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).
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Patent number: 9279178Abstract: 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: GrantFiled: April 25, 2008Date of Patent: March 8, 2016Assignee: Honeywell International Inc.Inventors: Janine K. Kardokus, Michael Pinter, Michael D. Payton, Steven (Chi Tse) Wu, Jared Akins, Werner Hort
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Publication number: 20120273097Abstract: 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: ApplicationFiled: July 11, 2012Publication date: November 1, 2012Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Chi tse Wu, Wuwen Yi, Frederick B. Hidden, Susan D. Strothers
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Patent number: 7767043Abstract: 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: GrantFiled: September 22, 2008Date of Patent: August 3, 2010Assignee: Honeywell International Inc.Inventors: Vladimir M. Segal, Wuwen Yi, Stephane Ferrasse, Chi tse Wu, Susan D. Strothers, Frank A. Alford, William B. Willett
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Publication number: 20100059147Abstract: 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: ApplicationFiled: September 22, 2008Publication date: March 11, 2010Inventors: Vladimir M. Segal, Wuwen Yi, Stephane Ferrasse, Chi tse Wu, Susan D. Strothers, Frank A. Alford, William B. Willett
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Patent number: 7618520Abstract: 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: GrantFiled: September 23, 2005Date of Patent: November 17, 2009Assignee: 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
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Publication number: 20090045044Abstract: 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: ApplicationFiled: August 13, 2007Publication date: February 19, 2009Inventors: Jared Akins, Chi Tse Wu
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Publication number: 20090020192Abstract: 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: ApplicationFiled: September 22, 2008Publication date: January 22, 2009Inventors: Vladimir M. Segal, Wuwen Yi, Stephane Ferrasse, Chi tse Wu, Susan D. Strothers, Frank A. Alford, William B. Willett
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Publication number: 20080289958Abstract: 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: ApplicationFiled: April 25, 2008Publication date: November 27, 2008Inventors: Janine Kardokus, Michael Pinter, Michael Payton, Steven(Chi Tse) Wu, Jared Akins, Werner Hort
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Patent number: 6858102Abstract: 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: GrantFiled: November 15, 2000Date of Patent: February 22, 2005Assignee: Honeywell International Inc.Inventors: Janine K. Kardokus, Chi tse Wu, Christopher L. Parfeniuk, Jane E. Buehler
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Patent number: 6849139Abstract: 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: GrantFiled: December 19, 2001Date of Patent: February 1, 2005Assignee: Honeywell International Inc.Inventors: Janine K. Kardokus, Chi tse Wu, Christopher L. Parfeniuk, Jane E. Buehler
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Publication number: 20040144643Abstract: 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: ApplicationFiled: January 14, 2004Publication date: July 29, 2004Inventors: Chi tse Wu, Wuwen Yi, Frederick B. Hidden, Susan D. Strothers
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Publication number: 20040072009Abstract: 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: ApplicationFiled: July 9, 2003Publication date: April 15, 2004Inventors: Vladimir M. Segal, Wuwen Yi, Stephane Ferrasse, Chi Tse Wu, Susan D. Strothers, Frank A. Alford, William B. Willett
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Patent number: 6713391Abstract: 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: GrantFiled: October 25, 2001Date of Patent: March 30, 2004Assignee: Honeywell International Inc.Inventors: Wuwen Yi, Diana Morales, Chi Tse Wu, Ritesh P. Shah, Jeff A. Keller
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Publication number: 20040009087Abstract: 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: ApplicationFiled: April 1, 2003Publication date: January 15, 2004Inventors: Wuwen Yi, Chi tse Wu, Diana Morales
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Patent number: 6645427Abstract: 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: GrantFiled: April 21, 2000Date of Patent: November 11, 2003Assignee: Honeywell International Inc.Inventors: Janine K. Kardokus, Chi tse Wu, Christopher L. Parfeniuk, Jane E. Buehler
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Publication number: 20020112791Abstract: 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: ApplicationFiled: December 19, 2001Publication date: August 22, 2002Inventors: Janine K. Kardokus, Chi tse Wu, Christopher L. Parfeniuk, Jane E. Buehler
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Publication number: 20020102849Abstract: 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: ApplicationFiled: October 25, 2001Publication date: August 1, 2002Inventors: Wuwen Yi, Diana Morales, Chi Tse Wu, Ritesh P. Shah, Jeff A. Keller
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Patent number: 6331234Abstract: 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: GrantFiled: July 13, 2000Date of Patent: December 18, 2001Assignee: Honeywell International Inc.Inventors: Janine K. Kardokus, Chi tse Wu, Christopher L. Parfeniuk, Jane E. Buehler
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Patent number: 6113761Abstract: 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: GrantFiled: June 2, 1999Date of Patent: September 5, 2000Assignee: Johnson Matthey Electronics, Inc.Inventors: Janine K. Kardokus, Chi tse Wu, Christopher L. Parfeniuk, Jane E. Buehler