1904 results about "Chemical solution" patented technology

An object is to suppress differences in concentration between processing gases supplied to a plurality of works in a chemical solution vaporizing tank. The chemical solution vaporizing tank includes a tank body having a plurality of vaporizing chambers formed by laterally and airtightly partitioning an internal space of the tank body, a chemical solution passage located under a liquid level in each vaporizing chamber and formed at each partition member for passing the chemical solution between the vaporizing chambers, and a gas passage located above the liquid level in each vaporizing chamber and formed at the partition member to communicate the vaporizing chambers with each other for uniformizing pressures in the respective vaporizing chambers. A quantity of the channel layer in each vaporizing chamber is controlled by managing, e.g., the liquid level.

It is aimed at providing a vaporization apparatus and a vaporization method capable of keeping track of a progressive condition of clogging of the apparatus. It is also aimed at providing a vaporization apparatus and a vaporization method capable of eliminating clogging prior to occurrence of complete clogging, without disassembling the apparatus. It provides a vaporization apparatus for introducing a carrier gas from one end of a gas passage and for feeding, the carrier gas including a material solution, from the other end of the gas passage to a vaporization part to thereby vaporize the material solution, characterized in that a mass flow controller (MFC) is provided at the one end of the gas passage, and means for detecting a pressure within the gas passage is provided. The vaporization apparatus is characterized in that the same is provided with means for introducing a chemical solution capable of dissolving therein matters deposited or sticked to the inside of the gas passage, into the gas passage.

A drug-loaded microparticle is applied to a medical device for subsequent application to biological tissues. A method of formulating a drug-loaded microparticle and applying it to the surface of a medical device, such as a stent, is disclosed. The drug-loaded microparticle is formulated by combining a drug with various chemical solutions. Specified sizes of the microparticles and amounts of drug(s) contained within the microparticles may be varied by altering the proportions of the chemicals/solutions. In addition to various drugs, therapeutic substances and radioactive isotopes may also be loaded into the microparticles. The drug-loaded microparticle are suspended in a polymer solution forming a polymer matrix. The polymer matrix may be applied to the entire surface or only selected portions of the medical device via dipping, spraying or combinations thereof.

A disposable downhole tool comprises a material that dissolves when exposed to a chemical solution, an ultraviolet light, a nuclear source, or a combination thereof. In an embodiment, the material comprises an epoxy resin, a fiberglass, or a combination thereof. In another embodiment, the material comprises a fiberglass and a binding agent. The material may also be customized to achieve a desired dissolution rate of the tool. In an embodiment, the disposable downhole tool further comprises an enclosure for storing the chemical solution. The tool may also comprise an activation mechanism for releasing the chemical solution from the enclosure. In an embodiment, the disposable downhole tool is a frac plug. In another embodiment, the tool is a bridge plug. In yet another embodiment, the tool is a packer.

A self-regulating gas generator that, in response to gas demand, supplies and automatically adjusts the amount of gas (e.g., hydrogen or oxygen) catalytically generated in a chemical supply chamber from an appropriate chemical supply, such as a chemical solution, gas dissolved in liquid, or mixture. The gas generator may employ a piston, rotating rod, or other element(s) to expose the chemical supply to the catalyst in controlled amounts. The gas generator may be used to provide gas for various gas consuming devices, such as a fuel cell, torch, or oxygen respiratory devices.

A vaporization system for an inhalable substance includes a sealed cartridge. The sealed cartridge contains the chemical solution to be vaporized, a heating element which vaporizes the solution, and a wicking material for retaining the solution and bringing it into contact with the heating element through capillary action. The sealed cartridge may be disposable, having inexpensive elements so the cartridge can be replaced with little cost. Alternatively the sealed cartridge may be fully integrated with other components into a base unit, which may be disposable or may include a refill port which allows a user to refill the sealed cartridge with solution once the contained solution has been fully vaporized. A power source connects to the heating element and is activated by a switch that may be a breath detector. A disposable mouthpiece may be connected to the cartridge. The mouthpiece has an airway through which the vaporized solution is inhaled. The airway is restricted by a trap that prevents unvaporized droplets of the solution from passing through the airway into a user's mouth.

