Patents by Inventor Chi tse Wu

Chi tse Wu 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: 9279178
    Abstract: Sputtering targets having a reduced burn-in time are disclosed that comprise: a) a heat-modified surface material having a substantially uniform crystallographic orientation, wherein at least part of the surface material was melted during heat-treatment, and b) a core material having an average grain size. Sputtering targets are also disclosed that include a heat-modified surface material having network of shallow trenches, alternating rounded peaks and valleys in the surface of the target or a combination thereof, wherein at least part of the surface material was melted during heat-treatment, and a core material having an average grain size. Methods of producing sputtering targets having reduced burn-in times comprises: a) providing a sputtering target comprising a sputtering surface having a sputter material and a crystal lattice, and b) heat-modifying the sputtering surface in order to melt at least part of the surface material and modify the crystal lattice.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: March 8, 2016
    Assignee: Honeywell International Inc.
    Inventors: Janine K. Kardokus, Michael Pinter, Michael D. Payton, Steven (Chi Tse) Wu, Jared Akins, Werner Hort
  • Publication number: 20120273097
    Abstract: The invention encompasses a method of forming a metallic article. An ingot of metallic material is provided, and such ingot has an initial thickness. The ingot is subjected to hot forging. The product of the hot forging is quenched to fix an average grain size of less than 250 microns within the metallic material. The quenched material can be formed into a three dimensional physical vapor deposition target. The invention also includes a method of forming a cast ingot. In particular aspects, the cast ingot is a high-purity copper material. The invention also includes physical vapor deposition targets, and magnetron plasma sputter reactor assemblies.
    Type: Application
    Filed: July 11, 2012
    Publication date: November 1, 2012
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Chi tse Wu, Wuwen Yi, Frederick B. Hidden, Susan D. Strothers
  • Patent number: 7767043
    Abstract: The invention includes a copper-comprising sputtering target. The target is monolithic or bonded and contains at least 99.99% copper by weight and has an average grain size of from 1 micron to 50 microns. The copper-comprising target has a yield strength of greater than or equal to about 15 ksi and a Brinell hardness (HB) of greater than about 40. The invention includes copper alloy monolithic and bonded sputtering targets consisting essentially of less than or equal to about 99.99% copper by weight and a total amount of alloying element(s) of at least 100 ppm and less than 10% by weight. The targets have an average grain size of from less than 1 micron to 50 microns and have a grain size non-uniformity of less than about 15% standard deviation (1-sigma) throughout the target. The invention additionally includes methods of producing bonded and monolithic copper and copper alloy targets.
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: August 3, 2010
    Assignee: Honeywell International Inc.
    Inventors: Vladimir M. Segal, Wuwen Yi, Stephane Ferrasse, Chi tse Wu, Susan D. Strothers, Frank A. Alford, William B. Willett
  • Publication number: 20100059147
    Abstract: The invention includes a copper-comprising sputtering target. The target is monolithic or bonded and contains at least 99.99% copper by weight and has an average grain size of from 1 micron to 50 microns. The copper-comprising target has a yield strength of greater than or equal to about 15 ksi and a Brinell hardness (HB) of greater than about 40. The invention includes copper alloy monolithic and bonded sputtering targets consisting essentially of less than or equal to about 99.99% copper by weight and a total amount of alloying element(s) of at least 100 ppm and less than 10% by weight. The targets have an average grain size of from less than 1 micron to 50 microns and have a grain size non-uniformity of less than about 15% standard deviation (1-sigma) throughout the target. The invention additionally includes methods of producing bonded and monolithic copper and copper alloy targets.
