Abstract: In an automatic printing plate exposure device, when temporarily positioning a printing plate, a position of the printing plate in a temporary direction is determined by the printing plate abutting a pair of positioning pins. When actually positioning the printing plate in an exposure section, a position of the printing plate in an actual direction is determined by the printing plate abutting a pair of positioning pins. An angle of inclination in the temporary direction with respect to a front is set smaller than an angle of inclination in the actual direction. When positioning the printing plate, a position at which the printing plate abuts the pair of positioning pins and a reference pin, and a position at which the printing plate abuts the pair of positioning pins and the reference pin at a time of positioning in the exposure section, substantially coincide.

Abstract: A high-efficiency printing apparatus, a printing system, a print control method, and a storage medium require an extremely small-capacity receiving buffer memory of a printing apparatus and put an extremely small burden on a host apparatus. A PC has an IEEE 1394 interface section for communicating with a printer, a memory that can be accessed by a printer and that stores text data, and a CPU that provides the printer with an information block that includes address information of text data. The printer has an IEEE 1394 interface section for communicating with the PC, a printing section for printing on a recording medium, and a CPU that reads text data stored in the memory of the PC on the basis of an address of the information block that includes the address information of the text data provided by the PC, and causes the printing section to perform printing.

Abstract: Method for producing unobtrusive ornamental visual effects for design configurations and point of reference patterns which enhance the aesthetics and functional criteria of paper and other printable substrates.

Abstract: A method for controlling a quantity of medium transferable from a screen roller of a printing machine onto a roller that is in contact with the screen roller includes exerting an influence upon a difference in circumferential speed between the screen roller and the roller in contact therewith, and further includes controlling the difference in the circumferential speed as a function of the printing speed of the printing machine, so that printed medium density remains at least approximately constant at least within a wide printing speed range.

Abstract: A printing apparatus has a take-out shaft and a rolling-up shaft to supply an intermediate transfer ribbon provided with a transfer layer having a first area in a prescribed pattern and a blank and transparent second area, a printer portion to print prescribed data on the transfer layer of the supplied intermediate transfer ribbon, and a transfer portion to transferr the printed prescribed data on an image receiving medium (a passbook) 1 jointly with the transfer layer. The printer portion and the transfer portion are controlled independently in a first mode to cover the entire image receiving medium and in a second mode to cover the image receiving medium by the first area and the second areas.

Abstract: When a movement of a film-like printing body is stopped for a longer time than the normal time because of generation of trouble or the like, heat of hot plates for full heating is prevented from being transmitted to the film-like printing body. All of the hot plates (3, 4, 5, 6, 7, 8) for preheating and full heating are moved downward, and a warp inhibiting body (27) is moved upward. Further, a shutter (34) for shutting off heat is inserted between the film-like printing body (2) and the full heating hot plates (6, 7). Further, at this time, a cold blast is blown to the shutter (34) for shutting off the heat.

Abstract: A frequency addressable ignitor control device utilizes electronic bandpass filters tuned to a unique center frequency and bandwidth for each ignitor. Energy generated by the system's controller comprises one or more narrow pulses whose center frequency corresponds to one or more bandpass filter/ignitor assemblies and sufficient energy for activation. A plurality of bandpass filter/ignitor assemblies are connected in parallel in the system. The controller generates electrical pulses of different frequencies transferred to the plurality of bandpass filter/ignitor assemblies via a two wire ignitor bus. Bandpass filter/ignitor assemblies whose filter allows sufficient energy to pass to an ignitor bridge element initiates the ignitor's explosive charge. The controller generates energy to the ignitor with appropriate sequence of frequencies and delays resulting in the desired detonation of appropriate individual bandpass filter/ignitor assemblies in the desired sequential order each with the desired delays.

Abstract: A frequency addressable ignitor control device utilizes electronic bandpass filters tuned to a unique center frequency and bandwidth for each ignitor. Energy generated by the system's controller comprises one or more narrow pulses whose center frequency corresponds to one or more bandpass filter/ignitor assemblies and sufficient energy for activation. A plurality of bandpass filter/ignitor assemblies are connected in parallel in the system. The controller generates electrical pulses of different frequencies transferred to the plurality of bandpass filter/ignitor assemblies via a two wire ignitor bus. Bandpass filter/ignitor assemblies whose filter allows sufficient energy to pass to an ignitor bridge element initiates the ignitor's explosive charge. The controller generates energy to the ignitor with appropriate sequence of frequencies and delays resulting in the desired detonation of appropriate individual bandpass filter/ignitor assemblies in the desired sequential order each with the desired delays.

