208results about How to "Surface cleaning" patented technology

A preferred method for making a carbon nanotube-based field emission device in accordance with the invention includes the following steps: providing a substrate (22) with a surface; depositing a catalyst layer (24) on a predetermined area on the surface of the substrate; forming a carbon nanotube array (30) extending from the predetermined area; forming a cathode electrode (40) on top of the carbon nanotube array; and removing the substrate so as to expose the carbon nanotube array.

An apparatus and method for implanting a desired chemical species in a semiconductor substrate. The apparatus comprises a target chamber, a holder to hold a substrate in the target chamber for implantation, a pump to pump the target chamber down to a desired pressure, a pressure lock to enable a substrate to be passed into the target chamber for loading on the holder while the target chamber is at sub-atmospheric pressure, an ion beam generator for generating and directing a beam of ions containing said desired species at a surface of a substrate on said holder, and a reactive gas supply to feed a reactive gas into the target chamber while the chamber is maintained by the pump at the desired pressure, to provide a desired partial pressure of the reactive gas in the target chamber to reactive with and volatilise unwanted contaminants on surfaces in the target chamber.

A problem in the conventional technique is that metal contamination on a silicon carbide surface is not sufficiently removed in a manufacturing method of a semiconductor device using a monocrystalline silicon carbide substrate. Accordingly, there is a high possibility that the initial characteristics of a manufactured silicon carbide semiconductor device are deteriorated and the yield rate is decreased. Further, it is conceivable that the metal contamination has an adverse affect even on the long-term reliability of a semiconductor device. In a manufacturing method of a semiconductor device using a monocrystalline silicon carbide substrate, there is applied a metal contamination removal process, on a silicon carbide surface, including a step of oxidizing the silicon carbide surface and a step of removing a film primarily including silicon dioxide formed on the silicon carbide surface by the step.

Self-assembled nanowires are provided, comprising nanowires of a first crystalline composition formed on a substrate of a second crystalline composition. The two crystalline materials are characterized by an asymmetric lattice mismatch, in which in the interfacial plane between the two materials, the first material has a close lattice match (in any direction) with the second material and has a large lattice mismatch in all other major crystallographic directions with the second material. This allows the unrestricted growth of the epitaxial crystal in the first direction, but limits the width in the other. The nanowires are grown by first selecting the appropriate combination of materials that fulfill the foregoing criteria. The surface of the substrate on which the nanowires are to be formed must be cleaned in order (1) to ensure that the surface has an atomically flat, regular atomic structure on terraces and regular steps and (2) to remove impurities. Finally, epitaxial deposition of the first crystalline material on the cleaned surface is performed, thereby forming the self-assembled nanowires. Thus, one-dimensional epitaxial crystals are obtained with widths and heights at the nanometer scale, and lengths at the micrometer scale, which are aligned along certain crystallographic directions with high crystal quality.

Compliant coatings for insertable medical articles are provided. In some aspects, the coating includes a diene polymer-containing layer, and a second coated layer that includes another polymer. The coating can be formed by coupling the polymer of the second coated layer to the first coated layer via latent reactive groups, such as photoreactive groups. In other aspects, the insertable medical article has a coating that provides different functional features to different surfaces of the article. The medical article can have a cylindrical shape with an interior surface having a first coating, and an exterior surface with a second coating, wherein the article also includes a plurality of openings.

A small, lightweight sanitizing device that is adapted for attachment to a stethoscope. When the stethoscope is not being used the device covers the diaphragm and bell portions of the stethoscope with sanitizing pads that kill germs and prevent the spread of disease between patients that are examined with the stethoscope. When the health care provider needs to use the stethoscope, the device can be slid up a length of the stethoscope to a desired location so that the diaphragm is exposed for use. The device is advantageously produced with a narrow top that frictionally engages with the tube of the stethoscope so that the sanitizing device stays at the desired location until the user pulls the device back down over the diaphragm. The present sanitizing device can be used with both adult and pediatric stethoscopes. In an alternative embodiment, the sanitizing device is designed to be held within the front pocket of a health care provider's shirt or lab coat so that sterilization of the diaphragm and bell are achieved by simply placing the head portion of the stethoscope in the front pocket.

Methods and reworked intermediate and resultant electronic modules made thereby, whereby a component in need of rework is located and removed from the module to reveal encapsulated solder connections residing within an underfill matrix. Heights of both the solder connections and underfill matrix are reduced, followed by etching the solder out of the solder connections to form openings within the underfill matrix. The underfill material is then removed to expose metallurgy of the substrate. A blank having a release layer with an array of solder connections is aligned with the exposed metallurgy, and this solder array is transferred from the blank onto the metallurgy. The transferred solder connections are then flattened using heat and pressure, followed by attaching solder connections of a new component to the flattened solder connections and underfilling these reworked solder connections residing between the new chip and substrate.