    Type: Application
    Filed: September 22, 2008
    Publication date: March 11, 2010
    Inventors: Vladimir M. Segal, Wuwen Yi, Stephane Ferrasse, Chi tse Wu, Susan D. Strothers, Frank A. Alford, William B. Willett
  • Patent number: 7618520
    Abstract: The invention includes a target construction having a sputtering region and a flange region laterally outward relative to the sputtering region. The flange region has a front surface disposed on a front face of the construction and a back surface opposing the front surface. An o-ring groove is disposed within the flange region. The o-ring groove has a planar base surface which has a first width and has an orifice disposed along the front surface of the flange. The orifice has a second width as measured parallel relative to the base surface. The second width is greater than the first width. The flange surfaces can additionally be protected from rubbing by a layer of protective material.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: November 17, 2009
    Assignee: Honeywell International Inc.
    Inventors: Chi tse Wu, Stephane Ferrasse, Frank C. Alford, Susanne Grabmeier, Werner H. Hort, Jaeyeon Kim, Susan D. Strothers, Andrew Wragg, Robert Prater
  • Publication number: 20090045044
    Abstract: Sputtering targets having a reduced burn-in time are described herein, where the target comprises an atmospheric plasma-treated surface material having at least about 10% reduced residual surface damage as compared to the residual surface damage of the surface material prior to atmospheric plasma treatment. Sputtering targets having reduced burn-in times are also described herein that include: a) an atmospheric plasma-finished surface material having an average grain size, and b) a core material having an average grain size, wherein the atmospheric plasma-finished surface material has an average surface roughness (Ra) equal to or less than about the average grain size of at least one of the surface material or the core material.
    Type: Application
    Filed: August 13, 2007
    Publication date: February 19, 2009
    Inventors: Jared Akins, Chi Tse Wu
  • Publication number: 20090020192
    Abstract: The invention includes a copper-comprising sputtering target. The target is monolithic or bonded and contains at least 99.99% copper by weight and has an average grain size of from 1 micron to 50 microns. The copper-comprising target has a yield strength of greater than or equal to about 15 ksi and a Brinell hardness (HB) of greater than about 40. The invention includes copper alloy monolithic and bonded sputtering targets consisting essentially of less than or equal to about 99.99% copper by weight and a total amount of alloying element(s) of at least 100 ppm and less than 10% by weight. The targets have an average grain size of from less than 1 micron to 50 microns and have a grain size non-uniformity of less than about 15% standard deviation (1-sigma) throughout the target. The invention additionally includes methods of producing bonded and monolithic copper and copper alloy targets.
    Type: Application
    Filed: September 22, 2008
    Publication date: January 22, 2009
    Inventors: Vladimir M. Segal, Wuwen Yi, Stephane Ferrasse, Chi tse Wu, Susan D. Strothers, Frank A. Alford, William B. Willett
  • Publication number: 20080289958
    Abstract: Sputtering targets having a reduced burn-in time are disclosed that comprise: a) a heat-modified surface material having a substantially uniform crystallographic orientation, wherein at least part of the surface material was melted during heat-treatment, and b) a core material having an average grain size. Sputtering targets are also disclosed that include a heat-modified surface material having network of shallow trenches, alternating rounded peaks and valleys in the surface of the target or a combination thereof, wherein at least part of the surface material was melted during heat-treatment, and a core material having an average grain size. Methods of producing sputtering targets having reduced burn-in times comprises: a) providing a sputtering target comprising a sputtering surface having a sputter material and a crystal lattice, and b) heat-modifying the sputtering surface in order to melt at least part of the surface material and modify the crystal lattice.
    Type: Application
    Filed: April 25, 2008
    Publication date: November 27, 2008
    Inventors: Janine Kardokus, Michael Pinter, Michael Payton, Steven(Chi Tse) Wu, Jared Akins, Werner Hort
  • Patent number: 6858102
    Abstract: The invention includes a sputtering target containing copper of a purity of at least about 99.999 wt. %, and at least one component selected from the group consisting of Ag, Sn, Te, In, B, Bi, Sb, and P dispersed within the copper. The total of Ag, Sn, Te, In, B, Bi, Sb, and P within the copper is from at least 0.3 ppm to about 10 ppm. The sputtering target has a substantially uniform grain size of less than or equal to about 50 micrometers throughout the copper and the at least one component.