Abstract: Disclosed is a pyrotechnic initiator header having a center pin with a circumferential notch retention feature that enhances secure and effective disposition of an ignition pyrotechnic charge droplet to the header in the area of the bridgewire.

Abstract: Device with combustible charge with smoke-generating, tear-generating or signaling effects, which comprises a casing (1) housing a series of charges (2) traversed by an ignition cord (16), which casing is closed by means of a cover (3) which delimits an inner chamber (25) and carries a fuse (18). Between the charges (2) and the end wall (6) of the casing (1) there is a spacer (7′) which defines a chamber (8), between said end wall (6) and the nearest charge (2), and which may consist of a cylindrical wall, inside which are housed one or more parachutes (26), to each of which a charge (2) is connected.

Abstract: A machine for continuously removing old ties of a railroad track supported on a ballast bed includes a machine frame extending in a longitudinal direction along the track. Undercarriages support the machine frame for mobility in an operating direction. An apparatus for picking up old ties from the ballast bed is mounted on the machine frame, and a conveyor device for transporting away the picked-up old ties in the longitudinal direction is associated with said apparatus. A tie displacement device having a pushing member is positioned ahead of—with regard to the operating direction—the apparatus for picking up old ties. Drives are, provided for adjusting the pushing member vertically and transversely to the longitudinal direction in order to push an old tie laterally out of the track and onto a ballast bed shoulder.

Abstract: The present invention a material handling turntable comprises a turntable including a top for receiving a load thereon and a bottom. The turntable further includes a motor and gear set for driving said turntable in circular motion and also includes a low friction disc slidably receiving said bottom of said turntable thereon. Preferably the turntable is assembled from multiple pie sections fastened to each other wherein each pie section including a lattice work type frame with the bottom of each frame member defining a bottom load bearing surfaces making sliding contact with said low friction disc.

Abstract: A front end portion 100 is disposed on the front end of a car body. The floor thereof consists of hollow shape members 200 that construct a shock absorber 200. The shock absorber 200 includes an upper shock absorber 200 and a lower shock absorber 200. Annealed hollow shape members are used to form the hollow shape member 210. The hollow shape members 210 have their longitudinal directions disposed along the longitudinal directions of the car body. Plural hollow shape members 210 are arranged next to one another in the width direction, and bonded together by friction stir welding. When the hollow shape members receive impact load, the members 210 deform into an accordion-like shape, absorbing the impact force. At this time, the friction stir welded portions also receive the impact force, but dislike other weld joints, cracks are not created at the friction-stir-weld joints, and the weld joints do not prevent the hollow shape members 210 from deforming into an accordion-like shape.

Abstract: Upon forming a railway car composed of plural hollow shape members 40, annealed hollow shape members are used to form the ends of an underframe 30. The hollow shape members 40 are disposed so that their longitudinal orientation equals the longitudinal direction of the car body. The underframe 30 is formed by disposing plural hollow shape members 40 adjacent one another in the width direction and welding them together by friction stir welding. When the hollow shape members receive impact load, the ends of the members deform into concertinas, thereby absorbing the impact force. At this time, the friction stir welded portions also receive the impact force, but cracks are not created at the friction-stir-weld joints, and the weld joints do not prevent the hollow shape members from deforming into concertinas.

Abstract: A hanger bar assembly for sliding doors used in transit cars has at least two separate coaxially oriented, preferably tubular bearing segments which can slidingly engage a cylindrical rod secured above an entry portal of a transit car. Each bearing segment contains bearing means such as a ball bushing bearing. The tubular bearing segments can be secured to a hanger bar at selected locations, taking into consideration such factors as the location of door hanger support points above an entry portal of the transit car, the location where the sliding door interfaces with an adjacent sliding door, the horizontal width of the door, and the distance that the door must travel along the cylindrical rod. Each of the bearing segments can be sealed at either end to reduce the likelihood of dirt and other contaminants entering the bearing segments.

Abstract: This invention relates to entranceway designs, covering doors, steps, and other components; and car design and seating arrangements for passenger transport vehicles. In particular, the present inventive entranceway and access arrangement subject matter are especially applicable to railroad cars for rail lines which serve both high and low level station platforms. The present inventive seating arrangement subject matter is especially applicable to passenger transport vehicles having overhead clearance restrictions, such as railroad cars.

