Patents by Inventor Daniel A. Koos

Daniel A. Koos 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).

  • Patent number: 10216613
    Abstract: A system debugs software code and performs a method of debugging software code. The method includes starting execution of an instantiation of a process within the software code and determining whether the instantiation of the process corresponds with any entry in a database of reserved process identifiers (PIDs) and thread identifiers (TIDs). The system also includes assigning the PID and the TID from among the reserved PIDs and the TIDs in the database to the instantiation of the process based on the instantiation of the process corresponding with any entry in the database.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: February 26, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kurosh Khan-Afshar Mohammadi, Daniel A. Koo Mo Shan, Geert Oost, Robert W. Thompson
  • Publication number: 20180052760
    Abstract: A system debugs software code and performs a method of debugging software code. The method includes starting execution of an instantiation of a process within the software code and determining whether the instantiation of the process corresponds with any entry in a database of reserved process identifiers (PIDs) and thread identifiers (TIDs). The system also includes assigning the PID and the TID from among the reserved PIDs and the TIDs in the database to the instantiation of the process based on the instantiation of the process corresponding with any entry in the database.
    Type: Application
    Filed: November 9, 2016
    Publication date: February 22, 2018
    Inventors: Kurosh Khan-Afshar Mohammadi, Daniel A. Koo Mo Shan, Geert Oost, Robert W. Thompson
  • Patent number: 8481432
    Abstract: An etching process for selectively etching exposed metal surfaces of a substrate and forming a conductive capping layer over the metal surfaces is described. In some embodiments, the etching process involves oxidation of the exposed metal to form a metal oxide that is subsequently removed from the surface of the substrate. The exposed metal may be oxidized by using solutions containing oxidizing agents such as peroxides or by using oxidizing gases such as those containing oxygen or ozone. The metal oxide produced is then removed using suitable metal oxide etching agents such as glycine. The oxidation and etching may occur in the same solution. In other embodiments, the exposed metal is directly etched without forming a metal oxide. Suitable direct metal etching agents include any number of acidic solutions. The process allows for controlled oxidation and/or etching with reduced pitting.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: July 9, 2013
    Assignee: Novellus Systems, Inc.
    Inventors: Steven T. Mayer, Daniel A. Koos, Eric Webb
  • Publication number: 20110223772
    Abstract: An etching process for selectively etching exposed metal surfaces of a substrate and forming a conductive capping layer over the metal surfaces is described. In some embodiments, the etching process involves oxidation of the exposed metal to form a metal oxide that is subsequently removed from the surface of the substrate. The exposed metal may be oxidized by using solutions containing oxidizing agents such as peroxides or by using oxidizing gases such as those containing oxygen or ozone. The metal oxide produced is then removed using suitable metal oxide etching agents such as glycine. The oxidation and etching may occur in the same solution. In other embodiments, the exposed metal is directly etched without forming a metal oxide. Suitable direct metal etching agents include any number of acidic solutions. The process allows for controlled oxidation and/or etching with reduced pitting.
    Type: Application
    Filed: May 26, 2011
    Publication date: September 15, 2011
    Inventors: Steven T. Mayer, Daniel A. Koos, Eric Webb
  • Patent number: 7972970
    Abstract: An etching process for selectively etching exposed metal surfaces of a substrate and forming a conductive capping layer over the metal surfaces is described. In some embodiments, the etching process involves oxidation of the exposed metal to form a metal oxide that is subsequently removed from the surface of the substrate. The exposed metal may be oxidized by using solutions containing oxidizing agents such as peroxides or by using oxidizing gases such as those containing oxygen or ozone. The metal oxide produced is then removed using suitable metal oxide etching agents such as glycine. The oxidation and etching may occur in the same solution. In other embodiments, the exposed metal is directly etched without forming a metal oxide. Suitable direct metal etching agents include any number of acidic solutions. The process allows for controlled oxidation and/or etching with reduced pitting.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: July 5, 2011
    Assignee: Novellus Systems, Inc.