The invention relates to a method of manufacturing fibre-reinforced parts for a wind power plant such as eg a blade, wherein the method comprises laying out a first, outermost layer of film in the interior surface of an open mould; following which different layers are arranged on top of the first layer, comprising layers of fibre material; and wherein resin is applied for joining the laid-out layers to each other. By use of a film for the outermost layer a moulding process results that provides a major improvement of the working conditions. A further advantage is also that, compared to the use of gelcoat, a surface is accomplished which is more resistant to physical influences in the form of eg cyclical stresses on the element. The invention also relates to a fibre-reinforced part for a wind power plant, eg a blade, wherein the part is structured from a first, outermost layer, and also to a blade for a wind power plant and comprising a fibre-reinforced part according to the invention.

A dustfree filling and sealing apparatus is disclosed. A pair of wrapping clean films 10 which are free of cleaning are supplied from a pair of wrapping clean film supply means 1. Two outer layer films 10b are peeled off and removed from the wrapping clean films 10 by a pair of outer layer film peeling-off means 2. Thus, clean surfaces of inner layer films 10a appear. The two inner layer films 10a are conveyed by a pair of inner layer film conveying means 4 so that these films are opposed. An object 15 is inserted between the inner layer films 10a by an object filling means 5. The inner layer films 10a are sealed by an impulse seal head 6. The present invention also discloses a wrapping clean film producing method and a dustfree container.

Light cured nail coatings that are applied to natural nails and/or artificial nail-tips for cosmetic purposes. An optional bond-enhancing compound can be used to strengthen the bond between the light curable coatings and the natural nail. Also, finishing compounds may be used to clean the surface of the uv curable coatings resulting in a high-gloss shine. The methods of applying uv-radiation curable nail coatings, bond-enhancing compounds, and finishing compounds to artificial nail-tips and natural nail are also discussed.

A mobile vehicle washing apparatus in which the length, width and height of the apparatus may each be adjusted to the size of the vehicle to be washed and for easier transport. The frame dimensions may be adjusted by a system of cranks found on each frame member that may need to be adjusted. Also, attached to the frame are swinging arm members that may clean the bottom side of a vehicle passing through them. Powered brush members are used in the apparatus as a means to scrub vehicle surfaces. The cleaning and rinsing fluids pass through a series of hoses and nozzles mounted about the frame so that the tops and left and right sides of the vehicles being cleaned may be covered by said fluids.

The present invention is related to a watch case adapted to be integrated into a wrist watch device, the watch case comprising an inner volume for housing internal components of the wrist watch device and attachment elements for attaching at least one watch strap of the wrist watch device, wherein at least one portion of the inner volume of the watch case extends laterally (or longitudinally) beyond the points of attachment of the at least one watch strap. The present invention is also directed to a corresponding watch strap as well as to a wrist watch device comprising such a watch case.

This patent discloses an improved multi-pin electrical connector for use in wet environments. Multi-pin connectors are widely used. In some uses, the connectors may be exposed to water. The improved connector keeps external water from entering the connector and isolates any water inside the connector. A number of improvements are disclosed, including seals for the pins, seals for the wires exiting the back of the connector, and bonding internal insulator materials. The invention also incorporates an improved female receptacle design that provides a better male-to-female connection, thus improving performance of the connector. The multi-pin connector disclosed is suitable for use in almost any wet environment.

Light cured nail coatings that are applied to natural nails and/or artificial nail-tips for cosmetic purposes are disclosed that eliminate the oxygen inhibited sticky surface layer common for light cured nail coatings, thereby eliminating the need for post application cleansing of the nail surface before polishing.

A system and method for improving the performance of an integrated circuit by lowering RC delay time is provided. A preferred embodiment comprises adding a reactive etch gas to the ash/flush plasma process following a low-k dielectric etch. The illustrative embodiments implement a removal of the damage layer that is formed during a low-k dielectric etch.

Light cured nail coatings that are applied to natural nails and/or artificial nail-tips for cosmetic purposes. An optional bond-enhancing compound can be used to strengthen the bond between the light curable coatings and the natural nail. Also, finishing compounds may be used to clean the surface of the uv curable coatings resulting in a high-gloss shine. The methods of applying uv-radiation curable nail coatings, bond-enhancing compounds, and finishing compounds to artificial nail-tips and natural nail are also discussed.

A method for transferring heat includes flowing a wastewater through a tank and flowing a fluid through a heat exchanger having an outer surface. The method further includes aerating the wastewater to produce a convective flow, contacting the outer surface of the heat exchanger with the convective flow to exchange heat, and cleaning the outer surface of the heat exchanger with the convective flow. A system for transferring heat includes a tank, a heat exchanger with an outer surface disposed in the tank, and a fluid flowing through the heat exchanger. Wastewater located in the tank flows over the outer surface of the heat exchanger, and a diffusion pipe disposed in the tank provides air into the tank to produce a convective flow in the wastewater.