3162 results about "Surface preparation" patented technology

A robotic surface treating device that can perform carpet sweeping, hard-surface dry sweeping / wiping, and hard-surface sweeping / mopping is disclosed. The robotic surface treating device includes a sweeper brush, a dust bin for collecting debris from the brush, a reel-to-reel sheet of cleaning material, and a fluid delivery system for delivering fluid from a fluid reservoir onto the sheet of cleaning material and / or onto the surface to be treated. The dust bin, reel-to-reel sheet of cleaning material, and the fluid reservoir are separately installed from the top of the device, and may be separately removed for replacement.

A method for selectively depositing a metallic film on a substrate comprising a first dielectric surface and a second metallic surface is disclosed. The method may include, exposing the substrate to a passivating agent, performing a surface treatment on the second metallic surface, and selectively depositing the metallic film on the first dielectric surface relative to the second metallic surface. Semiconductor device structures including a metallic film selectively deposited by the methods of the disclosure are also disclosed.

This invention relates to a process for treatment of a multi-layer wafer with materials having differential thermal characteristics, the process comprising a high temperature heat treatment step that can generate secondary defects, characterised in that this process includes a wafer surface preparation step before the high temperature heat treatment step.

This invention is directed toward surface treatment of a device. The surface treatment comprises the attachment of terminal functionalized surfactants to the surface of the substrate by means of reactive functionalities of the terminal functionalized surfactant material reacting with complementary surface reactive functionalities in monomeric units along the polymer substrate. The present invention is also directed to a surface modified medical device, examples of which include contact lenses, intraocular lenses, vascular stents, phakic intraocular lenses, aphakic intraocular lenses, corneal implants, catheters, implants, and the like, comprising a surface made by such a method.

A method and system for treating tissue with a combined therapy profile is disclosed. In one exemplary embodiment, ultrasound energy is used to treat numerous depths of tissue within a region of interest and the spatial and temporal properties of the ultrasound energy are varied for more effective treatment. The method and system of the present invention are configured to treat all of the tissue from the surface on down and not spare intervening tissue.

A tissue surface treatment apparatus includes a housing having a proximal end, a distal end including a tissue contacting surface, an interior defined by the housing and a handpiece coupled to the housing. The contactinc surface has a plurality of apertures. An energy delivery device including an electrode is positionable in the housing interior. The electrode includes a tissue penetrating distal end in substantial alignment with an aperture. The electrode is configured to be advanced from the housing interior through the aperture and into a target tissue site to define an ablation volume at least partly bounded by a tissue surface. An advancement device is coupled to the energy delivery device and is at least partly positionable within at least one of the housing or the handpiece. The advancement device is configured to advance the electrode from the housing interior into the target tissue site and withdrawal the electrode into the housing interior. A cable is coupled to the housing or the energy delivery device and is configured to be coupled to an energy source.

The invention belongs to the field of surface treatment, and relates to a stainless steel cleaner. The cleaner comprises a nonionic surfactant, an anionic surfactant, a complexing agent, a degreasing agent and deionized water, wherein the degreasing agent is one of amide, and a mixture of amide and hydramine. An environmentally-friendly cleaner comprising the amide or the hydramine, a composite surfactant and the like removes grease under the alkalescent condition, and has good cleaning effect due to the permeation effect of the composite surfactant on the grease and an oxide layer. The invention also relates to a stainless steel cleaning method. The stainless steel cleaner and the stainless steel cleaning method are widely applied to the treatment of various stainless steel surfaces.

An apparatus and method for processing a microelectronic substrate comprises a main chamber and a movable boundary. The main chamber comprises a main chamber wall enclosing a main chamber interior. The movable boundary is disposed within the main chamber interior, and is movable between a first position and a second position. At the first position, the movable boundary at least partially defines a sub-chamber in which a substrate can be processed. The sub-chamber is fluidly isolated from the main chamber interior, and provides an environment suitable for a high-pressure processing of the substrate such as cleaning or surface preparation. The sub-chamber can be maintained at a high pressure while the main chamber is maintained at either a low pressure, an atmospheric pressure, or at a vacuum. The apparatus can be directly coupled to an external substrate handling and / or fabrication module, such that the main chamber interior provides a buffer between the sub-chamber and the external module. At the second position of the movable boundary, the substrate can be loaded into or removed from the apparatus, such as by transfer to or from any external module provided.