Abstract: Disclosed is a black ink set comprising a plurality of black ink compositions, wherein the plurality of black ink compositions each comprise carbon black, a magenta pigment, and a cyan pigment as colorants, and the plurality of black ink compositions are different from each other in content of carbon black, and the content of the magenta pigment and the content of the cyan pigment are such that all the plurality of black ink compositions have a chroma C* value of not more than 3. This ink set can realize black images possessing excellent gradation.

Abstract: The present invention relates to a solid marking composition as writing means in a writing instrument. The solid, marking composition comprises a solid matrix containing at least one type of optically variable interference pigment flakes. The solid marking composition provides a document or article with a copy and counterfeit protection feature, and is preferably used in a writing instrument for applying hand-written anti-counterfeit markings and signatures.

Abstract: A fluorescent marking stain for marking items is formulated from a resin present in a concentration of about 1 percent to about 5 percent of the stain, an active solvent for and compatible with the resin present in a concentration of about 40 percent to about 50 percent of the stain, a dye solvent present in a concentration of about 20 percent to about 30 percent of the stain, a diluent present in a concentration of about 10 percent to about 20 percent of the stain, an adhesion promoter present in a concentration of about 1 percent to about 5 percent of the stain, an optical brightener present in a concentration of about 1 percent to about 5 percent of the stain and a fluorescent dye present in a concentration of about 0.2 percent to about 5 percent of the stain. A marking pen for use with the marking stain is also disclosed.

Abstract: An ink jet ink composition of water, a humectant, and a hyperbranched polymeric dye of a hyperbranched polymer having a dye chromophore pendant on the polymer chain or incorporated into the polymer backbone.

Abstract: A liquid aluminum stop leak usable in aluminum radiators, aluminum engine blocks, and aluminum heat transfer systems for stopping leaks of coolant therefrom. A liquid aluminum stop leak comprising: water; a preservative; CH2OH; cellulose; polyester; aluminum flakes; a compound for maintaining a suspension, and compounds for adjusting the pH level of the blend. The liquid aluminum stop leak is compatible with aluminum cooling systems preventing galvanic decay.

Abstract: The present invention provides a method for preparing a glass-ceramic containing leucite crystals, comprising the steps of: mixing (1) a glassy material comprising 53 to 65 wt. % of SiO2, 13 to 23 wt. % of Al2O3, 9 to 20 wt. % of K2O and 6 to 12 wt. % of Na2O and (2) synthetic leucite seed crystals comprising 53 to 64 wt. % of SiO2, 19 to 27 wt. % of Al2O3 and 17 to 25 wt. % of K20, and heat-treating the mixture at 750 to 950° C. for 1 to 5 hours; and a dental porcelain powder and a metal-ceramic restoration both comprising a glass-ceramic prepared by the method. The porcelain comprising the glass-ceramic prepared by the method is substantially free of opacification and decrease in the coefficient of thermal expansion, during fusion-bonding to a metal frame.

Abstract: A colorant for ink-jet printing ink of the present invention, has an average particle diameter of 0.001 to 0.15 &mgr;m, and comprises: extender pigments as core particles; a gluing agent coating layer formed on at least a part of surface of said core particle; and an organic pigment coat uniformly formed on at least a part of said gluing agent coating layer. The colorant for ink-jet printing ink exhibits not only a high tinting strength and a clear hue, but also excellent dispersibility and light resistance in spite of fine particles.

Abstract: The invention relates to fiber compositions that can be pumped and metered in the fashion of fluid chemical admixtures into a concrete mix, thereby enabling the fibers to be dispensed by concrete ready-mix plant operators who can provide verification of fiber administration and dosage. The fibers, particularly plastic shrinkage control fibers having large cumulative surface area, are suspended in an aqueous medium such that their surface area is already wetted out, thereby virtually assuring that substantial uniform fiber dispersion can be achieved without clumping and the delay that is usually required by fiber intermixing.

Abstract: The invention relates to fiber compositions that can be pumped and metered in the fashion of fluid chemical admixtures into a concrete mix, thereby enabling the fibers to be dispensed by concrete ready-mix plant operators who can provide verification of fiber administration and dosage. The fibers, particularly plastic shrinkage control fibers having large cumulative surface area, are suspended in an aqueous or non-aqueous medium such that their surface area is already wetted out, thereby virtually assuring that substantial uniform fiber dispersion can be achieved without clumping and the delay that is usually required by fiber intermixing.

