965 results about "Vacuum deposition" patented technology

Metal foils, wires, and seamless tubes with increased mechanical strength are provided. As opposed to wrought materials that are made of a single metal or alloy, these materials are made of two or more layers forming a laminate structure. Laminate structures are known to increase mechanical strength of sheet materials such as wood and paper products and are used in the area of thin films to increase film hardness, as well as toughness. Laminate metal foils have not been used or developed because the standard metal forming technologies, such as rolling and extrusion, for example, do not lend themselves to the production of laminate structures. Vacuum deposition technologies can be developed to yield laminate metal structures with improved mechanical properties. In addition, laminate structures can be designed to provide special qualities by including layers that have special properties such as superelasticity, shape memory, radio-opacity, corrosion resistance etc. Examples of articles which may be made by the inventive laminate structures include implantable medical devices that are fabricated from the laminated deposited films and which present a blood or body fluid and tissue contact surface that has controlled heterogeneities in material constitution. An endoluminal stent-graft and web-stent that is made of a laminated film material deposited and etched into regions of structural members and web regions subtending interstitial regions between the structural members. An endoluminal graft is also provided which is made of a biocompatible metal or metal-like material. The endoluminal stent-graft is characterized by having controlled heterogeneities in the stent material along the blood flow surface of the stent and the method of fabricating the stent using vacuum deposition methods.

Provided are a method for producing a film, which is satisfactory in productivity, exhibits high gas-barrier property immediately after production, and has excellent adhesive strength between constituent layers while maintaining the excellent gas-barrier property, and a gas-barrier film, which is obtained by the method. The method for producing a gas-barrier film includes the steps of; (1) forming an inorganic thin film by a vacuum deposition method on at least one surface of a base film; (2) forming a thin film by a plasma CVD method on the inorganic thin film formed in the step (1); and (3) forming an inorganic thin film by the vacuum deposition method on the thin film formed in the step (2), in which each of the steps (1) and (3), and the step (2) are sequentially carried out at a pressure of 1×10⁻⁷ to 1 Pa, and at a pressure of 1×10⁻³ to 1×10² Pa, respectively.

A multilayer circuit substrate for multi-chip modules or hybrid circuits includes a dielectric base substrate, conductors formed on the base substrate and a vacuum deposited dielectric thin film formed over the conductors and the base substrate. The vacuum deposited dielectric thin film is patterned using sacrificial structures formed by shadow mask techniques. Substrates formed in this manner enable significant increases in interconnect density and significant reduction of over-all substrate thickness.

A non-contact magnetic drive assembly with mechanical stop elements for a vacuum deposition system employing a lift-off process having a HULA configuration featuring a plurality of magnets coupled in an annular orientation to a central ring and an orbital ring, each magnet of the orbital ring becomes superposed with a magnet of the central ring as the orbital ring rotates, and a central drive component driving either the central ring, the orbital ring around the central ring or both simultaneously, the central drive component provides a rotational speed allowing non-contact, magnetic drive rotation of the orbital ring around the central ring until a difference between a magnetic drive torque of the superposed magnets and the rotational speed of the central drive component causes the superposed magnets to decouple enabling mechanical drive rotation by interactive contact between a plurality of central ring teeth and a plurality of orbital ring.

Implantable medical grafts fabricated of metallic or pseudometallic films of biocompatible materials having a plurality of microperforations passing through the film in a pattern that imparts fabric-like qualities to the graft or permits the geometric deformation of the graft. The implantable graft is preferably fabricated by vacuum deposition of metallic and/or pseudometallic materials into either single or multi-layered structures with the plurality of microperforations either being formed during deposition or after deposition by selective removal of sections of the deposited film. The implantable medical grafts are suitable for use as endoluminal or surgical grafts and may be used as vascular grafts, stent-grafts, skin grafts, shunts, bone grafts, surgical patches, non-vascular conduits, valvular leaflets, filters, occlusion membranes, artificial sphincters, tendons and ligaments.

A composite multi-layer barrier is produced by first vapor depositing a barrier under vacuum over a substrate of interest and then depositing an additional barrier at atmospheric pressure in a preferably thermoplastic layer. The resulting multi-layer barrier is then used to coat an article of interest in a lamination process wherein the thermoplastic layer is fused onto itself and the surface of the article. The vacuum-deposited barrier may consists of a first leveling polymer layer followed by an inorganic barrier material sputtered over the leveling layer and of an additional polymeric layer flash evaporated, deposited, and cured under vacuum. The thermoplastic polymeric layer is then deposited by extrusion, drawdown or roll coating at atmospheric pressure. The resulting multi-layer barrier may be stacked using the thermoplastic layer as bonding agent. Nano-particles may be included in the thermoplastic layer to improve the barrier properties of the structure. A desiccant material may also be included or added as a separate layer.

