443 results about "Metal device" patented technology

A method for controlling the activity of drugs on or in drug-coated or drug-loaded implantable devices, such as stents or other metallic devices, uses non-invasive, inductive heating of such device. The heating of a device, such as stent, can be used to release drugs applied to the stent in release layers, to activate drugs on the stent that have little or no activity at body temperature and to enhance for defined periods the reaction environment at the stent for drug-adjacent tissue interactions. Reverse effects of deactivation of drugs upon heating are also possible.

A method of fabricating a package for a micro-electromechanical systems (MEMS) device. A flex circuit interconnect subassembly for the package is made by placing a flex circuit on a pad insert, attaching a carrier insert to the pad insert to deflect the lead portions of the flex circuit, and applying a cover insert to the pad insert, after the attachment of the carrier insert, to re-deflect the lead portions of the flex circuit toward the device bond sites. The flex circuit interconnect subassembly may be combined with an electronic device die / carrier subassembly to form a completed electronic device package. The flex circuit interconnect subassembly and the die / carrier subassembly are joined using mechanical interlocking layers. The invention is particularly suited for making such an electronic device die / carrier subassembly which has a MEMS die permanently affixed to a carrier. The carrier is advantageously utilized during the process of releasing a protective coating from the surface of the MEMS die which support the various MEMS components. The MEMS components on the MEMS die are hermetically sealed, such as by bonding a cover to the upper package body or the lower package body. The cover may have features such as ports which allow the MEMS components to interact with the external environment.

A structure and method for forming a dual metal fill and dual threshold voltage for replacement gate metal devices is disclosed. A selective deposition process involving titanium and aluminum is used to allow formation of two adjacent transistors with different fill metals and different workfunction metals, enabling different threshold voltages in the adjacent transistors.

The invention provides a metal corrosion inhibitor composition, a metal corrosion inhibitor thereof and an application thereof. The metal corrosion inhibitor composition contains a water-soluble inorganic zinc salt, an organic phosphine compound, an inorganic phosphorus compound, polyepoxysuccinic acid, a polyacrylamide polymer, and a gluconate, wherein the weight ratio is 0.5-5:0.1-5:0.1-2.5:0.5-8:3-20:1. The metal corrosion inhibitor of the invention has the advantages of good water solubility, and easy complex use with other water processing agents, can satisfy anticorrosion requirements of various metal devices (such as copper devices), and also can satisfy requirements of carbon steel devices of a system, so the metal corrosion inhibitor has very high industrial application values.

A metal-over-metal (MOM) device and the method for manufacturing same is provided. The device has at least one device cell on a first layer comprising a frame piece and a center piece surrounded by the frame piece. The center piece has a cross-shape center portion defining four quadrants of space between the frame and center pieces. The center piece has one or more center fingers each extending from at least one of the four ends thereof within a quadrant. The frame piece also has one or more frame fingers extending therefrom, each being in at least one quadrant and not being overlapped with the center finger in the same quadrant.

The invention discloses a lightning-proof electric control device of a photovoltaic power generation system, which is arranged in the photovoltaic power generation system and comprises lightning arresters, a special grounding wire, lightning-proof devices and a surge protector. The lightning arresters are arranged on non-conductive roofs of a photovoltaic battery assembly support, a controller and an inverter; the special grounding wire is used for connecting a metal device in the lightning-proof electric control device with a grounding main line; the lightning-proof devices are arranged in asolar battery square matrix connection box, the controller and the inverter; and the surge protector is arranged at an alternating current output end. In the embodiment of the invention, the lightning-proof electric control device of the photovoltaic power generation system avoids influencing normal work due to the damage of the photovoltaic power generation system under the thunder and lightningfunction through equipment including the lightning arresters, the lightning-proof device and the like arranged in the photovoltaic power generation system, so as to achieve the aim of improving the work stability of the photovoltaic power generation system.

