Patents by Inventor Kai-Chung Hou
Kai-Chung Hou 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: 10667377Abstract: A target material is provided at a target location, the target material including a material that emits extreme ultraviolet light when converted to plasma, and the target material extending in a first extent along a first direction and in a second extent along a second direction; an amplified light beam is directed along a direction of propagation toward the target location; and the amplified light beam is focused in a focal plane, where the target location is outside of the focal plane and an interaction between the amplified light beam and the target material converts at least part of the target material to plasma that emits EUV light.Type: GrantFiled: December 28, 2015Date of Patent: May 26, 2020Assignee: ASML Netherlands B.V.Inventors: Robert Jay Rafac, Richard L. Sandstrom, Daniel John William Brown, Kai-Chung Hou
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Patent number: 10090631Abstract: A cladding stripper includes a plurality of transversal notches or grooves in the outer surface of an exposed inner cladding of a double clad optical fiber. Position and orientation of the notches can be selected to even out cladding light release along the cladding light stripper, enabling more even temperature distributions due to released cladding light. The notches on the optical fiber can be made with a laser ablation system.Type: GrantFiled: December 29, 2016Date of Patent: October 2, 2018Assignee: Lumentum Operations LLCInventors: Kai-Chung Hou, Dahv Kliner, Martin H. Muendel, Jeremy Weston
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Publication number: 20170110845Abstract: A cladding stripper includes a plurality of transversal notches or grooves in the outer surface of an exposed inner cladding of a double clad optical fiber. Position and orientation of the notches can be selected to even out cladding light release along the cladding light stripper, enabling more even temperature distributions due to released cladding light. The notches on the optical fiber can be made with a laser ablation system.Type: ApplicationFiled: December 29, 2016Publication date: April 20, 2017Inventors: Kai-Chung HOU, Dahv KLINER, Martin H. MUENDEL, Jeremy WESTON
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Patent number: 9547121Abstract: A cladding stripper includes a plurality of transversal notches or grooves in the outer surface of an exposed inner cladding of a double clad optical fiber. Position and orientation of the notches can be selected to even out cladding light release along the cladding light stripper, enabling more even temperature distributions due to released cladding light. The notches on the optical fiber can be made with a laser ablation system.Type: GrantFiled: January 28, 2014Date of Patent: January 17, 2017Assignee: Lumentum Operations LLCInventors: Kai-Chung Hou, Dahv Kliner, Martin H. Muendel, Jeremy Weston
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Patent number: 9519317Abstract: A locking component, a locking device and a host comprising the locking device are disclosed. The host comprises a card slot which extends along a second direction for inserting an interface card in a first direction which is substantially perpendicular to the second direction. The locking component includes a locking element and a pivot element. The locking element includes two opposite sliding slots each of which has a first and a second slide portion connecting each other. The locking element is adapted for sliding in the second direction such that the first and second slide portions of each sliding slot maintain a distance. The pivot element is adapted for passing through the sliding slots to be disposed at a host such that the locking element is pivotable about the pivot element. Upon positioning the pivot element at the first slide portions, the locking element is rotatable from an open position to an intermediate position.Type: GrantFiled: September 29, 2015Date of Patent: December 13, 2016Assignee: Lenovo Enterprise Solutions (Singapore) Pte. Ltd.Inventors: Kai Chung Hou, Zhi Da Huang
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Publication number: 20160192468Abstract: A target material is provided at a target location, the target material including a material that emits extreme ultraviolet light when converted to plasma, and the target material extending in a first extent along a first direction and in a second extent along a second direction; an amplified light beam is directed along a direction of propagation toward the target location; and the amplified light beam is focused in a focal plane, where the target location is outside of the focal plane and an interaction between the amplified light beam and the target material converts at least part of the target material to plasma that emits EUV light.Type: ApplicationFiled: December 28, 2015Publication date: June 30, 2016Inventors: Robert Jay Rafac, Richard L. Sandstrom, Daniel John William Brown, Kai-Chung Hou
