Patents by Inventor Qui T. Le
Qui T. Le 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: 20200354848Abstract: Some embodiments are directed to techniques for building single layer or multi-layer structures on dielectric or partially dielectric substrates. Certain embodiments deposit seed layer material directly onto substrate materials while others use an intervening adhesion layer material. Some embodiments use different seed layer and/or adhesion layer materials for sacrificial and structural conductive building materials. Some embodiments apply seed layer and/or adhesion layer materials in what are effectively selective manners while others apply the materials in blanket fashion. Some embodiments remove extraneous material via planarization operations while other embodiments remove the extraneous material via etching operations. Other embodiments are directed to the electrochemical fabrication of multilayer mesoscale or microscale structures which are formed using at least one conductive structural material, at least one conductive sacrificial material, and at least one dielectric material.Type: ApplicationFiled: April 28, 2020Publication date: November 12, 2020Applicant: Microfabrica Inc.Inventors: Adam L. Cohen, Michael S. Lockard, Kieun Kim, Qui T. Le, Gang Zhang, Uri Frodis, Dale S. McPherson, Dennis R. Smalley
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Patent number: 10676836Abstract: Some embodiments are directed to techniques for building single layer or multi-layer structures on dielectric or partially dielectric substrates. Certain embodiments deposit seed layer material directly onto substrate materials while others use an intervening adhesion layer material. Some embodiments use different seed layer and/or adhesion layer materials for sacrificial and structural conductive building materials. Some embodiments apply seed layer and/or adhesion layer materials in what are effectively selective manners while others apply the materials in blanket fashion. Some embodiments remove extraneous material via planarization operations while other embodiments remove the extraneous material via etching operations. Other embodiments are directed to the electrochemical fabrication of multilayer mesoscale or microscale structures which are formed using at least one conductive structural material, at least one conductive sacrificial material, and at least one dielectric material.Type: GrantFiled: August 30, 2018Date of Patent: June 9, 2020Assignee: Microfabrica Inc.Inventors: Adam L. Cohen, Michael S. Lockard, Kieun Kim, Qui T. Le, Gang Zhang, Uri Frodis, Dale S. McPherson, Dennis R. Smalley
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Publication number: 20190017189Abstract: Some embodiments are directed to techniques for building single layer or multi-layer structures on dielectric or partially dielectric substrates. Certain embodiments deposit seed layer material directly onto substrate materials while others use an intervening adhesion layer material. Some embodiments use different seed layer and/or adhesion layer materials for sacrificial and structural conductive building materials. Some embodiments apply seed layer and/or adhesion layer materials in what are effectively selective manners while others apply the materials in blanket fashion. Some embodiments remove extraneous material via planarization operations while other embodiments remove the extraneous material via etching operations. Other embodiments are directed to the electrochemical fabrication of multilayer mesoscale or microscale structures which are formed using at least one conductive structural material, at least one conductive sacrificial material, and at least one dielectric material.Type: ApplicationFiled: August 30, 2018Publication date: January 17, 2019Applicant: Microfabrica Inc.Inventors: Adam L. Cohen, Michael S. Lockard, Kieun Kim, Qui T. Le, Gang Zhang, Uri Frodis, Dale S. McPherson, Dennis R. Smalley
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Publication number: 20170247807Abstract: Some embodiments are directed to techniques for building single layer or multi-layer structures on dielectric or partially dielectric substrates. Certain embodiments deposit seed layer material directly onto substrate materials while others use an intervening adhesion layer material. Some embodiments use different seed layer and/or adhesion layer materials for sacrificial and structural conductive building materials. Some embodiments apply seed layer and/or adhesion layer materials in what are effectively selective manners while others apply the materials in blanket fashion. Some embodiments remove extraneous material via planarization operations while other embodiments remove the extraneous material via etching operations. Other embodiments are directed to the electrochemical fabrication of multilayer mesoscale or microscale structures which are formed using at least one conductive structural material, at least one conductive sacrificial material, and at least one dielectric material.Type: ApplicationFiled: November 21, 2016Publication date: August 31, 2017Applicant: Microfabrica Inc.Inventors: Adam L. Cohen, Michael S. Lockard, Kieun Kim, Qui T. Le, Gang Zhang, Uri Frodis, Dale S. McPherson, Dennis R. Smalley
