Patents Assigned to Technische Universitat Berlin
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Patent number: 10074608Abstract: A method for manufacturing metal structures for the electrical connection of components comprises the following steps: depositing an auxiliary layer on a substrate; structuring the auxiliary layer in a manner such that the substrate is exposed at least one environment which is envisaged for the metal structures; depositing a galvanic starting layer on the structured auxiliary layer; depositing a lithography layer on the galvanic starting layer and structuring the lithography layer in a manner such that the galvanic starting layer is exposed at least one location envisaged for the metal structure; galvanically depositing the at least one metal structure at the at least one exposed location; removing the structured auxiliary layer. An electronic component is also described.Type: GrantFiled: January 5, 2017Date of Patent: September 11, 2018Assignees: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Technische Universität BerlinInventors: Martin Wilke, Kai Zoschke, Markus Wöhrmann, Thomas Fritzsch, Hermann Oppermann, Oswin Ehrmann
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Patent number: 9992861Abstract: The invention relates to a heavy-wire bond arrangement, having a substrate (2), a heavy wire (1) and a high-voltage heavy-wire bond connection, in which an end bond section (4) of the heavy wire (1), which extends towards the end (7) of the heavy wire (1), is bonded to the substrate (2), such that in the area of the bond section (4) a bond contact (5) between the heavy wire (1) and the substrate (2) is formed, the heavy wire (1) having a tapering section (6) which adjoins the end of the wire (7) and in which the wire cross-section tapers towards the end of the wire (7). The application additionally relates to a method for producing a heavy-wire bond arrangement.Type: GrantFiled: August 7, 2011Date of Patent: June 5, 2018Assignee: Technische Universität BerlinInventor: Andreas Middendorf
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Publication number: 20180143378Abstract: An optoelectronic component including an optical waveguide integrated into a plane of the component. The optical waveguide configured to guide optical radiation in the plane. The component including a coupling element connected to the waveguide and coupling optical radiation into the waveguide along the main coupling path. The degree of coupling efficiency of the coupling element is less than one in respect to the main coupling path. The coupling element outputs optical loss radiation along a secondary coupling path. The optical loss radiation is proportional to the radiation transferred along the main coupling path. The optoelectronic component includes a detector connected to the coupling element that registers the optical loss radiation and produces a detector signal. The optoelectronic component includes a control unit configured to influence at least one operating variable of the optoelectronic component based on the detector signal.Type: ApplicationFiled: May 3, 2016Publication date: May 24, 2018Applicant: Technische Universität BerlinInventors: Stefan MEISTER, Hanjo RHEE, Christoph THEISS, Aws AL-SAADI
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Publication number: 20180100966Abstract: An optoelectronic component including an optical waveguide, an integrated optical resonator, in which the waveguide or at least a portion of the waveguide is arranged, and a heat source which can increase the temperature of the resonator during operation. A web region adjoins laterally the waveguide when viewed in the longitudinal direction of the waveguide. The web region forms a jacket portion of the waveguide and has a smaller thickness than the waveguide. The heat source is thermally connected to the waveguide by means of the web region.Type: ApplicationFiled: April 12, 2016Publication date: April 12, 2018Applicant: Technische Universität BerlinInventors: Stefan MEISTER, Hajo RHEE, Christoph THEISS, Aws AL-SAADE, Marvin HENNIGES, Muhammad ATIF
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Publication number: 20180025535Abstract: Computer implemented method for rendering an image of a three-dimensional scene on an image plane by encoding at least a luminosity in the image plane by a luminosity function. The value of the luminosity can be computed at substantially each point of the image plane by using a set of stored input data describing the scene. The method includes constructing the luminosity function as equivalent to a first linear combination involving the functions of a first set of functions, and computing at least the value of the coefficients of the first linear combination, by solving a first linear system, obtained by using at least the functions of the first linear combination, at least a subset of the first subset of the image plane, and the luminosity at the points of said subset. The method further includes storing the value of the coefficients of the first linear combination and at least the information needed to associate each coefficient to the function multiplying said coefficient in the first linear combination.Type: ApplicationFiled: July 24, 2017Publication date: January 25, 2018Applicants: Technische Universitat Berlin, University of TorontoInventors: Christian Lessig, Eugene Fiume
