Patents Examined by Gregory N. Del Cotto
  • Patent number: 6194366
    Abstract: A cleaning solution is provided for cleaning copper-containing microelectronic substrates, particularly for post-CMP or Via formation cleaning. The cleaning solution comprises a quaternary ammonium hydroxide, an organic amine, a corrosion inhibitor, and water. A preferred cleaning solution comprises tetramethylammonium hydroxide, monoethanolamine, gallic acid, and water. The pH of the cleaning solution is greater than 10.
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: February 27, 2001
    Assignee: ESC, Inc.
    Inventors: Shahriar Naghshineh, Jeff Barnes, Yassaman Hashemi, Ewa B. Oldak
  • Patent number: 6114295
    Abstract: A system for dry cleaning soils from fabrics is described which contains densified carbon dioxide combined with a selected surfactant. The densified carbon dioxide is used in a temperature range of about -78.5.degree. C. to about 100.degree. C. and a pressure range of about 14.7 psi to about 10,000 psi. The surfactant is selected from one of two groups of compounds having a formula ##STR1## as described in the text or a second group of siloxane compounds having a formula [AB].sub.y as described. A process for using the dry cleaning system is also described.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: September 5, 2000
    Assignee: Lever Brothers Company
    Inventor: Dennis Stephen Murphy
  • Patent number: 6107266
    Abstract: The present invention relates to a process for producing coated bleach activator granules in which bleach activator base granules are coated with a coating substance and are simultaneously and/or subsequently thermally conditioned.
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: August 22, 2000
    Assignee: Clariant GmbH
    Inventors: Johannes Himmrich, Georg Borchers