Patents by Inventor Beth LaFayette

Beth LaFayette has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Methods to stop copper attach by alkaline etching agents such as ammonia and monoethanol amine (MEA)
    Publication number: 20060102879
    Abstract: A corrosive composition, such as an alkaline aqueous carbon dispersion, a cleaner, a cleaner conditioner, or a conditioner, comprises a corrosion inhibitor, e.g., benzotriazole. The corrosion inhibitor is present in an amount effective to reduce or stop the dissolution of metal from a metallic surface, such as a printed circuit board, in contact with the composition. A method to reduce or stop the dissolution of metal from a metallic surface in contact with a corrosive composition, and a method to stabilize or recover a corrosive composition containing metal contaminants by adding an effective amount of a corrosion inhibitor to the corrosive composition.
    Type: Application
    Filed: December 29, 2005
    Publication date: May 18, 2006
    Inventors: Roger Bernards, Beth LaFayette, Thao Pham
  • Additives to stop copper attack by alkaline etching agents such as ammonia and monoethanol amine (MEA)
    Publication number: 20050126429
    Abstract: A corrosive composition, such as an alkaline aqueous carbon dispersion, a cleaner, a cleaner conditioner, or a conditioner, comprises a corrosion inhibitor, e.g., benzotriazole. The corrosion inhibitor is present in an amount effective to reduce or stop the dissolution of metal from a metallic surface, such as a printed circuit board, in contact with the composition. A method to reduce or stop the dissolution of metal from a metallic surface in contact with a corrosive composition, and a method to stabilize or recover a corrosive composition containing metal contaminants by adding an effective amount of a corrosion inhibitor to the corrosive composition.
    Type: Application
    Filed: December 12, 2003
    Publication date: June 16, 2005
    Inventors: Roger Bernards, Beth LaFayette, Thao Pham