Abstract:
An improved vapor-phase deposition method and apparatus for the application of multilayered films/coatings on substrates is described. The method is used to deposit multilayered coatings where the thickness of an oxide-based layer in direct contact with a substrate is controlled as a function of the chemical composition of the substrate, whereby a subsequently deposited layer bonds better to the oxide-based layer. The improved method is used to deposit multilayered coatings where an oxide-based layer is deposited directly over a substrate and a SAM organic-based layer is directly deposited over the oxide-based layer. Typically a series of alternating layers of oxide-based layer and organic-based layer are applied.
Abstract:
A microelectromechanical (MEMS) apparatus has a base and a flap with a portion coupled to the base so that the flap may move out of the plane of the base between first and second position. The base may have a cavity with largely vertical sidewalls that contact a portion of the flap when the flap is in the second position Electrodes may be placed on the vertical sidewalls and electrically isolated from the base to provide electrostatic clamping of the flap to the sidewall. The base may be made from a substrate portion of a silicon-on-insulator (SOI) wafer and the flap defined from a device layer of the SOI wafer. The flap may be connected to the base by one or more flexures such as torsional beams. An array of one or more of such structures may be used to form an optical switch.
Abstract:
Embodiments of the invention relate to methods and apparatus useful in the nanopatterning of large area substrates, where a rotatable mask is used to image a radiation-sensitive material. Typically the rotatable mask comprises a cylinder. The nanopatterning technique makes use of Near-Field photolithography, where the mask used to pattern the substrate is in contact or close proximity with the substrate. The Near-Field photolithography may make use of an elastomeric phase-shifting mask, or may employ surface plasmon technology, where a rotating cylinder surface comprises metal nano holes or nanoparticles.
Abstract:
Embodiments of the invention relate to methods and apparatus useful in the nanopatterning of large area substrates, where a rotatable mask is used to image a radiation-sensitive material. Typically the rotatable mask comprises a cylinder. The nanopatterning technique makes use of Near-Field photolithography, where the mask used to pattern the substrate is in contact or close proximity with the substrate. The Near-Field photolithography may make use of an elastomeric phase-shifting mask, or may employ surface plasmon technology, where a rotating cylinder surface comprises metal nano holes or nanoparticles.
Abstract:
Embodiments of the invention relate to methods and apparatus useful in the nanopatterning of large area substrates, where a movable nanostructured film is used to image a radiation-sensitive material. The nanopatterning technique makes use of Near-Field photolithography, where the nanostructured film used to modulate light intensity reaching radiation-sensitive layer. The Near-Field photolithography may make use of an elastomeric phase-shifting mask, or may employ surface plasmon technology, where a movable film comprises metal nano holes or nanoparticles.
Abstract:
Embodiments of the invention relate to methods and apparatus useful in the nanopatterning of large area substrates, where a rotatable mask is used to image a radiation-sensitive material. Typically the rotatable mask comprises a cylinder. The nanopatterning technique makes use of Near-Field photolithography, where the mask used to pattern the substrate is in contact or close proximity with the substrate. The Near-Field photolithography may make use of an elastomeric phase-shifting mask, or may employ surface plasmon technology, where a rotating cylinder surface comprises metal nano holes or nanoparticles.
Abstract:
We have developed an improved vapor-phase deposition method and apparatus for the application of films/coatings on substrates. The method provides for the addition of a precise amount of each of the reactants to be consumed in a single reaction step of the coating formation process. In addition to the control over the amount of reactants added to the process chamber, the present invention requires precise control over the total pressure (which is less than atmospheric pressure) in the process chamber, the partial vapor pressure of each vaporous component present in the process chamber, the substrate temperature, and typically the temperature of a major processing surface within said process chamber. Control over this combination of variables determines a number of the characteristics of a film/coating or multi-layered film/coating formed using the method. By varying these process parameters, the roughness and the thickness of the films/coatings produced can be controlled.
Abstract:
An intraocular lens with a hydrophilic polymer coating composition and method of preparing same are provided. Specifically, a composition suitable for reducing tackiness in intraocular lenses is provided wherein an acrylic intraocular lens is treated by vapor deposition with an alkoxy silyl terminated polyethylene glycol polymer composition.
Abstract:
We have developed an improved vapor-phase deposition method and apparatus for the application of layers and coatings on various substrates. The method and apparatus are useful in the fabrication of biofunctional devices, Bio-MEMS devices, and in the fabrication of microfluidic devices for biological applications. In one important embodiment, a siloxane substrate surface is treated using a combination of ozone and UV radiation to render the siloxane surface more hydrophilic, and subsequently a functional coating is applied in-situ over the treated surface of the siloxane substrate.
Abstract:
The carbon-doped metal oxide films described provide a low coefficient of friction, typically ranging from about 0.05 to about 0.4. Applied over a silicon substrate, for example, the carbon-doped metal oxide films provide anti-stiction properties, where the measured work of adhesion for a coated MEMS cantilever beam is less than 10 μJ/m2. The films provide unexpectedly low water vapor transmission. In addition, the carbon-doped metal oxide films are excellent when used as a surface release coating for nanoimprint lithography. The carbon content in the carbon-doped metal oxide films ranges from about 5 atomic % to about 20 atomic %.
Abstract translation:所述的碳掺杂的金属氧化物膜提供低摩擦系数,通常为约0.05至约0.4。 施加在硅衬底上,例如,碳掺杂的金属氧化物膜提供抗静电性质,其中测量的涂覆的MEMS悬臂梁的粘附力小于10μJ/ m 2。 这些膜提供了意想不到的低水蒸汽传输。 此外,当用作纳米压印光刻的表面剥离涂层时,碳掺杂的金属氧化物膜是优异的。 碳掺杂的金属氧化物膜中的碳含量为约5原子%至约20原子%。