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Publication number: 20160095237Abstract: A locking component, a locking device and a host comprising the locking device are disclosed. The host comprises a card slot which extends along a second direction for inserting an interface card in a first direction which is substantially perpendicular to the second direction. The locking component includes a locking element and a pivot element. The locking element includes two opposite sliding slots each of which has a first and a second slide portion connecting each other. The locking element is adapted for sliding in the second direction such that the first and second slide portions of each sliding slot maintain a distance. The pivot element is adapted for passing through the sliding slots to be disposed at a host such that the locking element is pivotable about the pivot element. Upon positioning the pivot element at the first slide portions, the locking element is rotatable from an open position to an intermediate position.Type: ApplicationFiled: September 29, 2015Publication date: March 31, 2016Inventors: Kai Chung Hou, Zhi Da Huang
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Patent number: 9232623Abstract: A target material is provided at a target location, the target material including a material that emits extreme ultraviolet light when converted to plasma, and the target material extending in a first extent along a first direction and in a second extent along a second direction; an amplified light beam is directed along a direction of propagation toward the target location; and the amplified light beam is focused in a focal plane, where the target location is outside of the focal plane and an interaction between the amplified light beam and the target material converts at least part of the target material to plasma that emits EUV light.Type: GrantFiled: September 17, 2014Date of Patent: January 5, 2016Assignee: ASML Netherlands B.V.Inventors: Robert J. Rafac, Richard L. Sandstrom, Daniel Brown, Kai-Chung Hou
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Publication number: 20150208494Abstract: A target material is provided at a target location, the target material including a material that emits extreme ultraviolet light when converted to plasma, and the target material extending in a first extent along a first direction and in a second extent along a second direction; an amplified light beam is directed along a direction of propagation toward the target location; and the amplified light beam is focused in a focal plane, where the target location is outside of the focal plane and an interaction between the amplified light beam and the target material converts at least part of the target material to plasma that emits EUV light.Type: ApplicationFiled: September 17, 2014Publication date: July 23, 2015Inventors: Robert J. Rafac, Richard L. Sandstrom, Daniel Brown, Kai-Chung Hou
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Patent number: 8958143Abstract: A device is described herein which may comprise an optical amplifier having a gain band including wavelengths ?1 and ?2, with ?1??2; a pre-pulse seed laser having a tuning module for tuning a pre-pulse output to wavelength ?1; a main pulse seed laser generating a laser output having wavelength, ?2; and a beam combiner for directing the pre-pulse output and the main pulse output on a common path through the optical amplifier.Type: GrantFiled: February 3, 2014Date of Patent: February 17, 2015Assignee: ASML Netherlands B.V.Inventors: Kai-Chung Hou, Richard L. Sandstrom, William N. Partlo, Daniel J. W. Brown, Igor V. Fomenkov
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Publication number: 20140211818Abstract: A cladding stripper includes a plurality of transversal notches or grooves in the outer surface of an exposed inner cladding of a double clad optical fiber. Position and orientation of the notches can be selected to even out cladding light release along the cladding light stripper, enabling more even temperature distributions due to released cladding light. The notches on the optical fiber can be made with a laser ablation system.Type: ApplicationFiled: January 28, 2014Publication date: July 31, 2014Inventors: Kai-Chung HOU, Dahv Kliner, Martin H. Muendel, Jeremy Weston
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Publication number: 20140146387Abstract: A device is described herein which may comprise an optical amplifier having a gain band including wavelengths ?1 and ?2, with ?1??2; a pre-pulse seed laser having a tuning module for tuning a pre-pulse output to wavelength ?1; a main pulse seed laser generating a laser output having wavelength, ?2; and a beam combiner for directing the pre-pulse output and the main pulse output on a common path through the optical amplifier.Type: ApplicationFiled: February 3, 2014Publication date: May 29, 2014Applicant: CYMER, LLCInventors: Kai-Chung Hou, Richard L. Sandstrom, William N. Partlo, Daniel J.W. Brown, Igor V. Fomenkov
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Patent number: 8654438Abstract: A device is described herein which may comprise an optical amplifier having a gain band including wavelengths ?1 and ?2, with ?1??2; a pre-pulse seed laser having a tuning module for tuning a pre-pulse output to wavelength ?1; a main pulse seed laser generating a laser output having wavelength, ?2; and a beam combiner for directing the pre-pulse output and the main pulse output on a common path through the optical amplifier.Type: GrantFiled: March 31, 2011Date of Patent: February 18, 2014Assignee: Cymer, LLCInventors: Kai-Chung Hou, Richard L. Sandstrom, William N. Partlo, Daniel J. W. Brown, Igor V. Fomenkov