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Patent number: 9546431Abstract: Some embodiments of the present invention are directed to techniques for building up single layer or multi-layer structures on dielectric or partially dielectric substrates. Certain embodiments deposit seed layer material directly onto substrate materials while other embodiments use an intervening adhesion layer material. Some embodiments use different seed layer materials and/or adhesion layer materials for sacrificial and structural conductive building materials. Some embodiments apply seed layer and/or adhesion layer materials in what are effectively selective manners while other embodiments apply the materials in blanket fashion. Some embodiments remove extraneous depositions (e.g. depositions to regions unintended to form part of a layer) via planarization operations while other embodiments remove the extraneous material via etching operations.Type: GrantFiled: February 20, 2014Date of Patent: January 17, 2017Assignee: Microfabrica Inc.Inventors: Adam L. Cohen, Michael S. Lockard, Kieun Kim, Qui T. Le, Gang Zhang, Uri Frodis, Dale S. McPherson, Dennis R. Smalley
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Publication number: 20140209473Abstract: Some embodiments of the present invention are directed to techniques for building up single layer or multi-layer structures on dielectric or partially dielectric substrates. Certain embodiments deposit seed layer material directly onto substrate materials while other embodiments use an intervening adhesion layer material. Some embodiments use different seed layer materials and/or adhesion layer materials for sacrificial and structural conductive building materials. Some embodiments apply seed layer and/or adhesion layer materials in what are effectively selective manners while other embodiments apply the materials in blanket fashion. Some embodiments remove extraneous depositions (e.g. depositions to regions unintended to form part of a layer) via planarization operations while other embodiments remove the extraneous material via etching operations.Type: ApplicationFiled: February 20, 2014Publication date: July 31, 2014Inventors: Adam L. Cohen, Michael S. Lockard, Kieun Kim, Qui T. Le, Gang Zhang, Uri Frodis, Dale S. McPherson, Dennis R. Smalley
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Publication number: 20100270165Abstract: Some embodiments of the present invention are directed to techniques for building up single layer or multi-layer structures on dielectric or partially dielectric substrates. Certain embodiments deposit seed layer material directly onto substrate materials while other embodiments use an intervening adhesion layer material. Some embodiments use different seed layer materials and/or adhesion layer materials for sacrificial and structural conductive building materials. Some embodiments apply seed layer and/or adhesion layer materials in what are effectively selective manners while other embodiments apply the materials in blanket fashion. Some embodiments remove extraneous depositions (e.g. depositions to regions unintended to form part of a layer) via planarization operations while other embodiments remove the extraneous material via etching operations.Type: ApplicationFiled: April 29, 2010Publication date: October 28, 2010Inventors: Adam L. Cohen, Michael S. Lockard, Kieun Kim, Qui T. Le, Gang Zhang, Uri Frodis, Dale S. McPherson, Dennis R. Smalley
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Publication number: 20090194425Abstract: A method of fabricating three-dimensional structures from a plurality of adhered layers of at least a first and a second material wherein the first material is a conductive material and wherein each of a plurality of layers includes treating a surface of a first material prior to deposition of the second material. The treatment of the surface of the first material either (1) decreases the susceptibility of deposition of the second material onto the surface of the first material or (2) eases or quickens the removal of any second material deposited on the treated surface of the first material. In some embodiments the treatment of the first surface includes forming a dielectric coating over the surface and the second material is electrodeposited (e.g. using an electroplating or electrophoretic process). In other embodiments the first material is coated with a conductive material that doesn't readily accept deposits of electroplated or electroless deposited materials.Type: ApplicationFiled: January 29, 2009Publication date: August 6, 2009Inventors: Adam L. Cohen, Dennis R. Smalley, Michael S. Lockard, Qui T. Le
