Patents by Inventor Sjoerd Oostrom
Sjoerd Oostrom 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: 20250224325Abstract: A method and system for inspecting a surface. A lighting device is configured to provide a light beam focused at a focal point at a distance from a surface to cause a shockwave reaching the surface for dislodging particles from the surface and causing the particles dislodged from the surface to become airborne particles. A particle detector is configured to detect the airborne particles dislodged by the shockwave from the surface. For example, this can be used for quantifying a cleanliness and/or contamination of the surface by surface-bound nanoparticles, which were at least present on the surface prior to the shockwave, based on a detected amount of the airborne particles, after the shockwave is applied.Type: ApplicationFiled: April 3, 2023Publication date: July 10, 2025Inventors: Antonius Martinus Cornelis Petrus DE JONG, Sjoerd OOSTROM
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Patent number: 11536648Abstract: The optical inspection device is used for inspecting a planar object surface for the presence of particles and/or defects. A light source supplies light to the planar object surface of the object at a grazing angle. An image sensor receives light due to scattering from particles and defects on the object surface. The optical axis of the objective is at non-zero angles with the normal to the planar object surface and a direction or directions of specular reflection of the light from the light source by the planar object surface. A detection surface of the image detection device and the optical axis of the objective is in a Scheimpflug configuration. The light source and image sensor are located outside a space extending perpendicularly from the planar object surface, on opposite sides of that space. The image sensor comprises an objective and an image detection device. The device may further comprise a microscope or spectrometer to access the object surface through said space.Type: GrantFiled: July 15, 2019Date of Patent: December 27, 2022Assignee: Nederlandse Organisatie voortoegepast-natuurwetenschappelijk onderzoek TNOInventors: Bertram Adriaan Van Der Zwan, Sjoerd Oostrom, Bart Gerardus Speet
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Publication number: 20210270727Abstract: The optical inspection device is used for inspecting a planar object surface for the presence of particles and/or defects. A light source supplies light to the planar object surface of the object at a grazing angle. An image sensor receives light due to scattering from particles and defects on the object surface. The optical axis of the objective is at non-zero angles with the normal to the planar object surface and a direction or directions of specular reflection of the light from the light source by the planar object surface. A detection surface of the image detection device and the optical axis of the objective is in a Scheimpflug configuration. The light source and image sensor are located outside a space extending perpendicularly from the planar object surface, on opposite sides of that space. The image sensor comprises an objective and an image detection device. The device may further comprise a microscope or spectrometer to access the object surface through said space.Type: ApplicationFiled: July 15, 2019Publication date: September 2, 2021Inventors: Bertram Adriaan VAN DER ZWAN, Sjoerd OOSTROM, Bart Gerardus SPEET
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Patent number: 10262853Abstract: The invention is directed to a method for removing particulate contaminants from the backside of a wafer or reticle, and to a cleaning substrate for use in such method. In the method of the invention particulate contaminants are removed from the backside of a wafer or reticle with a cleaning substrate. The cleaning substrate comprises protrusions and a tacky layer between the protrusions. The method comprises contacting the backside of the wafer or reticle with the protrusions of the cleaning substrate while maintaining a distance between the wafer or reticle and the tacky layer, the distance being in the range of 1-10 ?m.Type: GrantFiled: May 29, 2015Date of Patent: April 16, 2019Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNOInventors: Sjoerd Oostrom, Jacques Cor Johan Van Der Donck, Olaf Kievit, Nicole Ellen Papen-Botterhuis
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Publication number: 20170194134Abstract: The invention is directed to a method for removing particulate contaminants from the backside of a wafer or reticle, and to a cleaning substrate for use in such method. In the method of the invention particulate contaminants are removed from the backside of a wafer or reticle with a cleaning substrate. The cleaning substrate comprises protrusions and a tacky layer between the protrusions. The method comprises contacting the backside of the wafer or reticle with the protrusions of the cleaning substrate while maintaining a distance between the wafer or reticle and the tacky layer, the distance being in the range of 1-10 ?m.Type: ApplicationFiled: May 29, 2015Publication date: July 6, 2017Applicant: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNOInventors: Sjoerd OOSTROM, Jacques Cor Johan VAN DER DONCK, Olaf KIEVIT, Nicole Ellen PAPEN-BOTTERHUIS
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Patent number: 8373343Abstract: The invention provides an optoelectric device, in particular an organic light emitting diode device comprising a substrate, a first electrode applied on the substrate, a second electrode, a layer of an organic light emitting material which is arranged in between the first electrode and the second electrode, and a multilayer seal applied onto the second electrode which multilayer seal comprises at least one layer of a high density material and at least one layer of an organic material in which organic material a moisture scavenging agent has been incorporated, which moisture scavenging agent comprises an organic composition that does not generate an acidic proton when subjected to hydrolysis. The invention also relates to an article comprising said organic light emitting device, and a method for preparing said device.Type: GrantFiled: October 26, 2007Date of Patent: February 12, 2013Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNOInventors: Jasper Joost Michels, Harmannus Franciscus Maria Schoo, Antonius Maria Bernardus Van Mol, Sjoerd Oostrom
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Publication number: 20100079062Abstract: The invention provides an optoelectric device, in particular an organic light emitting diode device comprising a substrate, a first electrode applied on the substrate, a second electrode, a layer of an organic light emitting material which is arranged in between the first electrode and the second electrode, and a multilayer seal applied onto the second electrode which multilayer seal comprises at least one layer of a high density material and at least one layer of an organic material in which organic material a moisture scavenging agent has been incorporated, which moisture scavenging agent comprises an organic composition that does not generate an acidic proton when subjected to hydrolysis. The invention also relates to an article comprising said organic light emitting device, and a method for preparing said device.Type: ApplicationFiled: October 26, 2007Publication date: April 1, 2010Applicant: Nederiandse Organisatie voor toegepast- natuurwetenschappelikj onderzoek TNOInventors: Jasper Joost Michels, Harmannus Franciscus Maria Schoo, Antonius Maria Bernardus Van Mol, Sjoerd Oostrom