Patents by Inventor Zhiming Liu
Zhiming Liu 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: 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: 20170191483Abstract: An automatic inflation device includes a valve body, a miniature motor and a centrifugal impeller. The valve body is provided with an air inlet and an inflation inlet, a check valve that is unidirectionally opened outwards the valve body is provided at the inflation inlet, a wind chamber and a wind guide path connected with the wind chamber are configured in the valve body, the miniature motor and the centrifugal impeller are installed in the wind chamber, the centrifugal impeller is actuated by the miniature motor, the wind chamber is communicated with the inflation inlet via the wind guide path, and the air inlet is communicated with a wind inlet of the wind chamber. The structure of the device is compact and reduced, which is applicable to directly install into inflation products. The device can inflate automatically and efficiently, and the structure is simplified and easy to actualize.Type: ApplicationFiled: March 17, 2017Publication date: July 6, 2017Inventor: Zhiming Liu
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Publication number: 20170107980Abstract: An inflating device comprises a valve body and a gasbag, the valve body being provided with a gas inlet, a gas outlet and a gas storage chamber; the gas inlet has a gas intake valve device provided therein, and the gas outlet has a gas exhaust valve device provided therein; the gas storage chamber is communicated with the gasbag; and the gas inlet is communicated with the gas outlet through a chamber body of the valve body, and the gas storage chamber is communicated with the chamber body. In the invention, gas can be fed into an inflatable product by continually pressing with hands, without requiring electricity or blowing with mouth. The inflating device of the invention is convenient to operate, clean and sanitary. The inflating device of the invention has a small volume and is thus convenient to carry.Type: ApplicationFiled: October 28, 2014Publication date: April 20, 2017Inventor: Zhiming LIU
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Publication number: 20170102081Abstract: An inflation device includes an airbag and an air valve. An air inlet is provided at an upper end of the air valve, an air outlet is provide at a lower end of the air valve, an inlet valve that is unidirectionally opened. inwards the air valve is provided at the air inlet, the inlet valve can be opened to a deflation position, an outlet valve is provided at the air outlet that is unidirectionally opened outwards the air valve, a push aim extending towards the outlet valve is configured in the air valve and is movable up and down, the push arm is actuated to move towards the outlet valve if the inlet valve is opened, and is pressed against the outlet valve if the inlet valve is at the deflation position. The deflation operation of the inflation device is simple due to the configuration of the push arm.Type: ApplicationFiled: December 20, 2016Publication date: April 13, 2017Applicant: Guangdong Travelmall Health Technology Co., Ltd.Inventor: Zhiming Liu
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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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Publication number: 20160237571Abstract: A method is provided for metallisation of non-conductive substrates providing a high adhesion of the deposited metal to the substrate material and thereby forming a durable bond. The method applies a novel combination of a metal oxide compound to promote adhesion and a transition metal plating catalyst compound promoting the metal layer formation.Type: ApplicationFiled: September 22, 2014Publication date: August 18, 2016Applicant: ATOTECH DEUTSCHLAND GMBHInventors: Zhiming LIU, Hailuo FU, Sara HUNEGNAW, Lutz BRANDT, Tafadzwa MAGAYA
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Publication number: 20160208387Abstract: A method is provided for metallisation of non-conductive substrates providing a high adhesion of the deposited metal to the substrate material and thereby forming a durable bond. The method applies a metal oxide adhesion promoter which is activated and then metal plated. The method provides high adhesion of the non-conductive substrate to the plated metal layer.Type: ApplicationFiled: September 22, 2014Publication date: July 21, 2016Applicant: Atotech Deutschland GmbHInventors: Zhiming LIU, Hailuo FU, Sara HUNEGNAW, Lutz BRANDT
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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: 20150050422Abstract: The present invention relates to novel processes for metallization of dielectric substrate surfaces applying organosilane compositions followed by oxidative treatment. The method results in metal plated surfaces exhibiting high adhesion between the substrate and the plated metal while at the same time leaves the smooth substrate surface intact.Type: ApplicationFiled: March 21, 2013Publication date: February 19, 2015Inventors: Dirk Tews, Fabian Michalik, Belén Gil Ibánez, Lutz Brandt, Meng Che Hsieh, Zhiming Liu
