Patents by Inventor Steven Z. Shi
Steven Z. Shi 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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Publication number: 20230020717Abstract: Examples relate to a print station of a three-dimensional (“3D”) printing apparatus, and method of 3D printing, the print station including a substrate configured to hold a printed object, the substrate having a longitudinal axis, and a print system over the substrate, the print system including a powder distribution device including a blade-shaped end, and a powder uniformization device located at a distance from the powder distribution device along a direction parallel to the longitudinal axis.Type: ApplicationFiled: July 14, 2021Publication date: January 19, 2023Applicant: Sakuu CorporationInventors: Morteza VATANI, Siamak AZIZI, Seyed Mohammad SAJADI, Steven Z. SHI
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Patent number: 10375835Abstract: The present invention relates to methods of treating metal surfaces to enhance adhesion or binding to substrates, and devices formed thereby. In some embodiments of the present invention, methods of achieving improved bonding strength without roughening the topography of a metal surface are provided. The metal surface obtained by this method provides strong bonding to resin layers. The bonding interface between the treated metal and the resin layer exhibits resistance to heat, moisture, and chemicals involved in post-lamination process steps, and therefore can suitably be used in the production of PCB's. Methods according to some embodiments of the present invention are especially useful in the fabrication of high density multilayer PCB's, in particular for PCB's having circuits with line/spacing of equal to and less than 10 microns. Methods according to other embodiments of the present invention are particularly useful in the coating of metal surfaces in a wide variety of applications.Type: GrantFiled: August 17, 2016Date of Patent: August 6, 2019Assignee: Atotech Deutchland GmbHInventors: Jen-Chieh Wei, Zhiming Liu, Steven Z. Shi, Werner G. Kuhr
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Patent number: 9795040Abstract: Embodiments of the present invention relates generally to the manufacture of printed circuit boards (PCB's) or printed wiring boards (PWB's), and particularly to methods for treating smooth copper surfaces to increase the adhesion between a copper surface and an organic substrate. More particularly, embodiments of the present invention related to methods of achieving improved bonding strength of PCBs without roughening the topography of the copper surface. The bonding interface between the treated copper and the resin layer of the PCB exhibits excellent resistance to heat, moisture, and chemicals involved in post-lamination process steps.Type: GrantFiled: April 15, 2016Date of Patent: October 17, 2017Assignee: Namics CorporationInventors: Jen-Chieh Wei, Zhiming Liu, Steven Z. Shi, Werner G. Kuhr
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Patent number: 9763336Abstract: Embodiments of the present invention relate generally to methods of treating metal surfaces to enhance adhesion or binding to substrates, and devices formed thereby. In some embodiments of the present invention, methods of achieving improved bonding strength without roughening the topography of a metal surface are provided. The metal surface obtained by this method provides strong bonding to resin layers. The bonding interface between the treated metal and the resin layer exhibits resistance to heat, moisture, and chemicals involved in post-lamination process steps, and therefore can suitably be used in the production of PCB's. Methods according to some embodiments of the present invention are especially useful in the fabrication of high density multilayer PCB's, in particular for PCB's having circuits with line/spacing of equal to and less than 10 microns.Type: GrantFiled: July 6, 2010Date of Patent: September 12, 2017Assignee: Atotech Deutschland GmbHInventors: Jen-Chieh Wei, Zhiming Liu, Steven Z. Shi, Werner G. Kuhr
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Publication number: 20170027065Abstract: Embodiments of the present invention relates generally to the manufacture of printed circuit boards (PCB's) or printed wiring boards (PWB's), and particularly to methods for treating smooth copper surfaces to increase the adhesion between a copper surface and an organic substrate. More particularly, embodiments of the present invention related to methods of achieving improved bonding strength of PCBs without roughening the topography of the copper surface. The bonding interface between the treated copper and the resin layer of the PCB exhibits excellent resistance to heat, moisture, and chemicals involved in post-lamination process steps.Type: ApplicationFiled: April 15, 2016Publication date: January 26, 2017Inventors: Jen-Chieh Wei, Zhiming Liu, Steven Z. Shi, Werner G. Kuhr