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Patent number: 7524427Abstract: Some embodiments of the present invention are directed to techniques for building up single layer or multi-layer structures on dielectric or partially dielectric substrates. Certain embodiments deposit seed layer material directly onto substrate materials while other embodiments use an intervening adhesion layer material. Some embodiments use different seed layer materials and/or adhesion layer materials for sacrificial and structural conductive building materials. Some embodiments apply seed layer and/or adhesion layer materials in what are effectively selective manners while other embodiments apply the materials in blanket fashion. Some embodiments remove extraneous depositions (e.g. depositions to regions unintended to form part of a layer) via planarization operations while other embodiments remove the extraneous material via etching operations.Type: GrantFiled: January 3, 2005Date of Patent: April 28, 2009Assignee: Microfabrica Inc.Inventors: Adam L. Cohen, Michael S. Lockard, Kieun Kim, Qui T. Le, Gang Zhang, Uri Frodis, Dale S. McPherson, Dennis R. Smalley
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Patent number: 7517462Abstract: Some embodiments of the present invention are directed to techniques for building up single layer or multi-layer structures on dielectric or partially dielectric substrates. Certain embodiments deposit seed layer material directly onto substrate materials while other embodiments use an intervening adhesion layer material. Some embodiments use different seed layer materials and/or adhesion layer materials for sacrificial and structural conductive building materials. Some embodiments apply seed layer and/or adhesion layer materials in what are effectively selective manners while other embodiments apply the materials in blanket fashion. Some embodiments remove extraneous depositions (e.g. depositions to regions unintended to form part of a layer) via planarization operations while other embodiments remove the extraneous material via etching operations.Type: GrantFiled: January 3, 2005Date of Patent: April 14, 2009Assignee: Microfabrica Inc.Inventors: Adam L. Cohen, Michael S. Lockard, Kieun Kim, Qui T. Le, Gang Zhang, Uri Frodis, Dale S. McPherson, Dennis R. Smalley
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Patent number: 7488686Abstract: A method of fabricating three-dimensional structures from a plurality of adhered layers of at least a first and a second material wherein the first material is a conductive material and wherein each of a plurality of layers includes treating a surface of a first material prior to deposition of the second material. The treatment of the surface of the first material either (1) decreases the susceptibility of deposition of the second material onto the surface of the first material or (2) eases or quickens the removal of any second material deposited on the treated surface of the first material. In some embodiments the treatment of the first surface includes forming a dielectric coating over the surface and the second material is electrodeposited (e.g. using an electroplating or electrophoretic process). In other embodiments the first material is coated with a conductive material that doesn't readily accept deposits of electroplated or electroless deposited materials.Type: GrantFiled: September 19, 2006Date of Patent: February 10, 2009Assignee: Microfabrica Inc.Inventors: Adam L. Cohen, Dennis R. Smalley, Michael S. Lockard, Qui T. Le
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Publication number: 20080121343Abstract: Some embodiments of the present invention are directed to techniques for building up single layer or multi-layer structures on dielectric or partially dielectric substrates. Certain embodiments deposit seed layer material directly onto substrate materials while other embodiments use an intervening adhesion layer material. Some embodiments use different seed layer materials and/or adhesion layer materials for sacrificial and structural conductive building materials. Some embodiments apply seed layer and/or adhesion layer materials in what are effectively selective manners while other embodiments apply the materials in blanket fashion. Some embodiments remove extraneous depositions (e.g. depositions to regions unintended to form part of a layer) via planarization operations while other embodiments remove the extraneous material via etching operations.Type: ApplicationFiled: January 16, 2008Publication date: May 29, 2008Inventors: Adam L. Cohen, Michael S. Lockard, Kieun Kim, Qui T. Le, Gang Zhang, Uri Frodis, Dale S. McPherson, Dennis R. Smalley
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Patent number: 7288178Abstract: Various embodiments of the invention provide techniques for forming structures (e.g. HARMS-type structures) via an electrochemical extrusion process. Preferred embodiments perform the extrusion processes via depositions through anodeless conformable contact masks that are initially pressed against substrates that are then progressively pulled away or separated as the depositions thicken. A pattern of deposition may vary over the course of deposition by including more complex relative motion between the mask and the substrate elements. Such complex motion may include rotational components or translational motions having components that are not parallel to an axis of separation. More complex structures may be formed by combining the electrochemical extrusion process with the selective deposition, blanket deposition, planarization, etching, and multi-layer operations of a multi-layer electrochemical fabrication process.Type: GrantFiled: October 15, 2002Date of Patent: October 30, 2007Assignee: Microfabrica, Inc.Inventors: Adam L. Cohen, Gang Zhang, Qui T. Le, Michael S. Lockard, Dennis R. Smalley
