Patents by Inventor Gert-Jan Snijders
Gert-Jan Snijders 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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Publication number: 20230296417Abstract: The invention relates to a thermal-type flow sensor (1) for a flow meter, comprising a main channel part (3b) with a main channel (3) for a medium whose flow is to be determined, a sensor tube (4), having a first tube portion (5), a second, opposite tube portion (8), a sensing portion (11) connecting the first and second tube portions, at least two sensing or heating elements (12) for measuring a temperature differential or a power differential in the sensor tube, a thermally conductive frame element (13) in contact with at least the first tube portion, the second tube portion as well as the main channel part, configured to equalize temperature gradients, wherein thermally conductive frame element (13) is a printed circuit board (PCB) (14).Type: ApplicationFiled: July 22, 2021Publication date: September 21, 2023Inventors: Coen Adrian Robert Tom BRUGGEMAN, Tristan DOORNEBOSCH, Erik Pieter VAN GAASBEEK, Hefney Job DE HAAN, Gert Jan SNIJDERS, René Henri Wouter VAN DER WAL
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Patent number: 10627274Abstract: Flow measurement system comprising a flow tube for the fluid whose flow rate is to be determined, wherein said system comprises at least three ultrasound transducer circuitry, wherein each circuitry comprises an ultrasound transducer arranged for transmitting ultrasound signals through said fluid in a transmitting phase, and for receiving transmitted signals from another of said at least three ultrasound transducers in a receiving phase, multiple receiving circuits, wherein each receiving circuit is arranged for reading out one of said at least three ultrasound transducers in a corresponding receiving phase thereof, and multiplexer circuitry ground arranged for selectively connecting each of said multiple receiving circuits to a different one of said at least three ultrasound transducers, respectively.Type: GrantFiled: July 26, 2016Date of Patent: April 21, 2020Assignee: BERKIN B.V.Inventors: Gert Jan Snijders, Eduard Dieter Van Hattum, Coen Adriaan Robert Tom Bruggeman
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Publication number: 20180224307Abstract: Flow measurement system comprising a flow tube for the fluid whose flow rate is to be determined, wherein said system comprises at least three ultrasound transducer circuitry, wherein each circuitry comprises an ultrasound transducer arranged for transmitting ultrasound signals through said fluid in a transmitting phase, and for receiving transmitted signals from another of said at least three ultrasound transducers in a receiving phase, multiple receiving circuits, wherein each receiving circuit is arranged for reading out one of said at least three ultrasound transducers in a corresponding receiving phase thereof, and multiplexer circuitry ground arranged for selectively connecting each of said multiple receiving circuits to a different one of said at least three ultrasound transducers, respectively.Type: ApplicationFiled: July 26, 2016Publication date: August 9, 2018Inventors: Gert Jan Snijders, Eduard Dieter Van Hattum, Coen Adriaan Robert Tom Bruggeman
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Patent number: 9851232Abstract: The invention relates to an ultrasonic flow meter comprising a flow tube for the fluid whose flow rate is to be determined. The flow meter comprises a transmitting element for emitting ultrasonic waves, which is provided on the outer jacket of the flow tube. A receiving element, which is provided on the outer jacket of the flow tube, is axially spaced from the transmitting element. An influencing element is provided between the transmitting element and the receiving element for influencing the velocity and/or the direction of a portion of the ultrasonic waves.Type: GrantFiled: April 17, 2014Date of Patent: December 26, 2017Assignee: BERKIN B.V.Inventors: Joost Conrad Lötters, Gert Jan Snijders, Arno Willem Frederik Volker
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Publication number: 20170038234Abstract: The invention relates to an ultrasonic flow meter comprising a flow tube for the fluid whose flow rate is to be determined. The flow meter comprises a transmitting element for emitting ultrasonic waves, which is provided on the outer jacket of the flow tube. A receiving element, which is provided on the outer jacket of the flow tube, is axially spaced from the transmitting element. An influencing element is provided between the transmitting element and the receiving element for influencing the velocity and/or the direction of a portion of the ultrasonic waves.Type: ApplicationFiled: April 17, 2014Publication date: February 9, 2017Inventors: Joost Conrad LÖTTERS, Gert Jan SNIJDERS, Arno Willem Frederik VOLKER
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Patent number: 8343583Abstract: Methods and systems for depositing a film on a substrate are disclosed. In one embodiment, a method includes converting a non-gaseous precursor into vapor phase. Converting the precursor includes: forming a fluidized bed by flowing gas at a sufficiently high flow rate to suspend and stir a plurality of solid particles, and converting the phase of the non-gaseous precursor into vapor phase in the fluidized bed. The method also includes transferring the precursor in vapor phase through a passage; and performing deposition on one or more substrates with the transferred precursor in vapor phase.Type: GrantFiled: July 7, 2009Date of Patent: January 1, 2013Assignee: ASM International N.V.Inventors: Gert Jan Snijders, Ivo Raaijmakers