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Publication number: 20160360623Abstract: The present invention relates to methods of treating metal surfaces to enhance adhesion or binding to substrates, and devices formed thereby. In some embodiments of the present invention, methods of achieving improved bonding strength without roughening the topography of a metal surface are provided. The metal surface obtained by this method provides strong bonding to resin layers. The bonding interface between the treated metal and the resin layer exhibits resistance to heat, moisture, and chemicals involved in post-lamination process steps, and therefore can suitably be used in the production of PCB's. Methods according to some embodiments of the present invention are especially useful in the fabrication of high density multilayer PCB's, in particular for PCB's having circuits with line/spacing of equal to and less than 10 microns. Methods according to other embodiments of the present invention are particularly useful in the coating of metal surfaces in a wide variety of applications.Type: ApplicationFiled: August 17, 2016Publication date: December 8, 2016Inventors: Jen-Chieh WEI, Zhiming LIU, Steven Z. SHI, Werner G. KUHR
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Patent number: 9345149Abstract: Embodiments of the present invention relates generally to the manufacture of printed circuit boards (PCB's) or printed wiring boards (PWB's), and particularly to methods for treating smooth copper surfaces to increase the adhesion between a copper surface and an organic substrate. More particularly, embodiments of the present invention related to methods of achieving improved bonding strength of PCBs without roughening the topography of the copper surface. The bonding interface between the treated copper and the resin layer of the PCB exhibits excellent resistance to heat, moisture, and chemicals involved in post-lamination process steps.Type: GrantFiled: July 6, 2010Date of Patent: May 17, 2016Assignee: eSionic Corp.Inventors: Jen-Chieh Wei, Zhiming Liu, Steven Z. Shi, Werner G. Kuhr
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Publication number: 20150263543Abstract: The invention broadly encompasses energy storage devices or systems and more specifically relates to methods of enhancing the performance of electrochemical double layer capacitors (EDLCs), or supercapacitors or ultracapacitors, and devices formed therefrom. In some embodiments, the invention relates generally to energy storage devices, such as EDLCs that use phosphonium-based electrolytes and methods for treating such devices to enhance their performance and operation. Embodiments of the invention further encompass conventional ammonium based electrolytes and phosphonium-based electrolytes comprised of phosphonium ionic liquids, salts, and compositions employed in such EDLCs.Type: ApplicationFiled: March 16, 2015Publication date: September 17, 2015Inventors: Wayne L. Gellett, Benjamin L. Rupert, Leanne Beer, Steven Z Shi, Shilpa A. Worlikar
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Patent number: 8927775Abstract: The invention generally encompasses phosphonium ionic liquids, salts, compositions and their use in many applications, including but not limited to: as electrolytes in electronic devices such as memory devices including static, permanent and dynamic random access memory, as electrolytes in energy storage devices such as batteries, electrochemical double layer capacitors (EDLCs) or supercapacitors or ultracapacitors, electrolytic capacitors, as electrolytes in dye-sensitized solar cells (DSSCs), as electrolytes in fuel cells, as a heat transfer medium, among other applications. In particular, the invention generally relates to phosphonium ionic liquids, salts, compositions, wherein the compositions exhibit superior combination of thermodynamic stability, low volatility, wide liquidus range, ionic conductivity, and electrochemical stability. The invention further encompasses methods of making such phosphonium ionic liquids, salts, compositions, operational devices and systems comprising the same.Type: GrantFiled: December 5, 2012Date of Patent: January 6, 2015Assignee: eSionic ES, Inc.Inventors: Benjamin L. Rupert, Levi J. Irwin, Leanne Beer, Shilpa A. Worlikar, Steven Z. Shi
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Patent number: 8907133Abstract: The invention generally encompasses phosphonium ionic liquids, salts, compositions and their use in many applications, including but not limited to: as electrolytes in electronic devices such as memory devices including static, permanent and dynamic random access memory, as electrolytes in energy storage devices such as batteries, electrochemical double layer capacitors (EDLCs) or supercapacitors or ultracapacitors, electrolytic capacitors, as electrolytes in dye-sensitized solar cells (DSSCs), as electrolytes in fuel cells, as a heat transfer medium, among other applications. In particular, the invention generally relates to phosphonium ionic liquids, salts, compositions, wherein the compositions exhibit superior combination of thermodynamic stability, low volatility, wide liquidus range, ionic conductivity, and electrochemical stability. The invention further encompasses methods of making such phosphonium ionic liquids, salts, compositions, operational devices and systems comprising the same.Type: GrantFiled: December 5, 2012Date of Patent: December 9, 2014Assignee: eSionic ES, Inc.Inventors: Wayne L. Gellett, Benjamin L. Rupert, Levi J. Irwin, Leanne Beer, Shilpa A. Worlikar, Steven Z. Shi
