Patents by Inventor Juergen Stock
Juergen Stock 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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Patent number: 11914306Abstract: A calibrated lithographic model may be used to generate a lithographic model output based on an integrated circuit (IC) design layout. Next, at least a chemical parameter may be extracted from the lithographic model output. A calibrated defect rate model may then be used to predict a defect rate for the IC design layout based on the chemical parameter.Type: GrantFiled: October 16, 2020Date of Patent: February 27, 2024Assignee: Synopsys, Inc.Inventors: Erik A. Verduijn, Ulrich Karl Klostermann, Ulrich Welling, Jiuzhou Tang, Hans-Jürgen Stock
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Publication number: 20220392191Abstract: A computational lithography process uses machine learning models. An aerial image produced by a lithographic mask is first calculated using a two-dimensional model of the lithographic mask. This first aerial image is applied to a first machine learning model, which infers a second aerial image. The first machine learning model was trained using a training set that includes aerial images calculated using a more accurate three-dimensional model of lithographic masks. The two-dimensional model is faster to compute than the three-dimensional model but it is less accurate. The first machine learning model mitigates this inaccuracy.Type: ApplicationFiled: May 23, 2022Publication date: December 8, 2022Inventors: Dereje Shewaseged Woldeamanual, Thomas Heribert Mülders, Jiuzhou Tang, Rainer Zimmermann, Robert Marshall Lugg, Hans-Jürgen Stock, Georg Albert Viehöver
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Publication number: 20220382144Abstract: Initial source shapes for source mask optimization are determined based on a layout of the lithographic mask. In one approach, a layout of a lithographic mask is received. Different sections of the lithographic mask, referred to as clips, are selected. These clips are applied to a machine learning model which infers source shapes from the clips. The inferred source shapes are used as the initial source shapes for source mask optimization.Type: ApplicationFiled: June 1, 2022Publication date: December 1, 2022Inventors: William A. Stanton, Sylvain Berthiaume, Hans-Jürgen Stock, Jay A. Hiserote
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Publication number: 20210116817Abstract: A calibrated lithographic model may be used to generate a lithographic model output based on an integrated circuit (IC) design layout. Next, at least a chemical parameter may be extracted from the lithographic model output. A calibrated defect rate model may then be used to predict a defect rate for the IC design layout based on the chemical parameter.Type: ApplicationFiled: October 16, 2020Publication date: April 22, 2021Applicant: Synopsys, Inc.Inventors: Erik A. Verduijn, Ulrich Karl Klostermann, Ulrich Welling, Jiuzhou Tang, Hans-Jürgen Stock
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Patent number: 10196370Abstract: In the method for the epoxidation of an olefin, the olefin is continuously reacted with hydrogen peroxide in a mixed reactor in the presence of a water soluble epoxidation catalyst, comprising a manganese complex, the reaction is carried out in a reaction mixture comprising an aqueous liquid phase and an organic liquid phase with mixing of the liquid phases, reaction mixture is continuously withdrawn from the mixed reactor and separated into a separated aqueous phase and a separated organic phase, and part of the separated aqueous phase is continuously recycled into the mixed reactor, with the combined hold-up time of aqueous phase in withdrawing, separating phases and recycling aqueous phase being kept at less than 15 minutes.Type: GrantFiled: February 3, 2016Date of Patent: February 5, 2019Assignee: Evonik Degussa GmbHInventors: Jürgen Stock, Joao André, Sebastian Imm, Matthias Pascaly
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Patent number: 10087158Abstract: Epoxidation of an olefin is carried out by continuously reacting the olefin with hydrogen peroxide in the presence of a water soluble epoxidation catalyst, comprising a manganese complex, in a reaction mixture comprising an aqueous liquid phase and an organic liquid phase using a loop reactor with mixing of the liquid phases, and during the reaction the concentration of hydrogen peroxide in the aqueous liquid phase is maintained at less than 1.0% by weight.Type: GrantFiled: February 3, 2016Date of Patent: October 2, 2018Assignee: EVONIK DEGUSSA GMBHInventors: Jürgen Stock, Uwe Breitenbach, Sebastian Imm, Jürgen Neuroth, Brigitte Mess, Matthias Pascaly
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Publication number: 20180057473Abstract: The method for the epoxidation of propene comprises continuously reacting propene with hydrogen peroxide in the presence of a homogeneous epoxidation catalyst in a reaction mixture comprising an aqueous liquid phase and an organic liquid phase using a loop reactor with mixing of the liquid phases, withdrawing aqueous phase from the loop reactor and extracting it by liquid-liquid-extraction using propene as extractant to provide an extract comprising propene and propene oxide.Type: ApplicationFiled: February 3, 2016Publication date: March 1, 2018Applicant: Evonik Degussa GmbHInventors: Juergen Stock, Daniel REIN, Jörg SCHALLENBERG, Georg Friedrich THIELE