    Inventors: Steven T. Mayer, Daniel A. Koos, Eric Webb
  • Publication number: 20090283499
    Abstract: An etching process for selectively etching exposed metal surfaces of a substrate and forming a conductive capping layer over the metal surfaces is described. In some embodiments, the etching process involves oxidation of the exposed metal to form a metal oxide that is subsequently removed from the surface of the substrate. The exposed metal may be oxidized by using solutions containing oxidizing agents such as peroxides or by using oxidizing gases such as those containing oxygen or ozone. The metal oxide produced is then removed using suitable metal oxide etching agents such as glycine. The oxidation and etching may occur in the same solution. In other embodiments, the exposed metal is directly etched without forming a metal oxide. Suitable direct metal etching agents include any number of acidic solutions. The process allows for controlled oxidation and/or etching with reduced pitting.
    Type: Application
    Filed: July 30, 2007
    Publication date: November 19, 2009
    Inventors: Steven T. Mayer, Daniel A. Koos, Eric Webb
  • Patent number: 7531463
    Abstract: An etching process for selectively etching exposed metal surfaces of a substrate and forming a conductive capping layer over the metal surfaces is described. In some embodiments, the etching process involves oxidation of the exposed metal to form a metal oxide that is subsequently removed from the surface of the substrate. The exposed metal may be oxidized by using solutions containing oxidizing agents such as peroxides or by using oxidizing gases such as those containing oxygen or ozone. The metal oxide produced is then removed using suitable metal oxide etching agents such as glycine. The oxidation and etching may occur in the same solution. In other embodiments, the exposed metal is directly etched without forming a metal oxide. Suitable direct metal etching agents include any number of acidic solutions. The process allows for controlled oxidation and/or etching with reduced pitting.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: May 12, 2009
    Assignee: Novellus Systems, Inc.
    Inventors: Daniel A. Koos, Steven T. Mayer, Heung L. Park, Timothy Patrick Cleary, Thomas Mountsier
  • Patent number: 7338908
    Abstract: An etching process for selectively etching exposed metal surfaces of a substrate and forming a conductive capping layer over the metal surfaces is described. In some embodiments, the etching process involves oxidation of the exposed metal to form a metal oxide that is subsequently removed from the surface of the substrate. The exposed metal may be oxidized by using solutions containing oxidizing agents such as peroxides or by using oxidizing gases such as those containing oxygen or ozone. The metal oxide produced is then removed using suitable metal oxide etching agents such as glycine. The oxidation and etching may occur in the same solution. In other embodiments, the exposed metal is directly etched without forming a metal oxide. Suitable direct metal etching agents include any number of acidic solutions. The process allows for controlled oxidation and/or etching with reduced pitting.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: March 4, 2008
    Assignee: Novellus Systems, Inc.
    Inventors: Daniel A. Koos, Steven T. Mayer, Heung L. Park, Timothy Patrick Cleary, Thomas Mountsier
  • Publication number: 20010055941
    Abstract: A method of planarizing a substrate employs two separate chemical mechanical polishing (CMP) steps. In the first CMP step, the substrate is polished using a first CMP slurry solution and a polishing pad. A diluting solution is then applied to the polishing pad to remove slurry of the first CMP step. In the second CMP step, after applying the diluting solution to the polishing pad to remove the first slurry, second CMP slurry solution is applied to the polishing pad to facilitate additional planarization of the substrate. In a particular embodiment of this invention, the diluting solution comprises a buffer solution having a pH level corresponding to a pH level of one of the first or second CMP slurry solution. In accordance with another aspect of this embodiment, a plurality of different diluting solutions are applied to the polishing pad intermediate the respective first and second CMP steps.
    Type: Application
    Filed: May 29, 2001
    Publication date: December 27, 2001
    Applicant: Micron Technology, Inc.
    Inventors: Daniel A. Koos, Sung C. Kim, Gurtej S. Sandhu
  • Patent number: 6234877
    Abstract: A method of planarizing a substrate employs two separate chemical mechanical polishing (CMP) steps. In the first CMP step, the substrate is polished using a first CMP slurry solution and a polishing pad. A diluting solution is then applied to the polishing pad to remove slurry of the first CMP step. In the second CMP step, after applying the diluting solution to the polishing pad to remove the first slurry, second CMP slurry solution is applied to the polishing pad to facilitate additional planarization of the substrate. In a particular embodiment of this invention, the diluting solution comprises a buffer solution having a pH level corresponding to a pH level of one of the first or second CMP slurry solution. In accordance with another aspect of this embodiment, a plurality of different diluting solutions are applied to the polishing pad intermediate the respective first and second CMP steps.
