The present invention is directed to an aqueous post-strip rinsing composition, comprising (1) water; (2) at least one water-soluble organic acid; and (3) at least one water-soluble surface-active agent, the rinse solution having a pH in the range from about 2.0 to about 5.0. The present invention is also directed to a method of using the above composition to remove residues from a semiconductor substrate.

Aqueous rinsing composition

A tubular conduit for the transport of fluids under pressure includes a flexible outer tubular sheath, a group of stiffening reinforcements, a flexible inner tubular sheath or tube, and if applicable at least one intermediate flexible tubular sheath, and a heater in the form of electrically conductive wires, connected to an electric power source and releasing heat by Joule effect, said wires being arranged on the length of the conduit. Also a plurality of electrically conductive wires are arranged in at least one layer in which the wires are parallel to one another and spirally wound around the axis of the conduit, the layers of conductive wires being placed between two flexible tubular sheaths of the conduit, the conductive wires being noncontiguous to one another and each resting by surface contact on the underlying tubular sheath.

Flexible tubular conduit with heating means and stiffening means for transporting pressurized fluids

A review of patent publications on preparation, deposition, characterization, and application of the catalytic coatings is given in this paper with view on their application in microstructured reactors for heterogeneous gas-phase processing. The paper consists of two main parts: in the first part the total overview of patents, the distribution by coun- tries and patent applicants is shown. The main topics (coatings preparation, application, removal etc.) are discussed in the second part of the review, including description of some selected patent publications. The aim of the present review is to show the 'hot' topics of patent publications on catalytic coatings and the main interests of the big patentees; special atten- tion is given to catalytic coatings on the channel walls in microstructured reactors.

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Review of Patent Publications from 1990 to 2010 on Catalytic Coatings on Different Substrates, Including Microstructured Channels: Preparation, Deposition Techniques, Applications

A composition and process for cleaning an aluminum-containing article is disclosed. The process comprises contacting a debris-laden aluminum-containing article with a composition at conditions effective to do at least one of the following: (1) remove at least a portion of the debris from the aluminum-containing article and (2) condition at least a portion of the debris for removal from the aluminum-containing article. The composition comprises water; at least one polycarboxylic acid component selected from the group consisting of polycarboxylic acids, salts of polycarboxylic acids and mixtures thereof; at least one acidic component in an amount effective to increase the solubility of the polycarboxylic acid component in the composition; and at least one acid acting enzyme in an amount effective to at least facilitate the removal of debris from an aluminum-containing article contacted with the composition.

Aluminium cleaning composition and process

The invention provides a process for recovering abrasive grains from vitreous bonded materials by boiling the material in an aqueous solution of an alkali metal base

Reclamation of abrasive grain

A method and composition is disclosed for removing oxide film from metals and alloys and for detersification of objects. The composition is at least a 1% aqueous solution of gluconic acid or its alkali metal including ammonium salts, citric acid or its alkali metal including ammonium salts, and tartaric acid or its alkali metal including ammonium salts, at least one of these materials being acid in sufficient strength to provide a pH of 4 or less. Also, preferably a non-ionic surfactant is included.

Method for detersifying and oxide coating removal

A method and composition for removing organic coatings or residues from a substrate is provided, which composition includes an organic carrier of ethanolamines and non-ionic alkylphenol ethoxylate surfactants and mixtures thereof and potassium hydroxide and being free of water. In use, the composition is formed by mixing the ethanolamines and the surfactants and adding the potassium hydroxide. The composition is maintained above the boiling point of water in liquid state, preferably from about 225° F. to about 350° F., and the workpieces having organic coatings or residues thereon, are immersed in the heated composition. If the composition is maintained essentially free of water, the alkali metal hydroxide will not attack substrates that would normally be attacked by alkali metal hydroxides when sufficient water is present to ionize the potassium hydroxide, such as zinc, aluminum and magnesium.

Method and composition for removing organic coatings from a substrate

According to the present invention a saturated aqueous solution comprising at least one alkali metal hydroxide and at least one alkali metal nitrate is provided which can be spray added to a fused anhydrous bath which contains alkali metal materials.

Aqueous solution of alkali metal compositions

A method and apparatus is disclosed for prevention of clogging of exhaust systems, especially the exhaust hoods and ducts above fused salt baths onto which salts splatter as they are being added by spraying from aqueous solutions. A fluid tight jacket surrounds a portion of the exhaust pipe and hood and a cooling fluid, preferably the aqueous solution of the salt being added is flowed through the jacket. This will condense the water of the solvent onto the inside of the hood and duct dissolving and washing away any splattered salt.

Method and apparatus for prevention of clogging of exhaust systems

of EP01644371. Use of an aqueous solution containing at least one alkali hydroxide and at least one alkali nitrate for making up the salt content of molten salt baths which contain alkali hydroxide and alkali nitrate by atomising the solution onto the hot bath surface, characterized in that the solution is saturated in alkali hydroxide alkaki nitrate and optionally further compounds to such an extent that it is liquid at 508C, is still sufficiently viscous for atomisation and is stable and is free from sediment at between 50 and 1108C.

John F. Pilznienski

Papers

Method for detersifying and oxide coating removal

Method and composition for removing organic coatings from a substrate

Aqueous solution of alkali metal compositions

Method and apparatus for prevention of clogging of exhaust systems

Solution for replenishing the salt content of molten-salt baths