Abstract: A polymer-cement composite composition including an efflorescence-control agent and methods of making same. The composition comprises, by weight percent, about 40 to 50% inert, inorganic filler material, such as silica sand; about 12 to 23% latex preferably in aqueous suspension; about 20 to 25% cement, preferably hydraulic cement; about 7 to 13% reactive silica; and about 0.2 to 1% of an efflorescence-control agent, which is preferably diatomatious earth. The composition is preferably manufactured by simultaneously wet mixing the powdered and liquid components at medium intensity to form a thoroughly mixed batch of green body and de-airing the green body. The green body is then formed into the desired shape followed by curing and drying. The dried product may be further processed, for example by cutting or shaping the product or coating the product.

Abstract: There is described a merchandise display matrix (1) which comprises a support assembly (2) adapted to be fitted with one or more spacer bars (4), the distal end (6) of the spacer bar (4) being capable of supporting a hoarding (8) provided with at least one display aperture (9, 10) wherein one or more merchandise display trays (13) may be arranged to be visible through the display aperture. There is also described a method of displaying merchandise and also a kit comprising a support assembly (2), one or more spacer bars (4), a hoarding (8) provided with a display aperture (9, 10) and one or more merchandise display trays (13).

Abstract: The invention is a device for covering a tray of a surgical table in a medical area with a sterile layer on which surgical instruments may be placed. The covering is held on the tray by an elastic band, drawstring or other adjustable means which partially or completely closes the covering underneath the tray, and which substantially pulls up the skirt of the covering to furnish a form fitting covering of the tray. The material of the covering may be sterilized paper, woven, rubber, plastic or a combination of these materials. The elastic band or drawstring provides rapid and secure positioning of the cover on the surgical table. The invention provides, either as the sole barrier or as a second barrier, a consistent and reproducible barrier to inhibit penetration and therefore violating the integrity of the sterile field which is quickly and conveniently placed and which gathers excess material to thus avoid interference with personnel or the patient.

Abstract: A collapsible structure includes first and second longitudinally extending rigid members, and means pivotally connecting the first and second members for movement between a compact storage orientation, wherein the first and second members extend longitudinally in a substantially parallel relationship, and an erected use orientation, wherein the first and second members extend longitudinally in a substantially non-parallel relationship. Movement between the storage and use orientations requires movement of the second member through an arc greater than 180° and less than 360° into a reflex angle relative to the first member.

Abstract: A system for collecting ultra fine fly ash from a dry fly ash removal system includes providing a bagfilter transport conduit for each bagfilter of the system. A vacuum shutoff valve is positioned in each bagfilter transport conduit The bagfilter transport conduit is selectively connected to an educator that is, in turn, selectively connected to a blower. The blower creates a vacuum flow in the transport conduit that draws the ultra fine fly ash from the bagfilter and deposits the ultra fine fly ash in a collection bin. This system allows a dry fly ash removal system to segregate fly ash by size and separately collect the ultra fine fly ash from the larger fly ash particles. The ultra fine fly ash has been found to be commercially valuable as a concrete admixture filler in various applications.

Abstract: A pair of tension discs is disposed on a tension stud fixed in part of a sewing machine main body. A pneumatic cylinder has a drive rod. The drive rod moves at least one of the tension discs to other tension disc so that one tension disc is pressed to other tension disc. An air regulator is interposed between the pneumatic cylinder and an air supply source, being composed in an electropneumatic system for converting between voltage and air pressure. By controlling the applied voltage to the electropneumatic air regulator on the basis of an instruction from a microcomputer, the set pressure of the air supplied to the pneumatic cylinder is adjusted. Thereby the pressure to the thread held between the pair of tension discs, that is, the thread tension is controlled. As a result, without having to stop the operation of the sewing machine, the thread tension can be adjusted promptly and appropriately.

Abstract: A sewing machine comprising one or more motion means to effect a sewing function, each motion means having a dedicated motion control processor responsive to sewing commands addressed to said motion control processor, for controlling said motion means to effect said sewing faction; and a high speed communications interface for exchanging information between each said motion control processor and an external computer, whereby said sewing commands are determined by the external computer.

