公开(公告)号：US20240055036A1

公开(公告)日：2024-02-15

申请号：US18267797

申请日：2021-12-14

申请人： Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V.

发明人： Thomas Kampfe ,  Nelli Laleni

IPC分类号： G11C11/22 ,  G11C15/04

CPC分类号： G11C11/223 ,  G11C11/2275 ,  G11C15/046

摘要： An electric circuit assembly comprising a ferroelectric field effect transistor, an electric energy source, and a resistive element having a minimum electric resistance of 100 kOhm. The resistive element is electrically connected to a drain terminal of the ferroelectric field effect transistor, and the electric energy source is electrically connected to a gate terminal and a source terminal of the ferroelectric field effect transistor.

公开(公告)号：US20230361237A1

公开(公告)日：2023-11-09

申请号：US18356879

申请日：2023-07-21

申请人： Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V. ,  Nines Photovoltaics

发明人： Marc Hofmann ,  Sebastian Mack ,  Bishal Kafle ,  Jochen Rentsch ,  Nabeel Wahab Khan ,  Laurent Clochard ,  Edward Duffy

IPC分类号： H01L31/18 ,  H01L31/0745

CPC分类号： H01L31/1804 ,  H01L31/0745

摘要： The embodiments relate to a method for producing a solar cell having a rear-side contact with a tunnel barrier. A monocrystalline wafer having a front side and a rear side may be provided with silicon and a dopant. A tunnel barrier is produced on the wafer, and a polycrystalline or amorphous layer is deposited on the tunnel barrier. The polycrystalline or amorphous layer includes silicon and a dopant. The polycrystalline or amorphous layer is removed on the front side by gas-phase etching.

公开(公告)号：US20230234310A1

公开(公告)日：2023-07-27

申请号：US18099636

申请日：2023-01-20

申请人： Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.

发明人： Klemens Janiak ,  Norbert Keil ,  Moritz Kleinert ,  Gerrit Fiol

IPC分类号： B29D11/00 ,  G02F1/035

CPC分类号： B29D11/00663 ,  G02F1/035 ,  G02F2202/20

摘要： Provided is a method for manufacturing an optical component, including the following steps: producing at least one optical waveguide or a part of an optical waveguide on a substrate, where producing the optical waveguide or the part of the optical waveguide includes producing a waveguide core or a portion of a waveguide core, and where the waveguide core or the portion of the waveguide core includes silicon nitride, a polymer or a III-V semiconductor material; and arranging at least one layer of lithium niobate on a side of the waveguide core or of the portion of the waveguide core facing away from the substrate. After arranging at least one layer of lithium niobate at least one of the following steps is carried out: structuring at least one layer of lithium niobate, producing a further portion of the waveguide core and/or arranging at least one contact structure for electrically contacting the at least one layer of lithium niobate.

公开(公告)号：US20220284908A1

公开(公告)日：2022-09-08

申请号：US17664709

申请日：2022-05-24

申请人： Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.

发明人： Ning GUO ,  Bernd EDLER

IPC分类号： G10L19/02 ,  G10L19/09

摘要： An encoder for encoding a current frame of an audio signal depending on one or more previous frames of the audio signal is provided. The previous frames precede the current frame, each of the current frame and the one or more previous frames having one or more harmonic components of the audio signal, each of the current frame and the one or more previous frames having a plurality of spectral coefficients in a frequency domain or in a transform domain. To generate an encoding of the current frame, the encoder is to determine an estimation of two harmonic parameters for each of the harmonic components of a most previous frame of the previous frames. Moreover, the encoder is to determine the estimation of the two harmonic parameters for each of the harmonic components of the most previous frame using a first group of three or more of the plurality of spectral coefficients of each of the previous frames of the audio signal.

公开(公告)号：US20220186763A1

公开(公告)日：2022-06-16

申请号：US17689916

申请日：2022-03-08

申请人： Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.

发明人： Christian Dreyer

IPC分类号： F16B13/14

摘要： Injection mortar for anchoring a fastener containing a chemical composition that can cure in a curing process, and means for initiating the curing process characterized in that the chemical composition cures when irradiated with electromagnetic radiation, the means for initiating the curing process is formed by a radiation source for electromagnetic radiation, and the radiation source is placed within the anchoring zone.

公开(公告)号：US20220160948A1

公开(公告)日：2022-05-26

申请号：US17439675

申请日：2020-03-13

申请人： Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.

