV or less with respect to a silver electrode potential at 50.degree. C.
Abstract:
Another object is to enable different types of control instructions to coexist, wherein an address converter table is used to rapidly shift addresses in a memory without adversely affecting other operations. A method of controlling a manufacturing line using a central processing unit, wherein the various addresses in a memory are rapidly shifted using an address converter table so that different types of control instructions, such as compiler and interpreter languages, can coexist without any adverse affects. The method enables utilization of a high speed CPU and low speed I/O devices.
Abstract:
A graphic display system comprising a plurality of graphic display units which are connected to a host processor through a common bus and providing useful quick response characteristics as a man-machine interface for process control, wherein a common memory of two ports, one of which is connected to the common bus and the other is connected to an internal bus, is provided in each graphic display unit and a part of the common memory is used for transmission of high level command/data with the host processor and comprises a FIFO (i.e. first in first out) buffer.
Abstract:
A cassette tape recording and/or reproducing apparatus capable of selectively loading at least two tape cassettes whose respective spaces between reels differ from each other, has a pair of reel bases moved to be made to coincide with either of the spaces between the reels, a pair of position reference pins used in common to put either of the two tape cassettes in a horizontally and vertically exact position, and a pair of height reference pins moved together with the pair of reel bases to put either of the two tape cassettes in a vertically exact position, so that the bottom face, the front face and the central plane equidistant from a pair of reels of the cassette are exactly put in respective predetermined normal face or plane positions.