The present invention relates to coating compositions for metallic devices, especially for aircrafts, to provide protection against corrosion. The coating composition comprises ceramic particles having at least one active material substantially homogeneously distributed throughout each particle. The active material being releasable in the presence of a liquid by solubilization into the liquid.

The present disclosure provides a method that includes providing a semiconductor substrate; forming a gate structure over the semiconductor substrate, first gate structure including a dummy dielectric and a dummy gate disposed over the dummy dielectric; removing the dummy gate and the dummy dielectric from the gate structure thereby forming a trench; forming a boundary layer on the semiconductor substrate; forming a high-k dielectric layer on the boundary layer partially filling the trench; forming a barrier layer over the high-k dielectric layer partially filling the trench; forming an capping layer over the barrier layer partially filling the trench; performing an annealing process; removing the capping layer; forming a metal layer over the barrier layer filling in a remainder of the trench; and performing a chemical mechanical polishing (CMP) to remove the various layers outside the trench. The invention can improve the quality of the high-k dielectric layer in the final component.

A method of treating a metallic medical device is disclosed and includes providing a metallic medical device, ionizing the media surrounding at least one electrode to produce an energized plasma proximate to the electrode, and exposing the metallic device to the plasma prior to use of the metallic device. In one embodiment a vascular stent is the medical device.

A method of fabricating and encapsulating MEMS devices is disclosed, using least two carbon films as the dual sacrificial layers sandwiching a MEMS structural film which is anchored onto a substrate and covered by an encapsulating film containing a plurality of thru-film sacrificial release holes. The dual sacrificial carbon films are selectively removed via plasma-enhanced oxygen or nitrogen ashing through the thru-film sacrificial release holes for releasing the MEMS structural film inside a cavity formed between the encapsulating film and the substrate. The thru-film sacrificial release holes, preferably with a relative high asperity ratio, are then sealed off by depositing a hole-sealing film in a physical vapor deposition process or a chemical vapor deposition process or combination.

Disclosed herein is an apparatus for sensing characteristics of an object. In a preferred embodiment, the apparatus comprises an array, wherein the array comprises a plurality of nanoscale hybrid semiconductor / metal devices which are in proximity to an object, each hybrid semiconductor / metal device being configured to produce a voltage in response to a perturbation, wherein the produced voltage is indicative of a characteristic of the object. Any of a variety of nanoscale EXX sensors can be selected as the hybrid semiconductor / metal devices in the array. With such an array, ultra high resolution images of nanoscopic resolution can be generated of objects such as living cells, wherein the images are indicative of a variety of cell biologic processes.

The invention provides a method for preparing a film metal micro device on the surface of PDMS by chemical plating. The method comprises: a layer of polyacrylic acid (PAA) is selectively grafted to be formed on a designated area of the surface of PDMS through the photochemical reaction by adopting photolithographic masks; after a series of surface chemical reactions such as amination, absorption, reduction and the like, a nano-scale gold particle catalytic center required by chemical plating is formed in an area irradiated by UV light; finally, by selectively carrying out chemical plating on metal by means of nano-gold catalysis, the metal film device is formed on the surface of the PDMS irradiated by the UV light. By the method, the integrated metal film is prepared on the surface of the PDMS sheet and on the inner surface of the channel / cavity of the PDMS in order to prepare such micro devices as a micro-heater, a microelectrode, a microsensor, a micro shielding device and the like, which take the PDMS as a substrate, and to integrate circuits. The method is characterized in that the process is simple and easy to practice and clean laboratories and high-cost metal evaporation and deposition processes are unnecessary. The prepared metal device has the advantages of high accuracy and low cost.