发明人： Heiko ZIMMERMANN ,  Julia NEUBAUER ,  Benjamin FISCHER

IPC分类号： A61M1/36

摘要： The invention relates to a treatment device (100) which is designed for extracorporeal blood treatment of blood of a subject (2) for an immunotolerance enhancement of the subject (2), comprising at least one container (10) which has an interior (11) for receiving a blood sample (1) of blood of the subject (2) and an exchange device (20) designed to supply and/or discharge the blood sample (1) into or out of the interior (11) of the container (10) and comprising a cell exposure device (30) which is positioned in the container (10) and has biological cell material (31) with surface molecules, said cell material being arranged in the interior (11) of the container (10) for a material interaction with the blood sample (1), including a reaction of endogenous immune cells in the blood with the surface molecules of the cell material. The invention also relates to a kit for extracorporeal blood treatment and to a method for operating the treatment device.

公开(公告)号：US20210354193A1

公开(公告)日：2021-11-18

申请号：US17277925

申请日：2019-09-19

申请人： Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.

发明人： Franz-Josef Wöstmann ,  Michael Heuser ,  Matthias Busse

IPC分类号： B22D11/06 ,  B22D31/00 ,  H02K15/12

摘要： The invention relates to a roller casting method for producing a spiral structure, in particular a spiral structure for use in electric machines. Molten metal is supplied between a first roller and a second roller miming opposite thereto, wherein the first roller has first teeth, and the second roller has second teeth, said first and/or second teeth having tooth flanks with cavities for receiving the supplied molten metal. The teeth are designed and aligned such that the cavity of at least one tooth is at least temporarily delimited by the surface of a tooth of the other roller when the rollers are rotating such that the supplied molten metal is molded between the teeth while cooling and is molded into a section of the spiral structure.

公开(公告)号：US11073307B2

公开(公告)日：2021-07-27

申请号：US16339881

申请日：2017-09-26

申请人： Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V.

发明人： Gregor Bern ,  Peter Schoettl ,  De Wet Van Rooyen ,  Peter Nitz ,  Anna Heimsath

IPC分类号： G06K9/00 ,  F24S50/80 ,  F24S50/20

摘要： The invention relates to a calibration method for a group of reflectors for concentrating solar radiation onto a radiation receiver, having the following steps: A) aligning the reflectors in order to at least partly expose a calibration surface to solar radiation reflected by the reflectors; B) modifying the intensity distribution of the radiation incident on the calibration surface by carrying out a pattern of movements by each reflector of the group, wherein at least one specified parameter for the pattern of movements of each reflector differs from the parameters of the other reflectors, said parameter being selected from the group: —movement frequency,—movement amplitude,—movement phase angle, and—trajectory of the solar radiation, reflected by the reflector, within the calibration surface; C) recording rows of pixels for a plurality of differently located location points of the calibration surface by at least one camera, each row of pixel having at least five temporally offset pixel recordings; D) ascertaining a spectrum for each row of pixels by transforming the row of pixels into the frequency domain; E) assigning a subset of spectra to the reflectors on the basis of the movement pattern parameter of the reflector; and F) determining at least one reflection target position for each reflector at least on the basis of the subset of spectra assigned to the reflector. The invention additionally relates to a calibration device for a group of reflectors for concentrating solar radiation onto a radiation receiver.

公开(公告)号：US20210005773A1

公开(公告)日：2021-01-07

申请号：US16979327

申请日：2019-03-08

申请人： Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V.

发明人： Jan NEKARDA ,  Andreas BRAND ,  Martin GRAF ,  Angela DE ROSE ,  Achim KRAFT

IPC分类号： H01L31/18 ,  H01L31/05

摘要： A method for producing a photovoltaic solar cell, including the method steps: A. providing at least one solar cell precursor having at least one base and at least one emitter; B. providing a metal film on a back side of the solar cell precursor, so that the metal film is electrically conductively connected to the base or the emitter, the metal film being formed as an integral component of the back side contact and the solar cell being terminated on the back side. The at least one cell connection region on at least one side of the metal film overhangs the edge of the solar cell precursor by at least 1 mm, preferably by at least 3 mm.

公开(公告)号：US10784643B2

公开(公告)日：2020-09-22

申请号：US15555409

申请日：2016-03-02

申请人： Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V.

发明人： Oliver De Vries ,  Jens Limpert ,  Marco Plotner

IPC分类号： H01S3/00 ,  G02F1/11 ,  H01S3/13

摘要： A method for generating a laser pulse train is provided, including at least the following method steps: generating a laser pulse train at a pulse repetition frequency; coupling the laser pulse train into an acousto-optical modulator, and selecting individual laser pulses of the laser pulse train. A system for generating a laser pulse train is also provided, including at least a pulsed laser and an acousto-optical modulator, and an associated control device.