A first aspect of the present invention is directed to a surface treatment for elastomeric articles such as medical gloves, comprising a water-based coating formulation and antimicrobial agent(s) embraced therein in an essentially powder-free composition coating. A second aspect of the present invention is directed to a water-based coating formulation for elastomeric articles such as gloves comprising at least one non-volatile water-soluble antimicrobial agent in a controlled-release matrix comprising a blend of a hydrophilic polymer and a hydrophobic component. The controlled-release matrix / blend requirements include: compatibility with the antimicrobial agent, formation of a reservoir of antimicrobial agent, coating film flexibility and lower water-solubility than the antimicrobial agent. A third aspect of the present invention is directed to a method for treating medical gloves comprising dipping, spraying, tumbling or other means for applying to the glove surface a composition to provide medical gloves with sustainable antimicrobial activity.

Improved cleaning compositions for removing particles, organic contamination, photoresist, post-ash residue, coatings, and other materials from metal and silicon surfaces including substrates present during the manufacture of integrated circuits, liquid crystal displays, and photovoltaic devices. The cleaning and surface preparation compositions comprise one or more water soluble strongly basic components, one or more water soluble organic amines, one or more water soluble oxidizing agents, balance water. Optional components can include corrosion inhibitors, surfactants and chelating agents.

The present invention provides a surface preparation process using adsorbed halogen. The halogen is applied in a gas phase with UV light. The adsorbed halogen is subsequently modified in another gas phase reaction. The halogen may be reacted with water to form a hydroxyl-bearing Si—O monolayer that forms a layer for subsequent metal deposition. In one aspect the halogen layer is reacted with an alkyl or alkoxy of the formula R-OH to form a passivation layer. By replacing hydrogen atom termination with alkoxy (e.g.methoxy termination, —OCH3). The selective deposition process can be used for passivating and depositing thin metal films on material surfaces composed of any combination of the group consisting of semiconductors, conductors, insulators, and the like.

Compositions useful in semiconductor manufacturing for surface preparation and / or cleaning of wafer substrates such as semiconductor device precursor structures. The compositions can be employed for processing of wafers that have, or are intended to be further processed to include, copper metallization, e.g., in operations such as surface preparation, pre-plating cleaning, post-etching cleaning, and post-chemical mechanical polishing cleaning of semiconductor wafers. The compositions contain (i) alkanolamine, (ii) quaternary ammonium hydroxide and (iii) a complexing agent, and are storage-stable, as well as non-darkening and degradation-resistant in exposure to oxygen.

A method and system for treating tissue with a combined therapy profile is disclosed. In one exemplary embodiment, ultrasound energy is used to treat numerous depths of tissue within a region of interest and the spatial and temporal properties of the ultrasound energy are varied for more effective treatment. The method and system of the present invention are configured to treat all of the tissue from the surface on down and not spare intervening tissue.

The invention discloses super-hydrophobic and super-oleophobic surface preparation technology. In the preparation technology, aluminum or aluminum alloy sheets are subjected to two-step electrochemical treatment, and then are modified by using perfluorinated octadecyl trichlorosilane or perfluorinated polymethacrylate to prepare the super-hydrophobic and super-oleophobic surface. The surface has super-hydrophobic property on aqueous solution of which the pH value is between 1 and 14 and super-oleophobic property on various oil drops, wherein a contact angle of the surface on water is 171 degrees, and a rolling angle is less than 1 degree; the surface expresses the super-oleophobic property on various oil drops except for perfluorinated polymer liquid, and all contact angles between the oil drops and the surface are more than 150 degrees, and rolling angles are generally less than 10 degrees; and the surface can also be put in air for a long time and can still maintain the super-hydrophobic property and super-oleophobic property.