A method of manufacturing a semiconductor device having an interconnection part formed of multiple carbon nanotubes is disclosed. The method includes the steps of (a) forming a growth mode control layer controlling the growth mode of the carbon nanotubes, (b) forming a catalyst layer on the growth mode control layer, and (c) causing the carbon nanotubes to grow by heating the catalyst layer by thermal CVD so that the carbon nanotubes serve as the interconnection part. The growth mode control layer is formed by sputtering or vacuum deposition in an atmospheric gas, using a metal selected from a group of Ti, Mo, V, Nb, and W. The growth mode is controlled in accordance with a predetermined concentration of oxygen gas of the atmospheric gas.

A thin film barrier structure and process is disclosed, which is seen as particularly useful for use in devices that require protection from such common environmental species as oxygen and water. The disclosed barrier structure is of particular utility for such devices as implemented on flexible substrates, such as may be desirable for OLED-based or LCD-based devices. The disclosed barrier structure provides superior barrier properties, flexibility, as well as commercial-scale reproducibility, through the use of a novel organic/inorganic nanocomposite structure formed by infiltration of a porous inorganic layer by an organic material. The composite structure is produced by vacuum deposition techniques in the first preferred embodiment.

Multilayer thin film reflectors, such as mirrors and reflective polarizers, are described in which form birefringent optical layers are incorporated into a plurality of optical repeat units in the film. The form birefringent layers exhibit birefringence as a result of microscopic structures that have a dimension that is small compared to the wavelength of light but large compared to molecular distances. The optical layers within the optical repeat units have out-of-plane indices of refraction that are tailored to produce desired effects as a function of incidence angle for p-polarized light. The multilayer reflectors can be made by conventional vacuum deposition techniques using known inorganic optical materials, but can also be made entirely with polymeric materials by co-extrusion or other processes.

This invention relates to a process for making articles antimicrobial and odor inhibiting, which comprises using vacuum deposition and electron beam techniques to graft amino-reactive functional groups onto polymeric material which the article comprises, followed by contacting the polymeric material with a chitosan solution.

In a structure 21 for connecting an electric wire and a connecting terminal in the invention, a ductile metal film 29 is formed in advance on an inner surface of a conductor caulking portion 24 of a crimp terminal 22 by such as plating, vacuum deposition, or adhesion. Then, the conductor caulking portion 24 in the rear portion of the crimp terminal 22 is caulked onto core wire portions M in a state of being stripped and extended in the axial direction from an end of a sheathed wire W to thereby establish connection. Subsequently, the metal film 29 is fused on heating. Accordingly, the ductile metal film 29 enters gaps between the inner surface of the conductor caulking portion 24 and the core wire portions M and between adjacent ones of the core wire portions M by the caulking stress. Hence, the area of contact between the conductor caulking portion 24 and the core wire portions M via the metal film 29 increases, and conductivity improves, thereby making it possible to suppress heat generation.

It is an object of the present invention to provide a gas barrier film improved in gas barrier characteristics by decreasing the adsorbent of the surface of a gas barrier layer to water and the like. The present invention attains the above object by providing a gas barrier film comprising a substrate, a gas barrier layer which is a vacuum deposition film, formed on one surface or both surfaces of the above substrate, and a water-repellent layer which is a film having water repellency, formed on the above gas barrier layer.

An improved apparatus and a method of measuring and interpreting reliably, simply and accurately the information on continuous liquid level, liquid temperature and other liquid properties within a vessel. The apparatus could be made of a powered heater element and temperature sensors can be screen-printed, vacuum deposited, etched, welded, soldered or plated on one or both sides of a single rigid or a flexible substrate. The geometry of the heater determines the curve shape, such as steepness or shallowness of a temperature profile along a heater. Various parallel and serial configurations of thermocouples or temperature sensors can be used to measure the temperature along a heater. Simultaneous measurements from all the temperature sensors, before and after heat is applied, are used to generate accurate temperature profiles for the entire heater. Different features of the temperature profiles will determine accurately the liquid level, liquid temperature and other liquid properties. Apparatus of the invention may also be used to detect ice formation.