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Publication number: 20180030010Abstract: Epoxidation of an olefin is carried out by continuously reacting the olefin with hydrogen peroxide in the presence of a homogeneous epoxidation catalyst in a reaction mixture comprising an aqueous liquid phase and an organic liquid phase, using a loop reactor with mixing of the liquid phases. The loop reactor comprises a measuring section in which the liquid phases are temporarily separated, at least one pH electrode is arranged in the measuring section in contact with the separated aqueous phase, a pH of the separated aqueous phase is determined with the pH electrode and the pH is maintained in a predetermined range by adding acid or base to the loop reactor.Type: ApplicationFiled: February 17, 2016Publication date: February 1, 2018Applicant: Evonik Degussa GmbHInventors: Uwe BREITENBACH, Sebastian IMM, Hans-Martin RAUSCH, Matthias PASCALY, Jürgen STOCK
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Publication number: 20180030012Abstract: In the method for the epoxidation of an olefin, the olefin is continuously reacted with hydrogen peroxide in a mixed reactor in the presence of a water soluble epoxidation catalyst, comprising a manganese complex, the reaction is carried out in a reaction mixture comprising an aqueous liquid phase and an organic liquid phase with mixing of the liquid phases, reaction mixture is continuously withdrawn from the mixed reactor and separated into a separated aqueous phase and a separated organic phase, and part of the separated aqueous phase is continuously recycled into the mixed reactor, with the combined hold-up time of aqueous phase in withdrawing, separating phases and recycling aqueous phase being kept at less than 15 minutes.Type: ApplicationFiled: February 3, 2016Publication date: February 1, 2018Applicant: Evonik Degussa GmbHInventors: Jürgen Stock, Joao ANDRÉ, Sebastian IMM, Matthias PASCALY
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Publication number: 20180030011Abstract: Epoxidation of an olefin is carried out by continuously reacting the olefin with hydrogen peroxide in the presence of a water soluble epoxidation catalyst, comprising a manganese complex, in a reaction mixture comprising an aqueous liquid phase and an organic liquid phase using a loop reactor with mixing of the liquid phases, and during the reaction the concentration of hydrogen peroxide in the aqueous liquid phase is maintained at less than 1.0% by weight.Type: ApplicationFiled: February 3, 2016Publication date: February 1, 2018Applicant: Evonik Degussa GmbHInventors: Jüergen STOCK, Uwe BREITENBACH, Sebastian IMM, Jürgen NEUROTH, Brigitte MESS, Matthias PASCALY
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Patent number: 9403764Abstract: A method for production of a methionine salt in a reactive rectification column containing a weir having a height of 100 mm or more is provided.Type: GrantFiled: March 4, 2015Date of Patent: August 2, 2016Assignee: EVONIK DEGUSSA GmbHInventors: Hans Joachim Hasselbach, Martin Koerfer, Christof P. Gruener, Franz H. Hanrath, Juergen Stock, Jignesh Gangadwala, Horst Krull
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Patent number: 9102640Abstract: Apparatus and processes are provided for forming epoxide compounds. In one embodiment, a process for the manufacture of an epoxide is provided including adding an oxidant, a water-soluble manganese complex and a terminal olefin to form a multiphasic reaction mixture, reacting the terminal olefin with the oxidant in the multiphasic reaction mixture having at least one organic phase in the presence of the water-soluble manganese complex, separating the reaction mixture into the at least one organic phase and an aqueous phase, and reusing at least part of the aqueous phase. The invention is also related to a device for performing the above process.Type: GrantFiled: February 19, 2014Date of Patent: August 11, 2015Assignee: Evonik Degussa GmbHInventors: Prasad Muppa, Ron Postma, Bart Van Den Berg, Jürgen Stock, Holger Wiederhold, Hans Rausch, Jörg Schallenberg, Stefan Bernhardt
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Publication number: 20150175535Abstract: A method for production of a methionine salt in a reactive rectification column containing a weir having a height of 100 mm or more is provided.Type: ApplicationFiled: March 4, 2015Publication date: June 25, 2015Applicant: Evonik Degussa GmbHInventors: Hans Joachim HASSELBACH, Martin Koerfer, Christof P. Gruener, Franz H. Hanrath, Juergen Stock, Jignesh Gangadwala, Horst Krull
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Patent number: 9023284Abstract: A reaction system suitable for production of a methionine salt contains a reactive rectification column containing a weir having a height of 100 mm or more.Type: GrantFiled: August 29, 2012Date of Patent: May 5, 2015Assignee: Evonik Degussa GmbHInventors: Hans Joachim Hasselbach, Martin Koerfer, Christof P. Gruener, Franz H. Hanrath, Juergen Stock, Jignesh Gangadwala, Horst Krull
