Abstract:
A composition and method using same for removing photoresist and/or processing residue from a substrate are described herein. In one aspect, there is provided a composition for removing residue consisting essentially of: an acidic buffer solution having an acid selected from a carboxylic acid or a polybasic acid and an ammonium salt of the acid in a molar ratio of acid to ammonium salt ranging from 10:1 to 1:10; an organic polar solvent that is miscible in all proportions in water; a fluoride, and water wherein the composition has a pH ranging from about 3 to about 7.
Abstract:
A lubricating composition which may contain up to 70 weight percent abrasive grit material for use with wire saw and slicing apparatus for cutting or slicing hard and brittle materials. The composition contains abrasive particles suspended in a mixture of high and low molecular weight polyalkylene glycols and a suspension agent. The viscosity of the composition is about 50 to 700 cps.
Abstract:
An aqueous and basic stripping and cleaning composition is provided which contains a hydroxylamine, ammonium fluoride, water and optionally DMSO. The pH of the composition is greater than about 8. Also provided is a method of stripping and cleaning utilizing the compositions of the invention.
Abstract:
Organic stripping composition for photoresists comprising organic polar solvents and basic amines which includes an inhibitor which forms a coordination complex with a metal.
Abstract:
An improved pellicle for use in projection printing comprises a pellicle in which the transparent film is formed from a specific polyvinyl butyral resin from a casting composition which is a mixture of the specific polyvinyl butyral resin and dimethylformamide.
Abstract:
A sofa bed has a stationary framework and a foldable bed frame connected to and foldable into the framework, the foldable frame having an outer section connected to and pivotal relative to a body section, the outer section overlying the body section in the folded position of the frame to form a seat. The outer section has a plurality of individual seat support elements extending thereacross transversely to the sofa back. The individual elements are spaced apart in a direction parallel to that axis, and each of the individual elements is downwardly deflectable independently of the other when a person sits on said seat, and is arched so that a concavity is formed in the sofa form for the sofa cushions, and as that the mattress is compressed. A spring edge is mounted on and extends above a front rail of the stationary framework to form the front supporting edge of the seat.
Abstract:
There is provided a method and composition for rinsing sliced ingots into wafers from a wire saw cutting operation. The method uses an alkoxylated alcohol diluted in water alone or with a polyalkyl siloxane when the bath has a dynamic flow of water to prevent foaming.
Abstract:
Corrosion inhibiting composition for use in aqueous or semi-aqueous stripping, cleaning, abrasive lapping and abrasive slurry compositions that form 5, 6, 7, or 8-membered chelating rings with a base metal together with a film forming polymeric chelation agent. Optionally there is included an oxygen scavenger.
Abstract:
An aqueous stripping composition comprising a mixture of about 55% to 70% by weight of a polar amine solvent, about 22.5 to 15% by weight of a basic amine, especially hydroxylamine, a corrosion inhibitor and water. The stripping composition is effective for stripping photoresists, residues from plasma process generated organic, metal-organic materials, inorganic salts, oxides, hydroxides or complexes in combination with or exclusive of organic photoresist films at low temperatures.
Abstract:
The invention provides a method for purification of hydroxylamine so as to have a substantial reduction of cations and anions. The method involves passing a solution of hydroxylamine through at least one strong acid ion exchange bed which has been pretreated with dilute hydrochloric acid and then through at least one strong base anion exchange resin bed which has been pretreated or regenerated with a non-metal amino or hydroxide base solution.