Abstract: In the proces of defining quilted fabric, non-stretchable, stretchable and interior layers of materials are wound on separate rollers. Then the layers are positively fed from the rollers to a bi-directional acting sewing assembly wherein the non-stretchable layer is provided with zero elongation and the stretchable layer is provided with 25 to 300 percent stretch. Next, the arranged layers are sewn in sets of sinusoidal-like seam patterns. Finally the stretched layer is permitted to relax to a natural state wherein a series of puffs are formed in rows across the layer normal to stretch direction of the stretchable layer. Result: columns of puffs of even numbered rows are aligned with each other but are laterally offset with respect to puffs of odd numbered rows by a constant amount.

Abstract: A propelling machine (2) is configured curved- tubular, on a ship bottom (1b), with a front casing (12) having a suction inlet (11) opening fore to water, an impeller casing (10) having an impeller (17) inscribed thereto, and a rear casing (14) having a delivery outlet (13) opening aft to water, and the impeller (17) is forward and reverse rotatable.

Abstract: A watercraft apparatus comprises a rigid platform supporting a seat on an upper surface and a rudder rearward and extending downwardly for providing stability to the apparatus when afloat. A strut extends forward of the platform and supports a propulsion unit mount. A frame is engaged with the strut and extends downwardly for supporting an electrical battery. A toroidal flotation structure is engaged with the strut and the undersurface of the platform for floating the apparatus on a body of water. the frame is received within a central aperture of the flotation structure and a bottom cover, integral with the flotation means, closes the center aperture at a lower surface of the flotation structure.

Abstract: A rear grip structure for a small boat capable of discharging water which has entered the boat from between the hull side and the seat. The rear grip structure for a small boat has a structure in which an outer frame is formed into a hollow structure and is inclined upward. The outer frame 31 formed with the first eyelets at the lower portions on the left and the right and with the second eyelets at the portions higher than the first eyelets. This enables the outer frame to play the role of a drain trough, such that when water collects in the rear grip structure, it is taken into the hollow outer frame through the second eyelets. Thereafter, the water in the hollow frame flows down the incline of the hollow frame and is discharged through the first eyelets. The rear grip structure is mounted on the upper hull with a plurality of mounting bolts.

Abstract: A boat featuring an autopilot-based steering and maneuvering system. The steering system uses a specially integrated autopilot that remains engaged unless the operator is actively commanding the boat to change course. For example, in a boat in which steering is performed using a joystick, course changes can be effected simply by moving (e.g., twisting) the joystick. That movement automatically disengages the autopilot, allowing the operator to achieve the course change. When the operator has completed the course change and released the joystick, a centering spring returns it to a neutral position and the autopilot automatically reengages. In the improved maneuvering system, the autopilot is used for controlling the direction of a waterjet boat during very low speed (e.g., less than 4 knots) maneuvers, such as docking. The autopilot controls the steering system, e.g.

Abstract: The invention is a integrated operation using buses to pick up passengers at outlying locations, transfer the passengers to a monorail system for ferrying the passengers to a floating dock structure where the passengers connect to a riverboat for using river-based transportation for communting.

Abstract: The present invention provides systems and methods for a watercraft cover and trailer. In accordance with an exemplary embodiment of the present invention, the watercraft cover includes a top cover and a bottom cover, which mate to enclose a watercraft. The top and bottom covers are connected via a gooseneck gas-actuated style hinge for easy opening and closing of the watercraft cover. Adjustable runner boards mounted to the bottom cover allow for easy entry and exit of the watercraft into and out of the watercraft cover. A ring and strap system allow the watercraft to be secured in the watercraft cover, so that transport is possible. Angled flanges on the top and bottom covers provide for easy entry and exit of the watercraft into and out of the watercraft cover and substantially prevent vibration of the watercraft cover. A hole in the bottom cover allows for access to the watercraft even when the watercraft cover is closed and/or locked.

Abstract: The moisture indicator has a support that is equipped with a substance which contains a moisture-indicating medium that reversibly changes color as a function of moisture. According to the present invention, the moisture-indicating medium is a pH indicator dye that is combined with a zinc salt.

Abstract: A pressure indication device including a housing with an opening in communication with a pressure vessel, a plunger moveable in the housing between a pressurized position and a non-pressurized position, a seal between the opening and the plunger, an indicator over the plunger and biased into a flag position, and a locking mechanism for holding the indicator in a set position until the plunger moves to the non-pressurized position whereupon the indicator returns to the flag position.