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: February 22, 2005
    Assignee: Honeywell International Inc.
    Inventors: Janine K. Kardokus, Chi tse Wu, Christopher L. Parfeniuk, Jane E. Buehler
  • Patent number: 6849139
    Abstract: The invention includes a method of forming a sputtering target containing copper of a purity of at least about 99.999 wt. %, and at least one component selected from the group consisting of Ag, Sn, Te, In, B, Bi, Sb, and P dispersed within the copper. The total of Ag, Sn, Te, In, B, Bi, Sb, and P within the copper is from at least 0.3 ppm to about 10 ppm. The sputtering target has a substantially uniform grain size of less than or equal to about 50 micrometers throughout the copper and the at least one component.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: February 1, 2005
    Assignee: Honeywell International Inc.
    Inventors: Janine K. Kardokus, Chi tse Wu, Christopher L. Parfeniuk, Jane E. Buehler
  • Publication number: 20040144643
    Abstract: The invention encompasses a method of forming a metallic article. An ingot of metallic material is provided, and such ingot has an initial thickness. The ingot is subjected to hot forging. The product of the hot forging is quenched to fix an average grain size of less than 250 microns within the metallic material. The quenched material can be formed into a three dimensional physical vapor deposition target. The invention also includes a method of forming a cast ingot. In particular aspects, the cast ingot is a high-purity copper material. The invention also includes physical vapor deposition targets, and magnetron plasma sputter reactor assemblies.
    Type: Application
    Filed: January 14, 2004
    Publication date: July 29, 2004
    Inventors: Chi tse Wu, Wuwen Yi, Frederick B. Hidden, Susan D. Strothers
  • Publication number: 20040072009
    Abstract: The invention includes a copper-comprising sputtering target. The target is monolithic or bonded and contains at least 99.99% copper by weight and has an average grain size of from 1 micron to 50 microns. The copper-comprising target has a yield strength of greater than or equal to about 15 ksi and a Brinell hardness (HB) of greater than about 40. The invention includes copper alloy monolithic and bonded sputtering targets consisting essentially of less than or equal to about 99.99% copper by weight and a total amount of alloying element(s) of at least 100 ppm and less than 10% by weight. The targets have an average grain size of from less than 1 micron to 50 microns and have a grain size non-uniformity of less than about 15% standard deviation (1-sigma) throughout the target. The invention additionally includes methods of producing bonded and monolithic copper and copper alloy targets.
    Type: Application
    Filed: July 9, 2003
    Publication date: April 15, 2004
    Inventors: Vladimir M. Segal, Wuwen Yi, Stephane Ferrasse, Chi Tse Wu, Susan D. Strothers, Frank A. Alford, William B. Willett
  • Patent number: 6713391
    Abstract: The invention includes a non-magnetic physical vapor deposition target. The target has at least 30 atom percent total of one or more of Co, Ni, Ta, Ti, Pt, Mo and W, and at least 10 atom percent silicon. The target also has one phase and not more than 1% of any additional phases other than said one phase. In another aspect, the invention includes a non-magnetic physical vapor deposition target consisting essentially of Co and/or Ni, silicon, and one phase.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: March 30, 2004
    Assignee: Honeywell International Inc.
    Inventors: Wuwen Yi, Diana Morales, Chi Tse Wu, Ritesh P. Shah, Jeff A. Keller
  • Publication number: 20040009087
    Abstract: The invention includes methods of forming physical vapor deposition targets, and includes targets and target assemblies. The methods of forming the targets comprise hot-pressing or die forging of suitable materials to form a target blank. The target blank has a pair of opposing surfaces, with one of the opposing surfaces having a topography that is substantially an inverse of an expected wear profile. The target blank can be bonded to a backing plate to form a target assembly or can be utilized as a monolithic target.
