Patents by Inventor Donald E. Herr

Donald E. Herr 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).

  • Dye attach adhesives for use in microelectronic devices
    Patent number: 6355750
    Abstract: A thermoplastic or thermosetting adhesive for bonding an electronic component to a substrate in which the adhesive is cured in situ from a curable composition comprises one or more poly- or mono-functional maleimide compounds, or one or more poly- or mono-functional vinyl compounds other than maleimide compounds, or a combination of maleimide and vinyl compounds, a curing initiator and optionally, one or more fillers.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: March 12, 2002
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventor: Donald E. Herr
  • Curable electron donor compounds
    Publication number: 20020010281
    Abstract: Electron donor compounds, suitable for use as adhesives or as components in adhesives, contain a carbon to carbon double bond attached to an aromatic ring and conjugated with the unsaturation in the aromatic ring.
    Type: Application
    Filed: August 3, 2001
    Publication date: January 24, 2002
    Inventors: Osama M. Musa, Donald E. Herr, Nikola A. Nikolic
  • Die attach adhesives for use in microelectronic devices
    Publication number: 20020007042
    Abstract: A thermoplastic or thermosetting adhesive for bonding an electronic component to a substrate in which the adhesive is cured in situ from a curable composition comprises one or more poly- or mono-functional maleimide compounds, or one or more poly- or mono-functional vinyl compounds other than maleimide compounds, or a combination of maleimide and vinyl compounds, a curing initiator and optionally, one or more fillers.
    Type: Application
    Filed: February 1, 2001
    Publication date: January 17, 2002
    Inventors: Donald E. Herr, Rose Ann Schultz
  • Photoresist developable in aqueous base made from acid-functional .beta.-hydroxy thiol resin
    Patent number: 5925719
    Abstract: A substantially ester-free, acid-functional thiol-functional resin is prepared via the reaction of an epoxy compound with a thiolacetic acid in the presence of an amine catalyst and heat to form a thioacetate derivative which is hydrolyzed to yield an ester-free, .beta.-hydroxy thiol-functional resin. The .beta.-hydroxy thiol-functional resin can then be reacted with a material capable of insert a group conferring aqueous-base developability such as a cyclic anhydride.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: July 20, 1999
    Assignee: MacDermid, Incorporated
    Inventors: John S. Hallock, Donald E. Herr
  • Photocurable composition based on acid functional primary resinous mercaptans
    Patent number: 5919602
    Abstract: Acid functional primary thiols having no hydroxy substituents in the beta position, and also having aromatic backbones, can be combined with unsaturated resins to make aqueous base-developable, photoimaging compositions such as solder masks and resists.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: July 6, 1999
    Assignee: MacDermid Acumen, Inc.
    Inventors: Donald E. Herr, John S. Hallock