Abstract: An N-9-position alkylated form is selectively precipitated by subjecting a mixture containing the N-9-position alkylated form and an N-7-position alkylated form of 2-amino-6-halopurine to a crystallization step using a mixed solvent of an organic solvent and water. Then, this N-9-position alkylated form is reduced to give famciclovir. By this method of the present invention, famciclovir known as an antiviral agent, and an intermediate compound therefor can be efficiently produced.

Abstract: There is provided an apparatus for preparing crystals of a phosphor precursor, comprising a reactor, a stirrer, and a supply pipe for supplying, into the reactor, a solution containing at least an aqueous solution of inorganic fluoride salt, wherein an ion concentration measuring device is provided in at least one of an interior of the reactor and a liquid contacting portion which contacts the solution containing an aqueous solution of inorganic fluoride salt.

Abstract: A method for etching the surface of a bioactive glass, in which the glass surface is contacted with an acid fluoride solution. The solution contains a complexing agent that forms a complex with ions dissolving from the bioactive glass.

Abstract: A silicon semiconductor substrate has a structure possessing oxygen precipitate defects fated to form gettering sites in a high density directly below the defect-free region of void type crystals. The silicon semiconductor substrate is formed by heat-treating a silicon semiconductor substrate derived from a silicon single crystal grown by the Czochralski method or the magnetic field-applied Czochralski method and characterized by satisfying the relational expression (Oi DZ)−(COP DZ)≦10 &mgr;m wherein Oi DZ denotes a defect-free zone of oxygen precipitate crystal defects and COP DZ denotes a region devoid of a void type defect measuring not less than 0.11 &mgr;m in size, and having not less than 5×108 oxygen precipitate crystal defects per cm3.

Abstract: A method and system for growing a crystalline layer on a substrate. Using an electrically-shielded RF (ESRF) source, a plasma is created and directed to a substrate inside the ESRF source. The plasma arrives at the substrate surface with a high mobility and enables its constituents to form a highly regular structure on the substrates.

Abstract: A method of preparing a surface of a substrate for bonding by removing oxide and altering the atomic surface of the substrate is described. The method comprises, providing a substrate comprised of a plurality of elements. The substrate is held at an elevated temperature and an over-pressure of gas is allowed to flow over the surface of the substrate. The gas over-pressure is comprised of an element found in the plurality of elements. Holding the substrate at an elevated temperature helps removes essentially all the oxide on the surface of the substrate. However, the elevated temperatures also evaporate certain atoms on the substrate surface and cause other atoms on the substrate surface to migrate. Flowing a gas over the surface of the substrate, helps to replace the atoms which have evaporated thereby preventing movement of other atoms. After removing the oxide, the substrate is allowed to cool.

Abstract: Provided is a method of facilitating the manufacture of single crystal substrates of silicon carbide and the like even with a large surface area by employing a method of dividing a crystal layer or substrate of silicon carbide or the like into plate-shape. The first method comprises the steps of forming a fracture layer over all or at least a portion of one of the principal surfaces of a first substrate; forming a second single crystal layer over the fracture layer on the first substrate to a thickness affording adequate self-sustaining strength; and cutting at the fracture layer formed on the first substrate to separate the second single crystal layer from the first substrate and obtain a single crystal substrate.

Abstract: A method of growing quaternary epitaxial films having the formula YCZN wherein Y is a Group IV element and Z is a Group III element at temperatures in the range 550-750° C. is provided. In the method, a gaseous flux of precursor H3YCN and a vapor flux of Z atoms are introduced into a gas-source molecular beam epitaxial (GSMBE) chamber where they combine to form thin film of YCZN on the substrate. Preferred substrates are silicon, silicon carbide and AlN/silicon structures. Epitaxial thin film SiCAlN and GeCAlN are provided. Bandgap engineering may be achieved by the method by adjusting reaction parameters of the GSMBE process and the relative concentrations of the constituents of the quaternary alloy films. Semiconductor devices produced by the present method have bandgaps from about 2 eV to about 6 eV and exhibit a spectral range from visible to ultraviolet which makes them useful for a variety of optoelectronic and microelectronic applications.

Abstract: The invention relates to a device and method for depositing one or more layers onto at least one substrate placed inside a reaction chamber. The layers are deposited while using a liquid or solid starting material for one of the reaction gases utilized, which are fed via a gas admission unit to the reaction chamber where they condense or epitaxially grow on the substrate. The gas admission unit comprises a multitude of buffer volumes in which the reaction gasses enter separate of one another, and exit through closely arranged outlet openings while also being spatially separate of one another. The temperature of reaction gases is moderated while passing through the gas admission unit.