    Type: Grant
    Filed: June 7, 2000
    Date of Patent: May 22, 2001
    Assignee: Micron Technology, Inc.
    Inventors: Daniel A. Koos, Sung C. Kim, Gurtej S. Sandhu
  • Patent number: 6120354
    Abstract: A method of planarizing a substrate employs two separate chemical mechanical polishing (CMP) steps. In the first CMP step, the substrate is polished using a first CMP slurry solution and a polishing pad. A diluting solution is then applied to the polishing pad to remove slurry of the first CMP step. In the second CMP step, after applying the diluting solution to the polishing pad to remove the first slurry, second CMP slurry solution is applied to the polishing pad to facilitate additional planarization of the substrate. In a particular embodiment of this invention, the diluting solution comprises a buffer solution having a pH level corresponding to a pH level of one of the first or second CMP slurry solution. In accordance with another aspect of this embodiment, a plurality of different diluting solutions are applied to the polishing pad intermediate the respective first and second CMP steps.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: September 19, 2000
    Assignee: Micron Technology, Inc.
    Inventors: Daniel A. Koos, Sung C. Kim, Gurtej S. Sandhu
  • Patent number: 5934980
    Abstract: A method of planarizing a substrate employs two separate chemical mechanical polishing (CMP) steps. In the first CMP step, the substrate is polished using a first CMP slurry solution and a polishing pad. A diluting solution is then applied to the polishing pad to remove slurry of the first CMP step. In the second CMP step, after applying the diluting solution to the polishing pad to remove the first slurry, second CMP slurry solution is applied to the polishing pad to facilitate additional planarization of the substrate. In a particular embodiment of this invention, the diluting solution comprises a buffer solution having a pH level corresponding to a pH level of one of the first or second CMP slurry solution. In accordance with another aspect of this embodiment, a plurality of different diluting solutions are applied to the polishing pad intermediate the respective first and second CMP steps.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: August 10, 1999
    Assignee: Micron Technology, Inc.
    Inventors: Daniel A. Koos, Sung C. Kim, Gurtej S. Sandhu
  • Patent number: 5741547
    Abstract: A method of depositing a film of titanium nitride on a substrate which includes, positioning the substrate within a chemical vapor deposition reactor chamber which is maintained at a predetermined temperature and pressure; combining a gaseous source of nitrogen with a gaseous source of titanium to form a reactant gas mixture having complementary reactant molecules; and delivering the complementary reactant molecules within the chemical vapor deposition reactor from a selected distance from the substrate of greater than 1 cm. which facilitates the formation of titanium nitride film on the substrate having a given surface roughness which is at least 50% rougher than the titanium nitride film deposited using the same gaseous sources of titanium and nitrogen and which are combined under the same temperature and pressure condition but which are delivered to the surface of the substrate from a distance of about 1 cm. The gaseous sources of nitrogen may include phenylhydrazine.
    Type: Grant
    Filed: January 23, 1996
    Date of Patent: April 21, 1998
    Assignee: Micron Technology, Inc.
    Inventors: Salman Akram, Daniel A. Koos
  • Patent number: 5413941
    Abstract: A semiconductor processing method of detecting polishing end point from a polishing planarization process includes: a) impinging laser light onto an area of an outermost surface of a semiconductor substrate at an angle of incidence of at least 70.degree. from a line normal relative to the substrate (at least 60.degree. for s-polarized light), the impinged laser light predominantly reflecting off the area as opposed to transmitting therethrough; b) measuring intensity of the light reflected off the area; c) polishing the substrate outermost surface; d) repeating step "a" then step "b"; and e) comparing a prior measured intensity of reflected light with a later measured intensity of reflected light to determine a change in degree of planarity of the semiconductor substrate outermost surface as a result of polishing.
    Type: Grant
    Filed: January 6, 1994
    Date of Patent: May 9, 1995
    Assignee: Micron Technology, Inc.
    Inventors: Daniel A. Koos, Scott Meikle