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).
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Patent number: 10216613Abstract: 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: GrantFiled: November 9, 2016Date of Patent: February 26, 2019Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Kurosh Khan-Afshar Mohammadi, Daniel A. Koo Mo Shan, Geert Oost, Robert W. Thompson
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Publication number: 20180052760Abstract: 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: ApplicationFiled: November 9, 2016Publication date: February 22, 2018Inventors: Kurosh Khan-Afshar Mohammadi, Daniel A. Koo Mo Shan, Geert Oost, Robert W. Thompson
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Patent number: 8481432Abstract: 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: GrantFiled: May 26, 2011Date of Patent: July 9, 2013Assignee: Novellus Systems, Inc.Inventors: Steven T. Mayer, Daniel A. Koos, Eric Webb
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Publication number: 20110223772Abstract: 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: ApplicationFiled: May 26, 2011Publication date: September 15, 2011Inventors: Steven T. Mayer, Daniel A. Koos, Eric Webb
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Patent number: 7972970Abstract: 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: GrantFiled: July 30, 2007Date of Patent: July 5, 2011Assignee: Novellus Systems, Inc.Inventors: Steven T. Mayer, Daniel A. Koos, Eric Webb
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Publication number: 20090283499Abstract: 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: ApplicationFiled: July 30, 2007Publication date: November 19, 2009Inventors: Steven T. Mayer, Daniel A. Koos, Eric Webb
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Patent number: 7531463Abstract: 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: GrantFiled: October 24, 2006Date of Patent: May 12, 2009Assignee: Novellus Systems, Inc.Inventors: Daniel A. Koos, Steven T. Mayer, Heung L. Park, Timothy Patrick Cleary, Thomas Mountsier
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Patent number: 7338908Abstract: 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: GrantFiled: October 20, 2003Date of Patent: March 4, 2008Assignee: Novellus Systems, Inc.Inventors: Daniel A. Koos, Steven T. Mayer, Heung L. Park, Timothy Patrick Cleary, Thomas Mountsier
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Publication number: 20010055941Abstract: 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: ApplicationFiled: May 29, 2001Publication date: December 27, 2001Applicant: Micron Technology, Inc.Inventors: Daniel A. Koos, Sung C. Kim, Gurtej S. Sandhu
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Patent number: 6234877Abstract: 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: GrantFiled: June 7, 2000Date of Patent: May 22, 2001Assignee: Micron Technology, Inc.Inventors: Daniel A. Koos, Sung C. Kim, Gurtej S. Sandhu
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Patent number: 6120354Abstract: 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: GrantFiled: July 12, 1999Date of Patent: September 19, 2000Assignee: Micron Technology, Inc.Inventors: Daniel A. Koos, Sung C. Kim, Gurtej S. Sandhu
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Patent number: 5934980Abstract: 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: GrantFiled: June 9, 1997Date of Patent: August 10, 1999Assignee: Micron Technology, Inc.Inventors: Daniel A. Koos, Sung C. Kim, Gurtej S. Sandhu
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Patent number: 5741547Abstract: 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: GrantFiled: January 23, 1996Date of Patent: April 21, 1998Assignee: Micron Technology, Inc.Inventors: Salman Akram, Daniel A. Koos
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Patent number: 5413941Abstract: 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: GrantFiled: January 6, 1994Date of Patent: May 9, 1995Assignee: Micron Technology, Inc.Inventors: Daniel A. Koos, Scott Meikle