A first structure is formed, having a contact plug formed on the bottom of a first opening in an interlayer insulating film, a second opening formed through the interlayer insulating film to reach a semiconductor substrate, and a third opening formed through the interlayer insulating film to reach a polymetal gate electrode. A cobalt layer is deposited on the surface of the structure, and thermally treated to form a cobalt silicide layer on the surface of the contact plug and on the bottom face of the second opening. The structure is then treated to remove the cobalt, in the state in which the cobalt silicide layer is formed, with the use of a chemical solution capable of dissolving cobalt but not the polymetal.

An apparatus for processing a substrate comprising a substrate holding mechanism for holding the substrate substantially horizontally, a chemical solution discharge/suction mechanism having a chemical solution discharge/suction portion which has a chemical solution outlet for discharging a chemical solution onto the substrate and chemical solution inlets for sucking up the chemical solution present on the substrate, and a chemical solution supply/suction system for supplying the chemical solution to the chemical solution discharge/suction mechanism simultaneously with sucking the chemical solution by the chemical solution supply/suction mechanism.

A chemical solution injection system, wherein a RFID chip (230) is mounted on a chemical liquid syringe (200) in the state of being wrapped around the outer surface of the cylinder member (210) thereof. An amplification antenna (240) wrapped one turn around the outer surface of the cylinder member (210) is disposed at the front of the RFID chip (230) parallel with each other. Since the communication performance of the RFID chip is increased by the amplifying antenna, the RFID chip (230) of the chemical solution syringe (200) is allowed to satisfactorily communicate with the RFID reader (131) of injection head (110).

An injection device with puncture function includes, in a single casing 30, a cylindrical cartridge 11 in which insulin 12 is enclosed, a cartridge holder 14 to which the cartridge 11 is inserted, a needle 16 inserted at a front end 11a of the cartridge 11, a reciprocation means 32 for reciprocating the cartridge 11 toward the needle 16, and an extrusion means 23 for extruding the insulin 12 from a rear end11b of the cartridge 11 toward the needle 16, and the motion speed and the motion amount of the reciprocation means 32 are made variable.

Apparatuses and methods suitable for (i) measuring lithological or petro-physical properties of reservoir core sample including shale rock; (ii) evaluating the degree of formation damage caused by foreign fluid into formation; (iii) conducting dynamic experiments, such as water flooding, chemical solution flooding, and supercritical CO₂ injection to displacing oil tests; (iv) simulating physical radial flow experiments using reservoir core sample(s) at conditions of temperature up to 150° C. and pressure up to 6000 psi, are provided involving radial flow through the core sample(s) having at least partially hollow centers in an axial direction, up to annular axial cross-sections.

In immersion exposure, a resist pattern forming method suppressing resist pattern defects comprises mounting a substrate formed a resist film thereon and a reticle formed a pattern thereon onto an exposure apparatus, supplying a first chemical solution onto the resist film to selectively form a first liquid film in a local area on the resist film and draining the solution, the first liquid film having a flow and being formed between the resist film and a projection optical system, transferring the pattern of the reticle to the resist film through the first liquid film to form a latent image, supplying a second chemical solution onto the resist film to clean the resist film, heating the resist film, and developing the resist film to form a resist pattern from the resist film.

A blender system is provided that maintains a chemical solution bath at desired concentrations. The blender system includes a blender unit configured to receive and blend at least two chemical compounds and deliver a solution including a mixture of compounds at selected concentrations to a tank that retains a selected volume of a chemical solution bath. The blender system further includes a controller configured to maintain at least one compound within a selected concentration range in the chemical solution bath. The controller controls at least one of operation of the blender unit to maintain the concentration of the compound within a selected concentration range within the solution delivered to the tank, and a change in flow rate of solution into and out of the tank when a concentration of the compound within the chemical solution bath falls outside of a target range.