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Patent number: 9793179Abstract: The application relates to a method for determining a bonding connection (1) in a component arrangement (2), wherein the method has the following steps: producing a bonding connection (1) between a bonding section (3) of a bonding wire (4) and a metallic contact point (5), structuring a top-side surface of the bonding wire (4) in the region of the bonding section (3) and determining the bonding connection (1), wherein in this case a test voltage is applied to the bonding wire (4) and the bonding connection (1) so that the bonding connection (1) heats up owing to the current flow, generating a thermogram for the heated bonding connection (1) and determining whether the bonding connection (1) has been produced correctly by evaluating the thermogram. Furthermore, the application relates to a test apparatus for determining a bonding connection (1) in a component arrangement (2).Type: GrantFiled: March 3, 2015Date of Patent: October 17, 2017Assignees: Technische Universitat Berlin, Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V.Inventors: Andreas Middendorf, Torsten Nowak, Sergei Janzen
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Patent number: 9780525Abstract: An optoelectronic oscillator for generating an optical and/or electric pulse comb, comprising a monolithically integrated passively mode-coupled semiconductor laser and an optical feedback loop which guides a part of the optical radiation of the semiconductor laser and feeds said part back into the semiconductor laser as feedback pulses. Without the influence of the feedback pulses, the semiconductor laser would emit comb-like optical pulses, hereafter referred to as primary pulses, and in the event of an influence, emits comb-like output pulses which have been influenced by the feedback pulses, said output pulses having a lower temporal jitter or less phase noise than the primary pulses. The feedback loop is damped between 27.5 and 37.5 dB, and the time lag of the feedback loop is selected such that each feedback pulse is incident within the temporal half-value width of each subsequent primary pulse.Type: GrantFiled: June 12, 2014Date of Patent: October 3, 2017Assignee: Technische Universität BerlinInventors: Dejan Arsenijevic, Moritz Kleinert, Dieter Bimberg, I
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Publication number: 20170242191Abstract: The invention relates, inter alia, to a photonically integrated chip (2) having a substrate (20), a plurality of material layers arranged on a top side (21) of the substrate (20), an optical waveguide which is integrated in one or more wave-guiding material layers of the chip (2), and a grating coupler (60) which is formed in the optical waveguide and causes beam deflection of radiation guided in the waveguide in the direction out of the layer plane of the wave-guiding material layer(s) or causes beam deflection of radiation to be coupled into the waveguide in the direction into the layer plane of the wave-guiding material layer(s).Type: ApplicationFiled: September 25, 2015Publication date: August 24, 2017Applicants: Technische Universität Berlin, Sicoya GmbHInventors: Hanjo RHEE, Marvin HENNIGES, Stefan MERSTER, Christoph THEISS, David SELICKE, David STOLAREK, Lars ZIMMERMANN, Harald H. RICHTER
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Patent number: 9705285Abstract: Device comprising a high brightness broad-area edge-emitting semiconductor laser and method of making the same. The device includes an edge-emitting semiconductor laser, said laser having a multi-layered waveguide, and said waveguide comprising at least one layer with an active region that emits light under electrical injection, and at least one aperiodic layer stack.Type: GrantFiled: January 31, 2014Date of Patent: July 11, 2017Assignee: Technische Universität BerlinInventors: Vladimir Kalosha, Dieter Bimberg