    Type: Application
    Filed: April 1, 2003
    Publication date: January 15, 2004
    Inventors: Wuwen Yi, Chi tse Wu, Diana Morales
  • Patent number: 6645427
    Abstract: Described is a sputtering target assembly of high purity copper diffusion bonded to a precipitation hardened aluminum alloy backing plate via an intermediate layer of a CuCr alloy and in which the copper contains a micro alloy addition of at least one of Ag, Su, Te, In, Mg, B, Bi, Sb and/or P. Also disclosed is a method that includes preparation of a master alloy for addition to high purity copper and fabricating, heat treating and diffusion bonding processes to produce a sputtering target assembly with a stable fine-grained target microstructure.
    Type: Grant
    Filed: April 21, 2000
    Date of Patent: November 11, 2003
    Assignee: Honeywell International Inc.
    Inventors: Janine K. Kardokus, Chi tse Wu, Christopher L. Parfeniuk, Jane E. Buehler
  • Publication number: 20020112791
    Abstract: Described is a sputtering target assembly of high purity copper diffusion bonded to a precipitation hardened aluminum alloy backing plate via an intermediate layer of a CuCr alloy and in which the copper contains a micro alloy addition of at least one of Ag, Su, Te, In, Mg, B, Bi, Sb and/or P. Also disclosed is a method that includes preparation of a master alloy for addition to high purity copper and fabricating, heat treating and diffusion bonding processes to produce a sputtering target assembly with a stable fine-grained target microstructure.
    Type: Application
    Filed: December 19, 2001
    Publication date: August 22, 2002
    Inventors: Janine K. Kardokus, Chi tse Wu, Christopher L. Parfeniuk, Jane E. Buehler
  • Publication number: 20020102849
    Abstract: The invention includes a non-magnetic physical vapor deposition target. The target has at least 30 atom percent total of one or more of Co, Ni, Ta, Ti, Pt, Mo and W, and at least 10 atom percent silicon. The target also has one phase and not more than 1% of any additional phases other than said one phase. In another aspect, the invention includes a non-magnetic physical vapor deposition target consisting essentially of Co and/or Ni, silicon, and one phase.
    Type: Application
    Filed: October 25, 2001
    Publication date: August 1, 2002
    Inventors: Wuwen Yi, Diana Morales, Chi Tse Wu, Ritesh P. Shah, Jeff A. Keller
  • Patent number: 6331234
    Abstract: Described is a sputtering target assembly of high purity copper diffusion bonded to a precipitation hardened aluminum alloy backing plate via an intermediate layer of a CuCr alloy and in which the copper contains a micro alloy addition of at least one of Ag, Su, Te, In, Mg, B, Bi, Sb and/or P. Also disclosed is a method that includes preparation of a master alloy for addition to high purity copper and fabricating, heat treating and diffusion bonding processes to produce a sputtering target assembly with a stable fine-grained target microstructure.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: December 18, 2001
    Assignee: Honeywell International Inc.
    Inventors: Janine K. Kardokus, Chi tse Wu, Christopher L. Parfeniuk, Jane E. Buehler
  • Patent number: 6113761
    Abstract: Described is a sputtering target assembly of high purity copper diffusion bonded to a precipitation hardened aluminum alloy backing plate via an intermediate layer of a CuCr alloy and in which the copper contains a micro alloy addition of at least one of Ag, Su, Te, In, Mg, B, Bi, Sb and/or P. Also disclosed is a method that includes preparation of a master alloy for addition to high purity copper and fabricating, heat treating and diffusion bonding processes to produce a sputtering target assembly with a stable fine-grained target microstructure.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: September 5, 2000
    Assignee: Johnson Matthey Electronics, Inc.
    Inventors: Janine K. Kardokus, Chi tse Wu, Christopher L. Parfeniuk, Jane E. Buehler