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Patent number: 8462425Abstract: As disclosed herein, in a first aspect, a device may comprise: an oscillator producing a light output on a beam path; a target material for interaction with light on the beam path at an irradiation site; a beam delay on the beam path the beam delay having a beam folding optical arrangement; and a switch positioned along the beam path and interposed between the oscillator and the beam delay; the switch closable to divert at least a portion of light on the beam path from the beam path, the switch having close time, t1 and the beam path having a length, L1, along the path from the switch to the irradiation site; with t1<cL1, where c is the speed of light on the path, to protect the oscillator.Type: GrantFiled: March 31, 2011Date of Patent: June 11, 2013Assignee: Cymer, Inc.Inventors: Kai-Chung Hou, Richard L. Sandstrom, William N. Partlo, Daniel J. W. Brown, Igor V. Fomenkov
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Publication number: 20120092746Abstract: As disclosed herein, in a first aspect, a device may comprise: an oscillator producing a light output on a beam path; a target material for interaction with light on the beam path at an irradiation site; a beam delay on the beam path the beam delay having a beam folding optical arrangement; and a switch positioned along the beam path and interposed between the oscillator and the beam delay; the switch closable to divert at least a portion of light on the beam path from the beam path, the switch having close time, t1 and the beam path having a length, L1, along the path from the switch to the irradiation site; with t1<cL1, where c is the speed of light on the path, to protect the oscillator.Type: ApplicationFiled: March 31, 2011Publication date: April 19, 2012Applicant: CYMER, INC.Inventors: Kai-Chung Hou, Richard L. Sandstrom, William N. Partlo, Daniel J.W. Brown, Igor V. Fomenkov
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Patent number: 8107167Abstract: A beam combining system suitable of pulsed fiber laser applications is able to produce non-spatial-dispersive beams using an highly efficient filter, such as a multilayer dielectric filter, in transmission and reflection configurations. The techniques therefore can overcome constraints on laser line-width and beam width and allow for more stable systems for high peak power pulsed laser energy, such as may be used in extreme ultraviolet lithography and other applications.Type: GrantFiled: May 4, 2009Date of Patent: January 31, 2012Assignee: The Regents of The University of MichiganInventors: Almantas Galvanauskas, Kai-Chung Hou
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Publication number: 20110317256Abstract: A device is described herein which may comprise an optical amplifier having a gain band including wavelengths ?1 and ?2, with ?1??2; a pre-pulse seed laser having a tuning module for tuning a pre-pulse output to wavelength ?1; a main pulse seed laser generating a laser output having wavelength, ?2; and a beam combiner for directing the pre-pulse output and the main pulse output on a common path through the optical amplifier.Type: ApplicationFiled: March 31, 2011Publication date: December 29, 2011Applicant: CYMER, INC.Inventors: Kai-Chung Hou, Richard L. Sandstorm, William N. Partlo, Daniel J.W. Brown, Igor V. Fomenkov
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Patent number: 8016995Abstract: An electrochemical deposition method includes disposing a mold into an electrolytic bath for forming a first metal layer on a surface of the mold, bonding a first surface of a conductive component to the first metal layer, and disposing the mold bonded to the conductive component into an electrolytic bath for forming a second metal layer on a second surface of the conductive component.Type: GrantFiled: April 3, 2008Date of Patent: September 13, 2011Assignee: Lite-On Technology CorporationInventor: Kai-Chung Hou
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Publication number: 20100277804Abstract: A beam combining system suitable of pulsed fiber laser applications is able to produce non-spatial-dispersive beams using an highly efficient filter, such as a multilayer dielectric filter, in transmission and reflection configurations. The techniques therefore can overcome constraints on laser line-width and beam width and allow for more stable systems for high peak power pulsed laser energy, such as may be used in extreme ultraviolet lithography and other applications.Type: ApplicationFiled: May 4, 2009Publication date: November 4, 2010Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Almantas Galvanauskas, Kai-Chung Hou
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Publication number: 20090135082Abstract: An antenna carrier includes a first carrier block and a second carrier block. A radiator of the antenna carrier includes a first radiation block and a second radiation block. The first carrier block is disposed at a position corresponding to the first radiation block of the radiator. The first carrier block is made of material having a first dielectric constant. The second carrier block is disposed at a position corresponding to the second radiation block of the radiator and is connected to the first carrier block. The second carrier block is made of material having a second dielectric constant. The second dielectric constant is different from the first dielectric constant.Type: ApplicationFiled: September 11, 2008Publication date: May 28, 2009Inventor: Kai-Chung Hou