The invention discloses a low-smoke halogen-free flame-retardant polyolefin cable material and a preparation method thereof. The formula of the cable material comprises the following raw materials in percentage by weight: 20-30% of ethylene-vinyl acetate copolymer, 10-20% of linear low-density polyethylene, 3-6% of compatilizer, 50-60% of inorganic flame retardant, 2-5% of synergistic flame retardant, 0.5-1% of coupling agent, 0.2-0.5% of lubricant and 0.2-0.5% of antioxidant. The preparation method of the cable material comprises surface treatment of the inorganic flame retardant, burdening,mixing, milling, extrusion and granulation and other process steps. Compared with the prior art, the cable material disclosed by the invention has the advantages of superior flame retardancy, low smoke, low toxicity, no droplets, good processing performance, good dispersion of the inorganic flame retardant, and better uniformity and surface finish degree.

The invention relates to the technical field of micro-structural surface preparation and laser micro-processing, and in particular provides a method for preparing a micro-nano composite texturing cutting tool by using femtosecond laser. In the method, micro-nano texturing and micro / nano composite texturing preparation is performed on the cutting tool surface by utilizing the unique interaction property between femtosecond laser and materials, the operation is simple, and the accuracy can be controlled. The preparation of micro / nano composite texture can be performed on a coated cutting tool by adopting a coated surface direct texturing method or a two-step composite texturing method. The method overcomes the defect of singleness of texturing only in micron scale in the conventional cutting tool texturing technology, and can further improve the abrasion resistance of the cutting tool, and prolong the service life of the cutting tool.

Compositions useful in microelectronic device manufacturing for surface preparation and / or cleaning of wafer substrates such as microelectronic device precursor structures. The compositions can be employed for processing of wafers that have, or are intended to be further processed to include, copper metallization, e.g., in operations such as surface preparation, pre-plating cleaning, post-etching cleaning, and post-chemical mechanical polishing cleaning of microelectronic device wafers. The compositions contain (i) alkanolamine, (ii) quaternary ammonium hydroxide and (iii) a complexing agent, and are storage-stable, as well as non-darkening and degradation-resistant in exposure to oxygen.

Functional particulate carrier materials with enhanced retention capabilities are described. The materials comprise at least one functional particulate carrier material subjected to at least one surface treatment, and at least one active ingredient. The at least one surface treatment may be at least one physical surface treatment and / or at least one chemical surface treatment with at least one surface treating agent. The at least one active ingredient may be a biocide, a fungicide, a mildewcide, an antibiotic, an insecticide, a preservative, or an antimicrobial agent. Methods for enhancing the performance of plastics and liquid-based media, for example, coatings and paints, are also described by increasing the retention factors of active ingredients in those plastics and media through surface treatment of functional particulate carrier materials.

An apparatus and method of making moisture resistant solar cells, strings and modules is provided. The method includes reducing the roughness of the finger patterns by coating them fully or partially with a surface preparation film. The surface preparation film firmly attaches itself to underlying finger patterns and electrical leads while forming a smooth surface on which a moisture barrier film is subsequently deposited. Process flows to obtain moisture resistive solar cells, solar cell strings are described.

An apparatus and method for a silicon-based Micro-Electro Mechanical System (MEMS) device, including a pair of silicon cover structures each having a substantially smooth and planar contact surface formed thereon; a silicon mechanism structure having a part thereof that is movably suspended relative to a relatively stationary frame portion thereof, the frame portion being formed with substantially parallel and spaced-apart smooth and planar contact surfaces; a relatively rough surface disposed between the contact surfaces of the covers and corresponding surfaces of the movable part of the mechanism structure; and wherein the contact surfaces of the cover structures form silicon fusion bond joints with the respective contact surfaces of the mechanism frame.

Methods are disclosed to improved adhesion of polymer coatings over polymer surfaces of stents which include plasma treatment, applying an adhesion promoting layer, surface treatments with solvents, and mechanical roughening techniques.