A system and method is disclosed for controlling chemical dispense operations based on a conductivity offset determined for a chemical solution. The chemical dispense operations are performed by or in conjunction with operation of a utility device, such as a warewashing machine. The chemical solution is formed in a solution tank device by combining water with at least one component chemical product. The conductivity offset, which is the conductivity of the water, is used to normalize the conductivity estimated for the chemical solution relative to the component chemical product in the solution. During various points in time during operation of the utility device, the normalized conductivity is compared to a conductivity setpoint, and if the normalized conductivity falls below the conductivity setpoint, a specified volume of the component chemical product is supplied to the solution tank.

A method for making a device includes providing a tubular member which will be formed into the device, masking at least a portion of the inner surface of the tubular member with a removable sacrificial material, selectively removing a portion of the tubular member and sacrificial material using a laser device, and mechanically removing the sacrificial material from the inner surface of the tubular member. The method may also include applying a chemical solution to the tubular member and sacrificial material which primarily attacks the either the tubular member or sacrificial material.

The invention discloses a preparation method of an MWT (Metal Wrap Through) solar cell, comprising the following steps of: (1) carrying out phosphorous diffusion by using a p-type crystal silicon substrate; (2) etching one surface of the crystal silicon substrate by using a chemical solution to remove a phosphorous diffused layer so as to form a polished surface; (3) depositing a passivated antireflective film on the other surface of the crystal silicon substrate to form a light receiving surface; (4) forming a conductive through hole on the crystal silicon substrate by using laser lights; (5) filling a conductive silver paste into the conductive through hole by using a wire mesh on the polished surface so as to form an emitter contact electrode; (6) printing an aluminum paste on the polished surface by using a wire mesh so as to form a base contact electrode; (7) printing a silver contact grid line on the light receiving surface and connecting the silver contact grid line with the conductive through hole; and (8) forming the ohmic contact between a metal and the silicon substrate through sintering so as to finish the solar cell making process. The preparation method of the MWT (Metal Wrap Through) solar cell, disclosed by the invention, has the advantages of simple process flow and easiness in operation, is completely compatible with a solar cell production line widely applied in the current photovoltaic industry and is suitable for mass production.

The invention discloses a triaxial test apparatus of soil under water-soil chemical action and a method thereof, and relates to a testing technique of soil under a special environment. The device comprises a device frame (10), a triaxial pressure chamber (20), a confining pressure exerting and deformation test device (30), a solution cyclic displacement device (40), a stress/strain control loading device (50), a displacement sensor (60) and a data collecting and processing device (70). The uniformity of ingredients and concentration of internal pore water solution of a specimen is ensured by solution circulation; the change rules of soil deformation and strength caused by chemical solution transfusion under constant stress can be simulated and researched; the confining pressure exerting principle is improved; accurate measurement of body deformation is achieved; and the conversion of strain control and stress control can be achieved.

The invention discloses a preparation method of spinel type lithium manganese oxide for a spherical high-voltage anode material. The preparation method comprises the following steps of: preparing the spinel type lithium manganese oxide for the spherical high-voltage anode material by utilizing a hydrothermal-solid-phase two-step method; uniformly mixing a nickel source, a manganese source and a doped element chemical solution with a sodium/ammonium carbonate solution; adding surfactant into the mixed solution and preparing under a hydrothermal condition to prepare a spherical lithium manganese carbonate sediment; washing and drying, and then sintering to obtain a spherical lithium manganese oxide; mixing the oxide with a lithium source by liquid-phase ball milling, and drying; and finally, sintering to obtain an anode active material. According to the preparation method disclosed by the invention, the synthesis method is simple, the process is easy to control and the doped elements are introduced; physical and chemical properties of the material are optimized and the grain size of the material is uniform; and the discharge capacity is high and the multiplying power performance is good.