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Patent number: 9705030Abstract: An ultraviolet (UV) light emitting structure, a UV light emitting device, and a method of making a UV light emitting structure or device, wherein the UV light emitting structure or device has an AlN or AlGaN injection layer with high aluminum content between the light emitting active region and the p-doped layers and wherein the injection layer has a thickness such that holes can tunnel from the p-side of the semiconductor-based ultraviolet light emitting diode structure through the injection layer in the active zone and also reducing leakage electrons out of the active zone.Type: GrantFiled: April 18, 2013Date of Patent: July 11, 2017Assignees: Technische Universität Berlin, Forschungsverbund e.V.Inventors: Michael Kneissl, Tim Kolbe
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Patent number: 9693715Abstract: An optical sensor for detecting chemical, biochemical or biological substances includes a laser and a semiconductor chip. The sensor includes at least one photodetector and at least one high-contrast grating that are monolithically integrated in the semiconductor chip. The high-contrast grating is configured to optically couple radiation emitted by the laser into the photodetector. The coupling behavior of the high-contrast grating depends on the optical properties of external substances that are brought near to or in contact with the high-contrast grating.Type: GrantFiled: December 3, 2014Date of Patent: July 4, 2017Assignee: Technische Universität BerlinInventors: Anjin Liu, Werner Hofmann, Dieter Bimberg
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Patent number: 9662765Abstract: A device for electromechanically assisted roller burnishing (EMRB) may comprise: a roller burnishing tool with exactly one current-leading roller burnishing element for burnishing a workpiece, wherein the roller burnishing element represents a first electrical contact element for electrically contacting first location of the workpiece, and a second electrical contact element for electrically contacting second location of the workpiece; wherein the first and the second electrical contact elements can be positioned at a settable spatial distance to one another, so that on moving the roller burnishing element on the workpiece, a current path in the workpiece between the first and the second contact elements is always a constant length.Type: GrantFiled: March 25, 2013Date of Patent: May 30, 2017Assignees: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Technische Universität BerlinInventors: Holger Hüning, Jens König, Eckart Uhlmann, Christoph König
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Patent number: 9558550Abstract: Method for the automatic analysis of an image of a biological sample with respect to a pathological relevance, wherein a)local features of the image are aggregated to a global feature of the image using a bag of visual word approach, b) step a) is repeated at least two times using different methods resulting in at least two bag of word feature datasets, c) computation of at least two similarity measures using the bag of word features obtained from a training image dataset and bag of word features from the image, d) the image training dataset comprising a set of visual words, classifier parameters, including kernel weights and bag of word features from the training images, e) the computation of the at least two similarity measures is subject to an adaptive computation of kernel normalization parameters and/or kernel width parameters, f) for each image one score is computed depending on the classifier parameters and kernel weights and the at least two similarity measures, the at least one score being a measureType: GrantFiled: September 14, 2012Date of Patent: January 31, 2017Assignees: Technische Universität Berlin, Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Frederick Klauschen, Motoaki Kawanabe, Klaus-Robert Mueller, Alexander Binder
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Patent number: 9543731Abstract: An embodiment of the invention relates to a method for generating short optical pulses comprising the steps of: operating a single section semiconductor laser in a nonlinear regime to emit chirped optical pulses at an output facet of the laser cavity, and compressing the chirped optical pulses outside the laser cavity using a dispersive element in order to generate the short optical pulses.Type: GrantFiled: March 17, 2015Date of Patent: January 10, 2017Assignee: Technische Universität BerlinInventors: Ricardo Rosales, Dieter Bimberg
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Patent number: 9537067Abstract: An embodiment of the present invention relates to a radiation emitting device comprising: a radiation emitter for generating radiation; a waveguide; a lens placed between the radiation emitter and the waveguide and directing a first portion of the radiation towards the waveguide; a sleeve that comprises a reflective inner surface and is placed between the radiation emitter and the waveguide, said inner reflective surface coupling a second portion of the radiation into the waveguide; wherein the lens and the sleeve are separate components that can be positioned relative to each other during fabrication of the radiation emitting device.Type: GrantFiled: May 3, 2012Date of Patent: January 3, 2017Assignee: Technische Universität BerlinInventors: Christoph Brosche, Daniel Brüggemann