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Patent number: 7966969Abstract: Titanium nitride (TiN) films are formed in a batch reactor using titanium chloride (TiCl4) and ammonia (NH3) as precursors. The TiCl4 is flowed into the reactor in temporally separated pulses. The NH3 can also be flowed into the reactor in temporally spaced pulses which alternate with the TiCl4 pulses, or the NH3 can be flowed continuously into the reactor while the TiCl4 is introduced in pulses. The resulting TiN films exhibit low resistivity and good uniformity.Type: GrantFiled: March 31, 2005Date of Patent: June 28, 2011Assignee: ASM International N.V.Inventors: Albert Hasper, Gert-Jan Snijders, Lieve Vandezande, Marinus J. De Blank, Radko Gerard Bankras
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Patent number: 7732350Abstract: Titanium nitride (TiN) films are formed in a batch reactor using titanium chloride (TiCl4) and ammonia (NH3) as precursors. The TiCl4 is flowed into the reactor in temporally separated pulses. The NH3 can also be flowed into the reactor in temporally spaced pulses which alternate with the TiCl4 pulses, or the NH3 can be flowed continuously into the reactor while the TiCl4 is introduced in pulses. The resulting TiN films exhibit low resistivity and good uniformity.Type: GrantFiled: December 4, 2006Date of Patent: June 8, 2010Assignee: ASM International N.V.Inventors: Albert Hasper, Gert-Jan Snijders, Lieve Vandezande, Marinus J. De Blank, Radko Gerard Bankras
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Publication number: 20100009080Abstract: Methods and systems for depositing a film on a substrate are disclosed. In one embodiment, a method includes converting a non-gaseous precursor into vapor phase. Converting the precursor includes: forming a fluidized bed by flowing gas at a sufficiently high flow rate to suspend and stir a plurality of solid particles, and converting the phase of the non-gaseous precursor into vapor phase in the fluidized bed. The method also includes transferring the precursor in vapor phase through a passage; and performing deposition on one or more substrates with the transferred precursor in vapor phase.Type: ApplicationFiled: July 7, 2009Publication date: January 14, 2010Applicant: ASM INTERNATIONAL N.V.Inventors: Gert Jan Snijders, Ivo Raaijmakers
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Patent number: 7427571Abstract: Particle formation in semiconductor fabrication process chambers is reduced by preventing condensation on the door plates that seal off the process chambers. Particles can be formed in a process chamber when reactant gases condense on the relatively cool surfaces of a door plate. This particle formation is minimized by heating the door plate to a temperature high enough to prevent condensation before flowing reactant gases into the process chamber. The door plate can be heated using a heat source, e.g., a resistive heater, that is in direct contact with the door plate or the heat source can heat the door plate from a distance by radiative or inductive heating. In addition, the door plate can open to allow loading and unloading of a wafer load. As it passes flanges near the door plate, the wafer load can transfer heat to those flanges. To prevent overheating, the flange is provided with a coolant-containing channel having walls that are spaced from the flange by O-rings.Type: GrantFiled: October 14, 2005Date of Patent: September 23, 2008Assignee: ASM International, N.V.Inventors: Bartholomeus Hans Louis Lindeboom, Gert-Jan Snijders
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Patent number: 7410355Abstract: A substrate undergoes a semiconductor fabrication process at different temperatures in a reactor without changing the temperature of the reactor. The substrate is held suspended by flowing gas between two heated surfaces of the reactor. Moving the two heated surfaces in close proximity with the substrate for a particular time duration heats the substrate to a desired temperature. The desired temperature is then maintained by distancing the heated surfaces from the substrate and holding the heated surface at the increased distance to minimize further substrate heating.Type: GrantFiled: February 17, 2006Date of Patent: August 12, 2008Assignee: ASM International N.V.Inventors: Ernst H. A. Granneman, Vladimir I. Kuznetsov, Xavier Pages, Pascal G. Vermont, Herbert Terhorst, Gert-Jan Snijders
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Patent number: 7253107Abstract: A pressure control system allows gas to be evacuated out of a semiconductor process chamber at a substantially constant rate of mass flow. A gas line connects the process chamber to a vacuum pump. A controllable valve having a variable sized opening is positioned between the process chamber and the vacuum pump. A pressure sensor is in turn positioned between the valve and the vacuum pump, proximate the inlet to the vacuum pump. The size of the variable sized opening is regulated based upon the pressure in the gas line measured by the pressure sensor. The size of the valve opening is varied to maintain the pressure measured by the pressure sensor at a constant value. As a result, because the quantity of gas flowing through the gas line is proportional to the gas pressure, a substantially constant mass flow of gas out of the chamber and into the pump can be achieved.Type: GrantFiled: June 17, 2004Date of Patent: August 7, 2007Assignee: ASM International N.V.Inventor: Gert Jan Snijders
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Publication number: 20070077775Abstract: Titanium nitride (TiN) films are formed in a batch reactor using titanium chloride (TiCl4) and ammonia (NH3) as precursors. The TiCl4 is flowed into the reactor in temporally separated pulses. The NH3 can also be flowed into the reactor in temporally spaced pulses which alternate with the TiCl4 pulses, or the NH3 can be flowed continuously into the reactor while the TiCl4 is introduced in pulses. The resulting TiN films exhibit low resistivity and good uniformity.Type: ApplicationFiled: December 4, 2006Publication date: April 5, 2007Inventors: Albert Hasper, Gert-Jan Snijders, Lieve Vandezande, Marinus De Blank, Radko Bankras
