Patents Assigned to Aixtron, Inc.
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Patent number: 9359674Abstract: The disclosed invention includes apparatus and methods that may be used for plasma-based deposition of thin layers of material on separate or continuous web substrates at very low temperatures with very low defect density. It achieves superior control of gas phase chemistry by controlling the sequence of introduction of gaseous components. It also has substantially independent control over the rate of chemical processes in the gas and of the amount of power and energy of ion bombardment. Such control enables high quality single and multi-layer films to be deposited cost effectively and uniformly over larger areas under very low temperature conditions.Type: GrantFiled: July 1, 2014Date of Patent: June 7, 2016Assignee: Aixtron, Inc.Inventors: Stephen Edward Savas, Sai Mantripragada, Sooyun Joh, Allan B. Wiesnoski, Carl Galewski
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Patent number: 9299956Abstract: A method is disclosed for forming leak-free coatings on polymeric or other surfaces that provide optical functions or protect underlying layers from exposure to oxygen and water vapor and do not crack or peel in outdoor environments. This method may include both cleaning and surface modification steps preceding coating. The combined method greatly reduces defects in any barrier layer and provides weatherability of coatings. Specific commercial applications that benefit from this include manufacturing of photovoltaic devices or organic light emitting diode (OLED) devices including lighting and displays.Type: GrantFiled: June 13, 2013Date of Patent: March 29, 2016Assignee: Aixtron, Inc.Inventors: Stephen E. Savas, Allan Wiesnoski, Hood Chatham, Carl Galewski
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Patent number: 9096933Abstract: Apparatus and method for plasma-based processing well suited for deposition, etching, or treatment of semiconductor, conductor or insulating films. Plasma generating units include one or more elongated electrodes on the processing side of a substrate and a neutral electrode proximate the opposite side of the substrate. Gases may be injected proximate a powered electrode which break down electrically and produce activated species that flow toward the substrate area. This gas then flows into an extended process region between powered electrodes and substrate, providing controlled and continuous reactivity with the substrate at high rates with efficient utilization of reactant feedstock. Gases are exhausted via passages between powered electrodes or electrode and divider.Type: GrantFiled: April 15, 2014Date of Patent: August 4, 2015Assignee: Aixtron, Inc.Inventors: Stephen E. Savas, Carl Galewski, Allan B. Wiesnoski, Sai Mantripragada, Sooyun Joh
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Patent number: 9096932Abstract: Apparatus and method for plasma-based processing well suited for deposition, etching, or treatment of semiconductor, conductor or insulating films. Plasma generating units include one or more elongated electrodes on the processing side of a substrate and a neutral electrode proximate the opposite side of the substrate. Gases may be injected proximate a powered electrode which break down electrically and produce activated species that flow toward the substrate area. This gas then flows into an extended process region between powered electrodes and substrate, providing controlled and continuous reactivity with the substrate at high rates with efficient utilization of reactant feedstock. Gases are exhausted via passages between powered electrodes or electrode and divider.Type: GrantFiled: April 14, 2014Date of Patent: August 4, 2015Assignee: Aixtron, Inc.Inventors: Stephen E. Savas, Carl Galewski, Allan B. Wiesnoski, Sai Mantripragada, Sooyun Joh
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Patent number: 8906456Abstract: A device for depositing at least one especially thin layer onto at least one substrate includes a process chamber housed in a reactor housing and includes a movable susceptor which carries the at least one substrate. A plurality of gas feed lines run into said process chamber and feed different process gases which comprise layer-forming components. Said process gases can be fed to the process chamber in subsequent process steps, thereby depositing the layer-forming components onto the substrate. In order to increase throughput, the process chamber is provided with a plurality of separate deposition chambers into which different gas feed lines run, thereby feeding individual gas compositions. The substrate can be fed to said chambers one after the other by moving the susceptor and depositing different layers or layer components.Type: GrantFiled: September 26, 2013Date of Patent: December 9, 2014Assignee: Aixtron, Inc.Inventors: Piotr Strzyzewski, Peter Baumann, Marcus Schumacher, Johannes Lindner, Antonio Mesquida Küsters
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Patent number: 8298337Abstract: The invention relates to a gas inlet element (2) for a CVD reactor with a chamber (4), which has a multitude of bottom-side outlet openings (23), via which a process gas introduced into the chamber (4) via edge-side access openings (10) exits into a process chamber (21) of the CVD reactor (1). In order to homogenize the gas composition, the invention provides that at least one mixing chamber arrangement (11, 12, 13) is situated upstream from the access openings (10), and at least two process gases are mixed with one another inside this mixing chamber arrangement.Type: GrantFiled: January 5, 2006Date of Patent: October 30, 2012Assignee: Aixtron, Inc.Inventors: Markus Reinhold, Peter Baumann, Gerhard Karl Strauch
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Patent number: 7981473Abstract: A process in which a wafer is exposed to a first chemically reactive precursor dose insufficient to result in a maximum saturated ALD deposition rate on the wafer, and then to a second chemically reactive precursor dose, the precursors being distributed in a manner so as to provide substantially uniform film deposition. The second chemically reactive precursor dose may likewise be insufficient to result in a maximum saturated ALD deposition rate on the wafer or, alternatively, sufficient to result in a starved saturating deposition on the wafer. The process may or may not include purges between the precursor exposures, or between one set of exposures and not another.Type: GrantFiled: March 1, 2004Date of Patent: July 19, 2011Assignee: Aixtron, Inc.Inventors: Gi Youl Kim, Anuranjan Srivastava, Thomas E. Seidel, Ana R. Londergan, Sasangan Ramanathan
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Patent number: 7981472Abstract: A method of introducing gasses through a gas distribution system into a reactor involves flowing the gasses through at least two distinct gas source orifice arrays displaced from one another along an axis defined by a gas flow direction from the gas source orifice arrays towards a work-piece. During different time intervals, a purge gas and different reactive precursors are flowed into the reactor from different ones of the gas source orifice arrays. One of the precursors may be associated with a soft saturating atomic layer deposition half reaction and another of the precursors associated with a strongly saturating atomic layer deposition half reaction. An upper one of the gas source orifice arrays may be a relatively planar gas orifice array.Type: GrantFiled: September 3, 2009Date of Patent: July 19, 2011Assignee: Aixtron, Inc.Inventors: Jeremie J. Dalton, M. Ziaul Karim, Ana R. Londergan
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Patent number: 7732308Abstract: The invention relates to a method for depositing at least one semiconductor layer on at least one substrate in a processing chamber (2). Said semiconductor layer is composed of several components which are evaporated by non-continuously injecting a liquid starting material (3) or a starting material (3) dissolved in a liquid into a tempered evaporation chamber (4) with the aid of one respective injector unit (5) while said vapor is fed to the processing chamber by means of a carrier gas (7). The inventive method is characterized in that the mass flow rate parameters, such as the preliminary injection pressure, the injection frequency, the pulse/pause ratio, and the phase relation between the pulses/pauses and the pulses/pauses of the other injector unit(s), which determine the progress of the mass flow rate of a first silicon-containing starting material and a germanium-containing second starting material (3) through the associated injector unit (5), are individually adjusted or varied.Type: GrantFiled: February 22, 2005Date of Patent: June 8, 2010Assignee: Aixtron, Inc.Inventors: Marcus Schumacher, Peter Baumann, Johannes Lindner, Timothy McEntee