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Patent number: 9424925Abstract: The invention relates, inter alia, to a memory cell (10) comprising at least one binary memory area for storing bit information. According to the invention it is provided that the memory area (SB) can optionally store holes or electrons and allows a recombination of holes and electrons, the charge carrier type of the charge carriers stored in the memory area defines the bit information of the memory area, and a charge carrier injection device (PN) is present, by means of which optionally holes or electrons can be injected into the memory area (SB) and the bit information can thus be changed.Type: GrantFiled: March 29, 2012Date of Patent: August 23, 2016Assignee: Technische Universität BerlinInventors: Andreas Marent, Dieter Bimberg
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Publication number: 20160238602Abstract: The present invention describes a method for an in vitro detection of a first protein in a sample, comprising the steps of: a) separating the sample by means of a native separation method; b) transferring the separated sample onto a membrane; c) contacting the membrane with an aptamer which specifically binds to the first protein; and d) detecting the first protein by detecting the aptamer bound to the first protein.Type: ApplicationFiled: February 12, 2016Publication date: August 18, 2016Applicant: Technische Universität BerlinInventors: Jens KURRECK, Anke WAGNER, Viola RÖHRS
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Publication number: 20160149377Abstract: An optoelectronic oscillator for generating an optical and/or electric pulse comb, comprising a monolithically integrated passively mode-coupled semiconductor laser and an optical feedback loop which guides a part of the optical radiation of the semiconductor laser and feeds said part back into the semiconductor laser as feedback pulses. Without the influence of the feedback pulses, the semiconductor laser would emit comb-like optical pulses, hereafter referred to as primary pulses, and in the event of an influence, emits comb-like output pulses which have been influenced by the feedback pulses, said output pulses having a lower temporal jitter or less phase noise than the primary pulses. The feedback loop is damped between 27.5 and 37.5 dB, and the time lag of the feedback loop is selected such that each feedback pulse is incident within the temporal half-value width of each subsequent primary pulse.Type: ApplicationFiled: June 12, 2014Publication date: May 26, 2016Applicant: Technische Universität BerlinInventors: Dejan ARSENIJEVIC, Moritz KLEINERT, Dieter BIMBERG, I
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Patent number: 9320464Abstract: The invention relates inter alia to a method for measuring the oxygen saturation of the blood flowing in a peripheral human or animal body part (20), in which electromagnetic radiation (q1?(t), q2?(t)) having a first and a second wavelength is irradiated into the peripheral body part or irradiated through the peripheral body part, the reflected or transmitted radiation (x1?(t), x2?(t)) is measured to form two measurement signals (x1(t), x2(t)), and the oxygen saturation of the blood is determined by evaluating the two measurement signals.Type: GrantFiled: January 28, 2011Date of Patent: April 26, 2016Assignee: Technische Universitat BerlinInventors: Achim Volmer, Reinhold Orglmeister, Eugen Hoffmann, Dorothea Kolossa
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Patent number: 9225145Abstract: The invention relates, inter alia, to a method for producing an electro-optical component (10, 200) suitable for emitting electromagnetic radiation (120), wherein in the method a first intermediate layer (60) is applied on a carrier, a second intermediate layer (70) is applied on the first intermediate layer, and after the second intermediate layer has been applied, the buried first intermediate layer is locally modified, wherein as a result of the local modification of the buried first intermediate layer in a lateral direction a refractive index jump is produced which brings about a lateral wave guiding of the electromagnetic radiation (120) in the unmodified region of the first intermediate layer.Type: GrantFiled: June 21, 2012Date of Patent: December 29, 2015Assignee: Technische Universität BerlinInventors: André Strittmatter, Jan-Hindrik Schulze, Tim David Germann