The present invention relates to a micro electrical-mechanical system (MEMS) device and a method of fabricating the same, wherein the device comprises a suspended thin film microstructure (200) arranged above a substrate (100), and is characterized in that the suspended thin film microstructure (200) includes an anchoring portion (250) adhered to the top surface (106) of the substrate (100); a suspended portion (260) arranged above the top surface (106) of the substrate (100) and having a base plane (205) configured in parallel to the substrate (100), and a base clearance is arranged between the base plane (205) and the top surface (106) of the substrate (100); the suspended portion (260) further includes a first recess portion (210) spaced at a first vertical clearance (151) with the top surface (106) of the substrate (100), the first vertical clearance (151) being configured differentially smaller than the base clearance (150). The invention is capable of providing strong mechanical and physical support force for sediment and lithographic patterns of a suspended construction unit.

The invention discloses a two-component aqueous acrylate-epoxy resin hybrid coating. The epoxy resin part comprises 35-55 parts of an acrylate-epoxy resin hybrid emulsion, 5-10 parts of titanium dioxide, 1-5 parts of zinc oxide, 20-35 parts of a filler, 0.1-1 part of an adhesion promoter, 1.1-2.5 parts of an auxiliary agent and 1-11 parts of water. The curing agent part comprises 1-3 parts of aqueous organic amine. Through use of the hybrid system of an acrylate emulsion and epoxy resin, the anticorrosion coating with a fast drying rate, high film formation density, high weatherability and excellent salt mist resistance is prepared. Through formula optimization and curing agent mixing, the coating is a metal anticorrosion waterproof coating with a long service life, good application properties, good low temperature flexibility, good corrosion resistance, high hardness and good contamination resistance. The two-component aqueous acrylate-epoxy resin hybrid coating effectively prolongs a metal device usage time limit, can be used in terrace paint, saves a cost and provides a value for the society.

The invention belongs to the field of microwave near field measurement and specifically relates to an on-site calibration device for a phased array antenna. The on-site calibration device comprises an optical probe array and a signal processing system, wherein the optical probe array is erected on a phased array antenna array face via a fixed machine rack, each optical probe in the array corresponds to an antenna unit and is used for precisely controlling distance and consistency between each optical probe and the antenna unit, the optical probe array is connected with the signal processing system via polarization maintaining optical fibers, and excitation of the antenna array face is provided by a excitation signal source in the signal processing system via a straight-through end of a directional coupler. The optical probe array does not contain any metal device, no near field radiation field of a radar antenna can be affected, measurement realness can be ensured, probes are positioned very near to the antenna units, the device cannot be affected by multipath effects produced by electromagnetic fields reflected by the ground or objects or the like and interference such as coupling effects and the like between antenna units, and measurement accuracy can be ensured.

An apparatus and process is disclosed for the electrolytic removal of metal from a device, such as a medical device. More particularly, the apparatus of the invention includes a mandrel having slots or openings therein to expose portions of a metallic device, such as a stent, to an electrolytic solution to remove metal from the exposed portion.

The invention provides a low-melting metal freezing printing system and method. The system comprises a three-dimensional mobile platform, a cryoprobe, a printing base, a liquid metal tank and a plurality of small material leaking holes formed in the edge of the liquid metal tank. The three-dimensional mobile platform is used for fixing the cryoprobe to enable the cryoprobe to move in the X direction, the Y direction and the Z direction. The liquid metal tank is used for containing a liquid metal material for metal printing. The printing base is arranged at the center of the liquid metal tank and used for bearing metal devices or patterns formed by printing in a 2D printing mode. The cryoprobe is used for utilizing high-pressure nitrogen to freeze the liquid metal material positioned on the printing base in the liquid metal tank to enable the liquid metal material to be formed. The small material leaking holes are used for recycling the redundant liquid metal material in the liquid metal tank. According to the metal freezing printing system, the switching of the 2D printing mode and a 3D printing mode can be achieved, and a manufacturing process is simple. The low-melting metal freezing printing system can work continuously, the production cycle is shortened, and the process cost is reduced.