Complex coacervate core micelles as surface modification or surface treatment The present invention relates to devices carrying on the surface polymeric micelles and a process for the preparation thereof. It further relates to the use of polymeric micelles as a surface coating for rendering a surface anti-fouling and / or protein-resistant. The present invention relates to modified or treated surfaces carrying on polymeric micelles and a process for the preparation thereof. It further relates to the use of polymeric micelles as a surface coating for surface modification or surface treatment. The surface modification or surface treatment is for example for rendering a surface anti-fouling and / or protein-resistant, or for preventing bacteria proliferation, disinfecting, suppressing odours, preventing malodour, providing easy-cleaning or soil-release properties. These polymeric micelles are of the so-called complex coacervate core type, exhibiting a hydrophilic, neutral corona and a core, which is formed by charge complexation of oppositely charged blocks.

A method for fabricating butt-coupled electro-absorptive modulators is disclosed. A butt-coupled electro-absorptive modulator with minimal dislocations in the electro-absorptive material is produced by adding a dielectric spacer for lining the coupling region before epitaxially growing the SiGe or other electro-absorptive material. It has been determined that during the SiGe growth, the current process has exposed single crystal silicon at the bottom of the hole and exposed amorphous silicon on the sides. SiGe growth on the amorphous silicon is expected to have more dislocations than single crystal silicon. There should also be dislocations or fissures where the SiGe growth from the each nucleation source finally join. Thus, a dielectric sidewall can protect an exposed waveguide face from any etching from an aggressive surface preparation prior to epi growth.

The invention provides surface treatments that reduce or eliminate marine biofouling of various surfaces. A surface that is to be subjected to a marine environment can be treated with a mPEG-DOPA. The treated surface is thus rendered less susceptible to fouling of the surface.

Fabrication of AlN substrates suitable for epitaxial deposition of high-quality nitride-based compounds thereon having at least one single-crystal and substantially planarized useful area exceeding about 1 cm2 with a peak-to-valley surface topography in the useful area being less than about 50 nm is accomplished by, for example, employing an active solution that reacts non-selectively with the substrate material.

The invention belongs to the technical field of surface treatment, and relates to a nano superhydrophobic surface used for airplane antifreezing and deicing and a preparation method thereof. The preparation method comprises the following steps: making a hydrophobic microstructure on a substrate by non-silicon surface micromachining technology or microreplication method; coating a nano decorative film on the surface of the hydrophobic microstructure; and baking the prepared hydrophobic microstructure and the substrate coated with the nano decorative film to obtain the dry and clean superhydrophobic surface. The nano superhydrophobic surface improves the contact properties between the surface of an airplane and waterdrops and greatly reduces the degree that a fuselage is infiltrated by the waterdrops; and the nano decorative film can also further reduce the viscous force of the waterdrops when the waterdrops slip the surface of the fuselage, the number of the waterdrops condensed on the surface of the fuselage is reduced, the icing degree on the surface of the airplane is effectively reduced, and the aim of high-efficiency, clean and low-cost airplane ice prevention / removal is achieved.

An absorbent material formed at least in part of a cross-linked polymer. The absorbent material has a centrifuge retention capacity as determined by a Centrifuge Retention Capacity Test of at least about 20 g / g and a gel bed permeability under load as determined by a Gel Bed Permeability Under Load Test of at least about 200×10−9 cm2 or a free swell gel bed permeability as determined by a Free Swell Gel Bed Permeability Test of at least about 2,500×10−9 cm. The cross-linked polymer may comprise either at least about 75 weight percent anionic polymer or at least about 75 weight percent cationic polymer. In one embodiment, the cross-linked polymer is surface treated with a water soluble non-cross-linked polymer having a potential for becoming charged opposite that of the cross-linked polymer.

A cleaning pad (28) is disclosed. The cleaning pad (28) includes a base sheet (202) bonded to a fiber mat (203) and exhibits improved debris retention when an additive that exhibits amphiphillic properties is applied to the pad (28). The additive may be added to the pad (28) during manufacture or selectively applied by a user.

Described herein is a process for fabricating microfluidic systems with embedded components in which micron-scale features are molded into the polymeric material polydimethylsiloxane (PDMS). Micromachining is used to create a mold master and the liquid precursors for PDMS are poured over the mold and allowed to cure. The PDMS is then removed form the mold and bonded to another material such as PDMS, glass, or silicon after a simple surface preparation step to form sealed microchannels.