A stationary vacuum deposition machine for use in a method for processing substrates to make magnetic hard disks includes a series of stations and a transport. The series of stations includes an entrance station for receiving substrates into the machine and a predetermined station. The transport operates in a cycle with each cycle including a transport phase and a stationary phase. The transport causes all the substrates that are in the machine to be moved during the transport phase, and be temporarily held stationary during the stationary phase, such that during each stationary phase a predetermined one of the stations is occupied by one of the substrates while each of a plurality of others of the stations is occupied by a respective one of a plurality of others of the substrates. The machine further includes a plurality of vacuum deposition stations and a scanning beam generator. Each vacuum deposition station operates during each stationary phase such that each station causes a thin film to be deposited on a respective one of the substrates. The scanning beam generator directs a scanning beam at the substrate occupying the predetermined station while the substrate is held stationary to produce a textured pattern.

A mask frame assembly used in vacuum deposition of thin films of an organic electroluminescent device. The mask frame assembly includes a frame having an opening and at least two unit masks which each have at least one unit masking pattern portion in the direction of the unit mask and two edges which are fixed to the frame under tension.

Methods and articles are disclosed in which a substrate is provided with a photo-induced hydrophilic surface by forming a photo-induced hydrophilic coating on the substrate by spray pyrolysis, chemical vapor deposition, or magnetron sputter vacuum deposition. The coating can have a thickness of 50 Å to 500 Å, a root mean square roughness of less than 5, preferably less than 2, and photocatalytic activity of less than 3.0×10⁻³ cm⁻¹ min⁻¹±2.0×10⁻³ cm⁻¹ min⁻¹. The substrate includes glass substrates, including glass sheets and continuous float glass ribbons.

According to embodiments of the present invention, a method for manufacturing a pattern of conductive elements on a substrate is provided. The method includes depositing in a vacuum deposition chamber an electrically conductive material onto the substrate to form a base layer. Then, the method includes selectively applying an electric insulating agent on selective areas of the base layer. Then, areas of the base layer that are not covered with the insulating material are electroplated with a second electrically conductive layer. The electric insulating agent is then removed from the substrate and the base layer is chemically etched thus removing the base layer that was covered with the insulating material and selectively exposing the substrate to create the pattern of conductive objects on the substrate.

This invention provides a very sensitive optical attenuator, which can be used to couple and attenuate optical signals between optical fibers with a wide range of attenuation level. Such an optical attenuator includes a flexible conductive membrane to be moved by an external force, such as electrostatic force, to achieve deformation of the conductive membrane. The conductive membrane can be formed, for example, by a vacuum deposited silicon nitride film. A thin metallic, conductive layer is then deposited on the flexible membrane to form a reflective mirror to receive and reflect incident optical signals. The semiconductor structure includes one or more spacing posts, with which the first structural member is to be joined and bonded. Electrodes are placed on the semiconductor structure in close proximity to the flexible membrane. At various areas of the semiconductor structure, additional spacing posts are added to cause deformation of the conductive membrane when a voltage is applied between the membrane and the electrodes on the semiconductor structure.

The uniformity of individual layers of multiple coating materials deposited on a substrate in a vacuum deposition process (such as for manufacturing mirrors for use in ring laser gyroscopes) is improved by an apparatus and method that include changing the masks placed in front of the substrate upon which the coating materials are to be deposited. Separate masks are tuned for each particular coating material to compensate for the unique plume shape of the material, and provide a uniform deposition of that particular coating material. Each mask is positioned in front of the substrate when the material for which the mask has been tuned is being deposited. The masks are changed when the coating material is changed, without venting the chamber.

The present invention is a substrate holder system for and method of providing a substrate-to-mask alignment mechanism, securing mechanism and temperature control mechanism. The substrate holder system is suitable for use in an automated shadow mask vacuum deposition process. The substrate holder system includes a system controller, and a substrate arranged between a magnetic chuck assembly and a mask holder assembly. The magnetic chuck assembly includes a magnetic chuck, a thermoelectric device, a plurality of thermal sensors and a plurality of light sources. The mask holder assembly includes a shadow mask, a mask holder, a motion control system and a plurality of cameras. The substrate holder system of the present invention provides close contact between the substrate and the shadow mask thereby avoiding the possibility of evaporant material entering into a gap therebetween.