The invention belongs to corrosion prevention technology of metal materials, in particular to an inhibitor-supported carrier and a preparation method and application thereof. The inhibitor-supported carrier comprises the following components in percentage by weight: 5 to 20 percent of acetic acid, 70 to 85 percent of water, 1 to 5 percent of carrier and the balance of supported inhibitor. The preparation method comprises the following steps of: dissolving 1 to 5 percent of chitosan solid in acid aqueous solution in percentage by weight, and uniformly stirring the solution with brute force so as to obtain a chitosan hydrosol carrier, wherein the acid aqueous solution is aqueous solution of acetic acid which comprises 5 to 20 percent of acetic acid and 70 to 85 percent of water. The inhibitor-supported chitosan hydrosol carrier supports the inhibitor and is directly coated on a corrosion-resistant metal device, or is used as an additive and added into an organic corrosion-resistant material inhibitor serving as a substrate, and then the organic corrosion-resistant material inhibitor is coated on the corrosion-resistant metal device. The inhibitor-supported carrier can be widely applied to corrosion prevention of metal materials. Because the chitosan is a natural material and has wide source, no toxins or pollution, the chitosan can prevent the metallic corrosion caused by microbes to a certain degree.

The invention relates to a method for welding a CVD diamond thick film and hard alloy. The method comprises the steps that firstly, a double-glow plasma diffusion metal device metallizes a growth face of the CVD diamond thick film, and secondly, the double-glow plasma diffusion metal device is used for welding the metallized face and a hard alloy substrate in a brazing mode. According to the method, metal atoms are evenly diffused on the surface of the growth face of the diamond thick film according to the double-glow plasma diffusion metal technology, metal carbide is formed by the metal atoms and the diamond thick film, and superior bonding strength between a metal layer and the diamond thick film is guaranteed through chemical bonding. The metallized diamond thick film has good ground surface wettability, and a welding connector with high bonding strength can be formed through the metallized diamond thick film and the hard alloy under the heating action of plasma. The surface metallization of the diamond thick film and brazing can be finished through the same device, manufacturing production cost is greatly reduced, and industrialization can be achieved.

The present invention relates to micro electroformed metal devices, belongs to the field of micro manufacture technology, and is especially process of making 3D electroformed micro structure. The making process includes the steps of pre-treatment of the substrate, making micro electroforming mold for the connecting layer, micro electroforming, preparing copper crystal seed layer, making the nickel structure layer, post-treatment and eliminating the sacrificial layer. The process can make micro cantilever structure with firm binding and small interlayer stress, and the micro cantilever structure is applied as the key device of micro sensor and micro driver.

In an electronic device having a metal device case, and an antenna disposed inside the device case, a magnetic member having a magnetic permeability higher than a magnetic permeability of the device case is placed between an inner surface of the device case and the antenna.

In an electronic device having a metal device case, and an antenna disposed inside the device case, a magnetic member having a magnetic permeability higher than a magnetic permeability of the device case is placed between an inner surface of the device case and the antenna.

The invention discloses an aluminizing liquid as well as a preparation method and application thereof. The aluminizing liquid comprises the following components by mass percent: 2-6% of Si and 2-4% of RE and the balance of Al, wherein the RE is a mixture of 25-30% of La, 55-65% of Ce and 5-10% of Pr. According to the invention, Si and rare earth elements are added in the aluminizing liquid, thereby improving the flowability of the aluminizing liquid, reducing the temperature of hot dip aluminum plating and reducing the content of oxide impurities in the aluminizing liquid; and the aluminizingliquid is used for a hot dip aluminum plating process so that the adhesion between a plated workpiece and a plating is improved, and the corrosion-resisting property of the workpiece is enhanced.

