公开(公告)号：US11707748B2

公开(公告)日：2023-07-25

申请号：US17121285

申请日：2020-12-14

Applicant: Regents of the University of Minnesota

Inventor： Sang-Hyun Oh ,  Steven John Koester

IPC: B03C5/00 ,  G01N27/447 ,  G01N33/487 ,  B03C5/02

CPC classification number: B03C5/005 ,  B03C5/026 ,  G01N27/44721 ,  G01N27/44756 ,  G01N33/48721 ,  G01N33/48728 ,  B03C2201/26

Abstract: Devices, systems, and methods for applying a dielectrophoretic force on a particle include: a cell defining at least one channel for confining the particle; and a first electrode and a second electrode electrically isolated from the first electrode, at least one of the first and second electrodes being formed from a two-dimensional (2D) material providing an atomically sharp edge. The first and second electrodes are arranged sufficiently close to one another and sufficiently close to the channel such that application of a sufficient voltage across the first and second electrodes generates an electric field in at least part of the channel, the electric field having an electric field gradient sufficient to apply the dielectrophoretic force on the particle in the channel.

公开(公告)号：US11688820B2

公开(公告)日：2023-06-27

申请号：US17066735

申请日：2020-10-09

Applicant: Regents of the University of Minnesota

Inventor： Sang-Hyun Oh ,  Daehan Yoo

IPC: H01L31/108 ,  H01L31/18 ,  H01L31/028 ,  H01L31/0224

CPC classification number: H01L31/1085 ,  H01L31/028 ,  H01L31/022416 ,  H01L31/1808

Abstract: The subject matter of this specification can be embodied in, among other things, a photodetector that includes a semiconductor substrate, a semiconductor annulus on a planar face of the semiconductor substrate, and a metal layer on the semiconductor substrate, wherein the metal layer comprises a first region surrounding the semiconductor annulus and comprises a second region filling an interior region to the semiconductor annulus, and the metal layer in the first region forms a Schottky junction with the semiconductor ring.

公开(公告)号：US20180361400A1

公开(公告)日：2018-12-20

申请号：US16010980

申请日：2018-06-18

Applicant: Regents of the University of Minnesota

Inventor： Sang-Hyun Oh ,  Steven John Koester

IPC: B03C5/00 ,  G01N27/447 ,  G01N33/487

Abstract: Devices, systems, and methods for applying a dielectrophoretic force on a particle include: a cell defining at least one channel for confining the particle; and a first electrode and a second electrode electrically isolated from the first electrode, at least one of the first and second electrodes being formed from a two-dimensional (2D) material providing an atomically sharp edge. The first and second electrodes are arranged sufficiently close to one another and sufficiently close to the channel such that application of a sufficient voltage across the first and second electrodes generates an electric field in at least part of the channel, the electric field having an electric field gradient sufficient to apply the dielectrophoretic force on the particle in the channel.

公开(公告)号：US20240014689A1

公开(公告)日：2024-01-11

申请号：US18037395

申请日：2021-11-16

Applicant: REGENTS OF THE UNIVERSITY OF MINNESOTA

Inventor： Sang-Hyun Oh ,  Christopher T. Ertsgaard

IPC: H02J50/12 ,  G01N27/447

CPC classification number: H02J50/12 ,  G01N27/44713 ,  G01N27/4473

Abstract: A wireless circuit including an electrode array with a nanoscale dielectric disposed between two electrodes allows for wirelessly powered manipulation of particles in a liquid solution, air, or gaseous media via dielectrophoretic forces. The electrode array includes a first electrode, a second electrode, and a nanoscale dielectric layer between the first and second electrode. An inductive coupler is operatively coupled to the electrode array and configured to receive wireless power or wireless signals.

公开(公告)号：US20220395827A1

公开(公告)日：2022-12-15

申请号：US17756403

申请日：2020-11-20

Applicant: Regents of the University of Minnesota

Inventor： Sang-Hyun Oh ,  Christopher T. Ertsgaard

IPC: B01L3/00

Abstract: A microfluidic device includes a bottom electrode, a dielectric layer on the bottom electrode, one or more top electrodes on a region of the dielectric layer, Each of the one or more top electrodes has a sidewall that forms a sidewall angle with an outer surface of the dielectric layer that is less than 180 degrees. The sidewall of each of the one or more top electrodes and a portion of the outer surface of the dielectric layer adjacent to the sidewall define a microchannel region for transporting an open microchannel of a fluid. Such microfluidic devices may enable transport of small microchannels using low voltages.

公开(公告)号：US09228265B2

公开(公告)日：2016-01-05

申请号：US14410609

申请日：2013-05-10

Applicant: UNIVERSITY OF ROCHESTER ,  Regents of the University of Minnesota

Inventor： Lukas Novotny ,  Sang-Hyun Oh

IPC: H01B13/00 ,  C23F1/04 ,  H01L21/02 ,  B81C1/00 ,  B82Y20/00 ,  B82Y35/00 ,  G01Q60/22 ,  B32B43/00 ,  G01N21/01 ,  G01N21/65

CPC classification number: C23F1/04 ,  B32B43/006 ,  B32B2311/02 ,  B81C1/00111 ,  B82Y20/00 ,  B82Y35/00 ,  G01N21/01 ,  G01N21/658 ,  G01Q60/22 ,  H01L21/0259 ,  H01L21/02603 ,  Y10T156/1168

Abstract: Methods for template-stripping a single metallic nano-tip structure from a template containing a plurality of ready-to-be-template-stripped inverted metallic nano-tip structures include attaching the metallic nano-tip structure to a wire handle or a cantilever. A metallic nano-tip assembly includes a single metallic nano-tip structure attached to a handle or mounted on a cantilever structure. The metallic nano-tip assembly may be conductive.

Abstract translation: 从包含多个待准模板剥离的倒置的金属纳米尖端结构的模板中模板剥离单个金属纳米尖端结构的方法包括将金属纳米尖端结构附接到线把手或悬臂。 金属纳米尖端组件包括附接到手柄或安装在悬臂结构上的单个金属纳米尖端结构。 金属纳米尖端组件可以是导电的。