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Publication number: 20140266075Abstract: The invention broadly encompasses energy storage devices or systems and more specifically relates to methods of enhancing the performance of electrochemical double layer capacitors (EDLCs), or supercapacitors or ultracapacitors, and devices formed therefrom. In some embodiments, the invention relates generally to energy storage devices, such as EDLCs that use phosphonium-based electrolytes and methods for treating such devices to enhance their performance and operation. Embodiments of the invention further encompass phosphonium-based electrolytes comprised of phosphonium ionic liquids, salts, and compositions employed in such EDLCs.Type: ApplicationFiled: March 14, 2014Publication date: September 18, 2014Applicant: eSionic ES, Inc.Inventors: Wayne L. Gellett, Benjamin L. Rupert, Leanne Beer, Shipa A. Worlikar, Steven Z. Shi
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Publication number: 20140261897Abstract: Embodiments of the present invention relate generally to methods of treating metal surfaces to enhance adhesion or binding to substrates, and devices formed thereby. In some embodiments of the present invention, methods of achieving improved bonding strength without roughening the topography of a metal surface are provided. The metal surface obtained by this method provides strong bonding to resin layers. The bonding interface between the treated metal and the resin layer exhibits resistance to heat, moisture, and chemicals involved in post-lamination process steps, and therefore can suitably be used in the production of PCB's. Methods according to some embodiments of the present invention are especially useful in the fabrication of high density multilayer PCB's, in particular for PCB's having circuits with line/spacing of equal to and less than 10 microns.Type: ApplicationFiled: July 6, 2010Publication date: September 18, 2014Applicant: Atotech Deutschland GmbHInventors: Jen-Chieh Wei, Zhiming Liu, Steven Z. Shi, Werner G. Kuhr
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Publication number: 20140251502Abstract: Embodiments of the present invention relate generally to methods of treating metal surfaces to enhance adhesion or binding to substrates, and devices formed thereby. In some embodiments of the present invention, methods of achieving improved bonding strength without roughening the topography of a metal surface are provided. The metal surface obtained by this method provides strong bonding to resin layers. The bonding interface between the treated metal and the resin layer exhibits resistance to heat, moisture, and chemicals involved in post-lamination process steps, and therefore can suitably be used in the production of PCB's. Methods according to some embodiments of the present invention are especially useful in the fabrication of high density multilayer PCB's, in particular for PCB's having circuits with line/spacing of equal to and less than 10 microns.Type: ApplicationFiled: May 16, 2014Publication date: September 11, 2014Applicant: Atotech Deutschland GmbHInventors: Jen-Chieh Wei, Zhiming Liu, Steven Z. Shi, Werner G. Kuhr
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Publication number: 20130092866Abstract: The invention generally encompasses phosphonium ionic liquids, salts, compositions and their use in many applications, including but not limited to: as electrolytes in electronic devices such as memory devices including static, permanent and dynamic random access memory, as electrolytes in energy storage devices such as batteries, electrochemical double layer capacitors (EDLCs) or supercapacitors or ultracapacitors, electrolytic capacitors, as electrolytes in dye-sensitized solar cells (DSSCs), as electrolytes in fuel cells, as a heat transfer medium, among other applications. In particular, the invention generally relates to phosphonium ionic liquids, salts, compositions, wherein the compositions exhibit superior combination of thermodynamic stability, low volatility, wide liquidus range, ionic conductivity, and electrochemical stability. The invention further encompasses methods of making such phosphonium ionic liquids, salts, compositions, operational devices and systems comprising the same.Type: ApplicationFiled: December 5, 2012Publication date: April 18, 2013Inventors: Benjamin L. Rupert, Levi J. Irwin, Leanne Beer, Shilpa A. Worlikar, Steven Z. Shi
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Publication number: 20130095351Abstract: The invention generally encompasses phosphonium ionic liquids, salts, compositions and their use in many applications, including but not limited to: as electrolytes in electronic devices such as memory devices including static, permanent and dynamic random access memory, as electrolytes in energy storage devices such as batteries, electrochemical double layer capacitors (EDLCs) or supercapacitors or ultracapacitors, electrolytic capacitors, as electrolytes in dye-sensitized solar cells (DSSCs), as electrolytes in fuel cells, as a heat transfer medium, among other applications. In particular, the invention generally relates to phosphonium ionic liquids, salts, compositions, wherein the compositions exhibit superior combination of thermodynamic stability, low volatility, wide liquidus range, ionic conductivity, and electrochemical stability. The invention further encompasses methods of making such phosphonium ionic liquids, salts, compositions, operational devices and systems comprising the same.Type: ApplicationFiled: December 5, 2012Publication date: April 18, 2013Inventors: Wayne L. Gellett, Benjamin L. Rupert, Levi J. Irwin, Leanne Beer, Shilpa A. Worlikar, Steven Z. Shi