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Patent number: 7172684Abstract: Various embodiments of the invention provide techniques for forming structures (e.g. HARMS-type structures) via an electrochemical extrusion process. Preferred embodiments perform the extrusion processes via depositions through anodeless conformable contact masks that are initially pressed against substrates that are then progressively pulled away or separated as the depositions thicken. A pattern of deposition may vary over the course of deposition by including more complex relative motion between the mask and the substrate elements. Such complex motion may include rotational components or translational motions having components that are not parallel to an axis of separation. More complex structures may be formed by combining the electrochemical extrusion process with the selective deposition, blanket deposition, planarization, etching, and multi-layer operations of a multi-layer electrochemical fabrication process.Type: GrantFiled: October 15, 2002Date of Patent: February 6, 2007Assignee: Microfabrica Inc.Inventors: Adam L. Cohen, Gang Zhang, Qui T. Le
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Patent number: 7109118Abstract: A method of fabricating three-dimensional structures from a plurality of adhered layers of at least a first and a second material wherein the first material is a conductive material and wherein each of a plurality of layers includes treating a surface of a first material prior to deposition of the second material. The treatment of the surface of the first material either (1) decreases the susceptibility of deposition of the second material onto the surface of the first material or (2) eases or quickens the removal of any second material deposited on the treated surface of the first material. In some embodiments the treatment of the first surface includes forming a dielectric coating over the surface and the second material is electrodeposited (e.g. using an electroplating or electrophoretic process). In other embodiments the first material is coated with a conductive material that doesn't readily accept deposits of electroplated or electroless deposited materials.Type: GrantFiled: May 7, 2004Date of Patent: September 19, 2006Assignee: Microfabrica Inc.Inventors: Adam L. Cohen, Dennis R. Smalley, Michael S. Lockard, Qui T. Le
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Publication number: 20040007469Abstract: An electrochemical fabrication process and apparatus are provided that can form three-dimensional multi-layer structures using pyrophosphate copper plating solutions that contain citrate salts, selenium oxide, and/or excess ammonium salts. In some embodiments the citrate salts are provided in concentrations that yield improved anode dissolution, reduced formation of pinholes on the surface of deposits, reduced likelihood of shorting between anode and cathode during deposition processes, and reduced plating voltage throughout the period of deposition. A preferred citrate salt is ammonium citrate in concentrations ranging from somewhat more that about 10 g/L for 10 mA/cm2 current density to as high as 200 g/L or more for a current density as high as 40 mA/cm. In some embodiments deposits having enhanced ductility and/or reduced tendency to crack are provided.Type: ApplicationFiled: May 7, 2003Publication date: January 15, 2004Applicant: MEMGen CorporationInventors: Gang Zhang, Qui T. Le
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Publication number: 20030127336Abstract: Various embodiments of the invention present techniques for forming structures (e.g. HARMS-type structures) via an electrochemical extrusion (ELEX™) process. Preferred embodiments perform the extrusion processes via depositions through anodeless conformable contact masks that are initially pressed against substrates that are then progressively pulled away or separated as the depositions thicken. A pattern of deposition may vary over the course of deposition by including more complex relative motion between the mask and the substrate elements. Such complex motion may include rotational components or translational motions having components that are not parallel to an axis of separation. More complex structures may be formed by combining the ELEX™ process with the selective deposition, blanket deposition, planarization, etching, and multi-layer operations of EFAB™.Type: ApplicationFiled: October 15, 2002Publication date: July 10, 2003Applicant: MEMGen CorporationInventors: Adam L. Cohen, Gang Zhang, Qui T. Le, Michael S. Lockard, Dennis R. Smalley