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Publication number: 20060141808Abstract: A substrate undergoes a semiconductor fabrication process at different temperatures in a reactor without changing the temperature of the reactor. The substrate is held suspended by flowing gas between two heated surfaces of the reactor. Moving the two heated surfaces in close proximity with the substrate for a particular time duration heats the substrate to a desired temperature. The desired temperature is then maintained by distancing the heated surfaces from the substrate and holding the heated surface at the increased distance to minimize further substrate heating.Type: ApplicationFiled: February 17, 2006Publication date: June 29, 2006Inventors: Ernst Granneman, Vladimir Kuznetsov, Xavier Pages, Pascal Vermont, Herbert Terhorst, Gert-Jan Snijders
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Publication number: 20060105107Abstract: Particle formation in semiconductor fabrication process chambers is reduced by preventing condensation on the door plates that seal off the process chambers. Particles can be formed in a process chamber when reactant gases condense on the relatively cool surfaces of a door plate. This particle formation is minimized by heating the door plate to a temperature high enough to prevent condensation before flowing reactant gases into the process chamber. The door plate can be heated using a heat source, e.g., a resistive heater, that is in direct contact with the door plate or the heat source can heat the door plate from a distance by radiative or inductive heating. In addition, the door plate can open to allow loading and unloading of a wafer load. As it passes flanges near the door plate, the wafer load can transfer heat to those flanges. To prevent overheating, the flange is provided with a coolant-containing channel having walls that are spaced from the flange by O-rings.Type: ApplicationFiled: October 14, 2005Publication date: May 18, 2006Inventors: Bartholomeus Lindeboom, Gert-Jan Snijders
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Publication number: 20060060137Abstract: Titanium nitride (TiN) films are formed in a batch reactor using titanium chloride (TiCl4) and ammonia (NH3) as precursors. The TiCl4 is flowed into the reactor in temporally separated pulses. The NH3 can also be flowed into the reactor in temporally spaced pulses which alternate with the TiCl4 pulses, or the NH3 can be flowed continuously into the reactor while the TiCl4 is introduced in pulses. The resulting TiN films exhibit low resistivity and good uniformity.Type: ApplicationFiled: March 31, 2005Publication date: March 23, 2006Inventors: Albert Hasper, Gert-Jan Snijders, Lieve Vandezande, Marinus De Blank, Radko Bankras
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Patent number: 6981517Abstract: A gas supply system for pulse-wise feeding a reactant gas to a reactor, the gas supply system comprising: a first valve being a four-port diaphragm valve; a second valve which in an open state brings the first port into fluid communication with an exhaust and in a closed state closes off said fluid communication; wherein the gas supply system provides a reactant flow state in which the first valve is in an open state and the second valve is in a closed state, and wherein the gas supply system provides a purge state in which the first valve is closed and the second valve is in a open state. Also disclosed are a method of switching a process fluid by operating a gas supply system according to the invention and a valve assembly for use in such a gas supply system.Type: GrantFiled: June 9, 2004Date of Patent: January 3, 2006Assignee: ASM International N.V.Inventor: Gert-Jan Snijders
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Patent number: 6877250Abstract: In an apparatus for a treatment of a wafer at elevated temperatures, the wafer is taken out of the reactor after heat treatment with the help of a mechanical transport apparatus which preferably grips the wafer around the circumference and on the under side. The transport apparatus includes a wafer surrounding ring. The wafer is placed in a floating wafer reactor where it is cooled in a controlled manner. Transport for further action or treatment then takes place.Type: GrantFiled: December 10, 2002Date of Patent: April 12, 2005Assignee: ASM International N.V.Inventors: Ernst Hendrik August Granneman, Vladimir Ivanovich Kuznetsov, Gert Jan Snijders
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Patent number: 6876191Abstract: An apparatus for treating wafers, provided with at least one treatment chamber, the apparatus being provided with a feeding section in which wafers contained in a wafer storage box can be fed into the apparatus, the apparatus being provided with a wafer handling apparatus, by means of which wafers can be taken out of the wafer storage boxes so as to be treated in the treatment chamber, and the apparatus being provided with at least one sensor box arranged such that the wafer handling apparatus can feed a wafer into the sensor box through an opening provided for that purpose in the at least one sensor box, and the at least one sensor box being arranged to carry out measurements at a wafer, wherein the at least one sensor box is movably arranged and the apparatus is provided with a sensor box handling apparatus arranged to move the at least one sensor box from a storage position to a measuring position.Type: GrantFiled: February 24, 2003Date of Patent: April 5, 2005Assignee: ASM International N.V.Inventors: Christianus Gerardus M. de Ridder, Gert-Jan Snijders, Albert Hasper, Jan Zinger
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Patent number: D1000985Type: GrantFiled: December 23, 2021Date of Patent: October 10, 2023Assignee: BERKIN B.V.Inventors: Hans van de Bospoort, Coen Adrian Robert Tom Bruggeman, Nils Kupper, Gert Jan Snijders