A method of protecting a group of metal devices (13, 15) installed inside a fuel tank (11), manufactured either completely or partially with composites, such as a tank located in an aircraft, against electrical discharges, according to which the following steps are carried out: a) an insulating member (21) is included at the points where the metal devices (13, 15) are fixed / attached to the fuel tank (11) to assure their electrical insulation with respect to the fuel tank (11); b) insulating inserts (23) are included in the linear metal devices (13), such as pipes, such that they are subdivided into parts (31, 33, 35) insulated from one another; c) a connection with a metal sub-structure (25) with a very low resistance is provided in each one of the insulated parts (31, 33, 35).

The invention discloses IoT (Internet of Things) based automatic sorting and recovery equipment for medical waste. The equipment comprises a medical waste collecting bucket conveying system, a medicalwaste stepped sorting system, a medical waste collecting bucket cleaning and recovery system and an IoT monitoring system, wherein the medical waste collecting bucket conveying system comprises a medical waste collecting bucket, a medical waste collecting bucket clamp seat, a metal conveying belt and an anti-falling synchronous stop lever; the medical waste stepped sorting system comprises a vibrating screen group, an air separation system, a crushing system and a water separation system; the medical waste collecting bucket cleaning and recovery system comprises a sprinkling system, a disinfection system, a drying system and an output system; the IoT monitoring system comprises multiple groups of monitoring cameras. With adoption of the equipment, plastic products, glass products, gauze,absorbent cotton and various sharp metal devices can be automatically sorted and recovered from waste, the sharp metal devices are smashed and recovered, the medical waste collecting bucket is cleanedand disinfected, and the sorting state of the sorting equipment is conveniently mastered by a worker in real time on the basis of the IoT.

The invention relates to a method for preparing porous metal, in particular to a method for preparing porous metal through high-temperature oxidation and reduction in order to solve the problems that an existing micro-nano-porous metal preparation technology mainly concentrates on the initial formation process of metal materials, the method is complex and seriously relies on a die template, and the requirements for production equipment are high. The method for preparing the porous metal includes the steps of firstly, cleaning the metal materials, secondly, heating a carrier to the temperature of 100-850 DEG C under the protection of inert gas and exposing the metal materials in oxidization gas for oxidation treatment, and thirdly, exhausting the oxidation gas, raising the temperature to 300-850 DEG C, exposing metal oxide in reduction gas for reduction treatment, and finally obtaining the porous metal after cooling under the protection of inert gas. A porous structure is formed on the surface of and inside the metal by directly using the oxidation gas and reduction gas, the preparation technology is simple, and secondary processing can be achieved on a prepared complex metal device.

A reversible test probe and test probe tip. In one embodiment, a test probe tip is reversible relative to a test probe body. The reversible probe has a first probe tip at a first end and a second probe tip at a second end. The test probe body has an opening operable to receive the first probe tip and the second probe tip. When the first probe tip is positioned in the opening, the first probe tip is electrically coupled to a metal device in the test probe body. When the second probe tip is positioned in the opening, the second probe tip is electrically coupled to a metal device in the test probe body. In another embodiment, a test probe having two test probe tips is reversible relative to a test lead.

The invention relates to movable construction waste recycling treatment equipment and an application method. The equipment comprises a machine case, a drying device, a separation device, a metal removing device, a pulverizing device and a collecting box. The drying device is arranged at the upper end of the machine case, the separation device is arranged at the lower end of the drying device, themetal removing device is arranged at the lower end of the separation device, and the pulverizing device is arranged at the lower end of the metal removing device. The collecting box comprises a plastic collecting box, a wood block collecting box and a concrete collecting box. According to the application method, construction waste is subjected to drying treatment firstly and then subjected to separation treatment, plastics and wood blocks are separated out, then, the construction waste is subjected to metal impurity removal treatment, and finally concrete is subjected to pulverizing treatment.The movable construction waste recycling treatment equipment achieves recycling and classifying treatment on the construction waste doped with the metal, the wood blocks and the plastics at the sametime, meanwhile, movable treatment of the construction waste at any position is achieved, and the construction waste recycling treatment quality is improved.