Patents Represented by Attorney, Agent or Law Firm S. Mathew Cairns
  • Control of breakdown products in electroplating baths
    Patent number: 6508924
    Abstract: Disclosed are methods for analyzing additive breakdown products in electroplating baths as well as methods of controlling the presence of such breakdown products in electroplating baths.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: January 21, 2003
    Assignee: Shipley Company L.L.C.
    Inventors: Luis A. Gomez, Rozalia Beica, Denis Morrissey, Eugene N. Step
  • Stabilization of 3-isothiazolone solutions
    Patent number: 6008238
    Abstract: Disclosed is a stable dilute solution composition of a 3-isothiazolone compound selected from the group consisting of 5-chloro-2-methyl-3-isothiazolone, 2-methyl-3-isothiazolone, 5-chloro-2-ethyl-3-isothiazolone, 2-ethyl-3-isothiazolone, 4,5-dichloro-2-methyl-3-isothiazolone, and mixtures thereof in water having extremely low levels of copper ion and an oxidant.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: December 28, 1999
    Assignee: Rohm and Haas Company
    Inventors: Beverly Jean El A'mma, John Robert Mattox