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Patent number: 8859790Abstract: Apparatus and processes are provided for forming epoxide compounds. In one embodiment, a process for the manufacture of an epoxide is provided including adding an oxidant, a water-soluble manganese complex and a terminal olefin to form a multiphasic reaction mixture, reacting the terminal olefin with the oxidant in the multiphasic reaction mixture having at least one organic phase in the presence of the water-soluble manganese complex, separating the reaction mixture into the at least one organic phase and an aqueous phase, and reusing at least part of the aqueous phase. The invention is also related to a device for performing the above process.Type: GrantFiled: January 26, 2011Date of Patent: October 14, 2014Assignee: Momentive Specialty Chemicals Inc.Inventors: Prasad Muppa, Ron Postma, Bart Van Den Berg, Juergen Stock, Holger Wiederhold, Hans Rausch, Jorg Schallenberg, Stefan Bernhardt
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Publication number: 20140171666Abstract: Apparatus and processes are provided for forming epoxide compounds. In one embodiment, a process for the manufacture of an epoxide is provided including adding an oxidant, a water-soluble manganese complex and a terminal olefin to form a multiphasic reaction mixture, reacting the terminal olefin with the oxidant in the multiphasic reaction mixture having at least one organic phase in the presence of the water-soluble manganese complex, separating the reaction mixture into the at least one organic phase and an aqueous phase, and reusing at least part of the aqueous phase. The invention is also related to a device for performing the above process.Type: ApplicationFiled: February 19, 2014Publication date: June 19, 2014Applicant: Momentive Specialty Chemicals Inc.Inventors: Prasad MUPPA, Ron Postma, Bart Van Den Berg, Juergen Stock, Holger Wiederhold, Hans Rausch, Jörg Schallenberg, Stefan Bernhardt
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Publication number: 20130231501Abstract: A reaction system suitable for production of a methionine salt contains a reactive rectification column containing a weir having a height of 100 mm or more.Type: ApplicationFiled: August 29, 2012Publication date: September 5, 2013Applicant: Evonik Degussa GmbHInventors: Hans Joachim Hasselbach, Martin Koerfer, Christof P. Gruener, Franz H. Hanrath, Juergen Stock, Jignesh Gangadwala, Horst Krull
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Publication number: 20130023680Abstract: Apparatus and processes are provided for forming epoxide compounds. In one embodiment, a process for the manufacture of an epoxide is provided including adding an oxidant, a water-soluble manganese complex and a terminal olefin to form a multiphasic reaction mixture, reacting the terminal olefin with the oxidant in the multiphasic reaction mixture having at least one organic phase in the presence of the water-soluble manganese complex, separating the reaction mixture into the at least one organic phase and an aqueous phase, and reusing at least part of the aqueous phase. The invention is also related to a device for performing the above process.Type: ApplicationFiled: January 26, 2011Publication date: January 24, 2013Inventors: Prasad Muppa, Ron Postma, Bart Van Den Berg, Juergen Stock, Holger Wiederhold, Hans Rausch, Jorg Schallenberg, Stefan Bernhardt
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Patent number: 7326953Abstract: The invention relates to a layered construction for a Gunn diode. The layered construction comprises a series of stacked layers consisting of a first highly doped nd GaAs layer (3), a graded AlGaAs layer (5), which is placed upon the first highly doped layer (3), whereby the aluminum concentration of this layer, starting from the boundary surface to the first nd GaAs layer (3), decreases toward the opposite boundary surface of the AlGaAs layer (5), and of a second highly doped n+ layer (7). An undoped intermediate layer (4, 6) serving as a diffusion or segregation stop layer is placed on at least one boundary surface of the AlGaAs layer (5) to one of the highly doped layers (3, 7) and prevents an unwanted doping of the graded layer.Type: GrantFiled: November 21, 2003Date of Patent: February 5, 2008Assignee: Forschungszentrum Julich GmbHInventors: Arnold Förster, Mihail Ion Lepsa, Jürgen Stock
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Patent number: 7119228Abstract: The present invention is directed to an improved process for producing methionine in which the by-product methionyl-methionine is quickly converted to the product methionine by a hydrolysis reaction. The process is performed at high temperatures (200° C. to 280° C.) and short residence times (20 s to 200 s) and results in an improved yield of end product methionine.Type: GrantFiled: February 10, 2005Date of Patent: October 10, 2006Assignee: Degussa AGInventors: Dieter Buss, Ron Stockfleth, Martin Körfer, Jürgen Stock, Ralf Goedecke, Hans-Joachim Hasselbach, Gundolf Hornung