BUTYLPYRROLIDONE BASED CLEANING AGENT FOR REMOVAL OF CONTAMINATES FROM ELECTRONIC AND SEMICONDUCTOR DEVICES

• Main Authors: SOUCY, Kevin, BIXENMAN, Michael L, JONES, Haley, DOYEL, Kyle J
• Format: Patent
• Language: English; French
• Published: 02.05.2019
• Subjects: ADHESIVES; ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES; APPARATUS SPECIALLY ADAPTED THEREFOR; BASIC ELECTRIC ELEMENTS; CANDLES; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CHEMISTRY; CINEMATOGRAPHY; CLEANING; CLEANING IN GENERAL; DETERGENT COMPOSITIONS; DETERGENTS; DYES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; ELECTROGRAPHY; FATTY ACIDS THEREFROM; HOLOGRAPHY; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; MATERIALS THEREFOR; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORIGINALS THEREFOR; PAINTS; PERFORMING OPERATIONS; PHOTOGRAPHY; PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES; PHYSICS; POLISHES; PREVENTION OF FOULING IN GENERAL; PRINTED CIRCUITS; RECOVERY OF GLYCEROL; RESIN SOAPS; SEMICONDUCTOR DEVICES; SOAP OR SOAP-MAKING; TRANSPORTING; USE OF SINGLE SUBSTANCES AS DETERGENTS

A composition effective for removing contaminates from an electronic device either as a concentrated material or when diluted with water. The composition designed for effective removal of undesirable contaminates from an electronic device, including but not limited to, solder flux and polymeric residues. The composition contains butylpyrrolidone and an alkali and has a pH of greater than 7.1 and a pKa less than 12. The composition may contain additional optional solvents and additives to enhance cleaning of articles or to impart other properties to the composition. The composition can be contacted with a surface to be cleaned in a number of ways and under a number of conditions depending on the manufacturing or processing variables present. La présente invention concerne une composition efficace pour éliminer des contaminants d'un dispositif électrique soit sous la forme d'un matériau concentré, soit lorsqu'elle est diluée avec de l'eau. La composition est conçue pour éliminer efficacement des contaminants indésirables d'un dispositif électronique, y compris, mais de façon non limitative, des flux de soudure et des résidus polymères. La composition contient de la butylpyrrolidone et un alcali et présente un pH supérieur à 7,1 et un pKa inférieur à 12. La composition peut contenir des solvants et des additifs facultatifs supplémentaires pour améliorer le nettoyage d'articles ou pour conférer d'autres propriétés à la composition. La composition peut être mise en contact avec une surface devant être nettoyée d'un certain nombre de manières et sous un certain nombre de conditions en fonction des variables de fabrication ou de traitement présentes.