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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: 20140218281Abstract: Devices and methods are provided for eye and gaze tracking determination. In one embodiment, a method for compensating for movement of a wearable eye tracking device relative to a user's eye is provided that includes wearing a wearable device on a user's head such that one or more endo-cameras are positioned to acquire images of one or both of the user's eyes, and an exo-camera is positioned to acquire images of the user's surroundings; calculating the location of features in a user's eye that cannot be directly observed from images of the eye acquired by an endo-camera; and spatially transforming camera coordinate systems of the exo- and endo-cameras to place calculated eye features in a known location and alignment.Type: ApplicationFiled: December 6, 2013Publication date: August 7, 2014Applicant: Eyefluence, Inc.Inventors: Gholamreza Amayeh, Dave Leblanc, Zhiming Liu, Michael Vacchina, Steve Wood
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Publication number: 20140184775Abstract: Devices and methods are provided for eye-tracking, e.g., including a freeform optical assembly and/or a modular design. In an exemplary embodiment, a device and method are provided that includes a wearable device on a user's head, the wearable device including a scene camera oriented to capture images of the user's surroundings. The user may perform a predetermined action with the user's eye to activate a photo feature of the wearable device, gaze at a region within the user's surroundings, the wearable device determining a focal point and limited field-of-view for the camera imaging field based on the center point, and activate the camera to capture an image of the limited field-of-view centered around the focal point.Type: ApplicationFiled: December 6, 2013Publication date: July 3, 2014Applicant: Eyefluence, Inc.Inventors: Eliot Francis Drake, Gholamreza Amayeh, Angelique Kano, Dave Le Blanc, Zhiming Liu, Lewis James Marggraff, Rory Pierce, Nelson G. Publicover, Christopher N. Spitler, Michael Vacchina
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Patent number: 8529996Abstract: This invention provides a new procedure for attaching molecules to semiconductor surfaces, in particular silicon. The molecules, which include, but are not limited to porphyrins and ferrocenes, have been previously shown to be attractive candidates for molecular-based information storage. The new attachment procedure is simple, can be completed in short times, requires minimal amounts of material, is compatible with diverse molecular functional groups, and in some instances affords unprecedented attachment motifs. These features greatly enhance the integration of the molecular materials into the processing steps that are needed to create hybrid molecular/semiconductor information storage devices.Type: GrantFiled: March 19, 2007Date of Patent: September 10, 2013Assignees: The Regents of the University of California, North Carolina State UniversityInventors: David F. Bocian, Jonathan S. Lindsey, Zhiming Liu, Amir A. Yasseri, Veena Misra, Qian Zhao, Qiliang Li, Shyam Surthi, Robert S. Loewe
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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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Patent number: 8231941Abstract: This invention provides novel methods for the formation of redox-active polymers attached to surfaces. In certain embodiments, the methods involve providing redox-active molecules bearing at least a first reactive site or group and a second reactive site or group; and contacting the surface with the redox-active molecules where the contacting is under conditions that result in attachment of said redox-active molecules to said surface via the first reactive site or group and attachment of redox-active molecules via the second reactive site or group, to the redox-active molecules attached to the surface thereby forming a polymer attached to said surface where the polymers comprise at least two of said redox-active molecules.Type: GrantFiled: November 6, 2008Date of Patent: July 31, 2012Assignees: The Regents of the University of California, The North Carolina State UniversityInventors: David F. Bocian, Zhiming Liu, Jonathan S. Lindsey
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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: 20100330284Abstract: This invention provides novel methods for the formation of redox-active polymers attached to surfaces. In certain embodiments, the methods involve providing redox-active molecules bearing at least a first reactive site or group and a second reactive site or group; and contacting the surface with the redox-active molecules where the contacting is under conditions that result in attachment of said redox-active molecules to said surface via the first reactive site or group and attachment of redox-active molecules via the second reactive site or group, to the redox-active molecules attached to the surface thereby forming a polymer attached to said surface where the polymers comprise at least two of said redox-active molecules.Type: ApplicationFiled: November 6, 2008Publication date: December 30, 2010Applicants: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, THE NORTH CAROLINA STATE UNIVERSITYInventors: David F. Bocian, Zhiming Liu, Jonathan S. Lindsey
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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