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Publication number: 20130095392Abstract: The invention generally encompasses phosphonium ionic liquids, salts, compositions and their use in many applications, including but not limited to: as electrolytes in electronic devices such as memory devices including static, permanent and dynamic random access memory, as electrolytes in energy storage devices such as batteries, electrochemical double layer capacitors (EDLCs) or supercapacitors or ultracapacitors, electrolytic capacitors, as electrolytes in dye-sensitized solar cells (DSSCs), as electrolytes in fuel cells, as a heat transfer medium, among other applications. In particular, the invention generally relates to phosphonium ionic liquids, salts, compositions, wherein the compositions exhibit superior combination of thermodynamic stability, low volatility, wide liquidus range, ionic conductivity, and electrochemical stability. The invention further encompasses methods of making such phosphonium ionic liquids, salts, compositions, operational devices and systems comprising the same.Type: ApplicationFiled: December 5, 2012Publication date: April 18, 2013Inventors: Joon Ho Shin, Benjamin L. Rupert, Levi J. Irwin, Leanne Beer, Shilpa A. Worlikar, Steven Z. Shi
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Patent number: 8323769Abstract: Embodiments of the present invention provide methods of treating a surface of a substrate. In one particular aspect, embodiments of the present invention provide methods of treating a surface of a substrate that promote binding of one or more metal elements to the surface. According to some embodiments of the invention, films are formed on any conducting, semiconductive or non-conductive surface, by thermal reaction of molecules containing reactive groups in an organic solvent or in aqueous solution. The thermal reaction may be produced under a variety of conditions. In another aspect, the present invention provides a printed circuit board, comprising: at least one substrate; a layer of organic molecules attached to the at least one substrate; and a metal layer atop said layer of organic molecules.Type: GrantFiled: December 1, 2009Date of Patent: December 4, 2012Assignee: Atotech Deutschland GmbHInventors: Werner G. Kuhr, Steven Z. Shi, Jen-Chieh Wei, Zhiming Liu, Lingyun Wei
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Publication number: 20120125514Abstract: Embodiments of the present invention relates generally to the manufacture of printed circuit boards (PCB's) or printed wiring boards (PWB's), and particularly to methods for treating smooth copper surfaces to increase the adhesion between a copper surface and an organic substrate. More particularly, embodiments of the present invention related to methods of achieving improved bonding strength of PCBs without roughening the topography of the copper surface. The bonding interface between the treated copper and the resin layer of the PCB exhibits excellent resistance to heat, moisture, and chemicals involved in post-lamination process steps.Type: ApplicationFiled: July 6, 2010Publication date: May 24, 2012Applicant: ZettaCore, Inc.Inventors: Jen-Chieh Wei, Zhiming Liu, Steven Z. Shi, Werner G. Kuhr
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Publication number: 20100075427Abstract: Embodiments of the present invention provide methods of treating a surface of a substrate. In one embodiment a kit for carrying out the binding of metals to a substrate is provided, comprising: a container comprising a heat-resistant organic molecule derivatized with an attachment group Y and a binding group X, the binding group X promotes binding of metals; and instructional materials teaching coupling the organic molecule to the substrate by heating the molecule and/or the surface to a temperature of at least 25° C.Type: ApplicationFiled: December 1, 2009Publication date: March 25, 2010Inventors: Werner G. Kuhr, Steven Z. Shi, Jen-Chieh Wei, Zhiming Liu, Lingyun Wei
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Publication number: 20100071938Abstract: Embodiments of the present invention provide methods of treating a surface of a substrate. In one particular aspect, embodiments of the present invention provide methods of treating a surface of a substrate that promote binding of one or more metal elements to the surface. According to some embodiments of the invention, films are formed on any conducting, semiconductive or non-conductive surface, by thermal reaction of molecules containing reactive groups in an organic solvent or in aqueous solution. The thermal reaction may be produced under a variety of conditions. In another aspect, the present invention provides a printed circuit board, comprising: at least one substrate; a layer of organic molecules attached to the at least one substrate; and a metal layer atop said layer of organic molecules.Type: ApplicationFiled: December 1, 2009Publication date: March 25, 2010Inventors: Werner G. Kuhr, Steven Z. Shi, Jen-Chich Wei, Zhiming Liu, Lingyun Wei