Patents by Inventor Qingwei Mo
Qingwei Mo 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: 11658273Abstract: In embodiments of the invention, a passivation layer is disposed over a side of a semiconductor structure including a light emitting layer disposed between an n-type region and a p-type region. A material configured to adhere to an underfill is disposed over an etched surface of the semiconductor structure.Type: GrantFiled: December 21, 2020Date of Patent: May 23, 2023Assignee: Lumileds LLCInventors: Frederic Stephane Diana, Kwong-Hin Henry Choy, Qingwei Mo, Serge L. Rudaz, Frank L. Wei, Daniel A. Steigerwald
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Patent number: 11171266Abstract: Pre-formed wavelength conversion elements are attached to light emitting elements and are shaped to reduce repeated occurrences of total internal reflection. The sides of the shaped elements may be sloped or otherwise shaped so as to introduce a change in the angle of incidence of reflected light upon the light extraction surface of the wavelength conversion element. The pre-formed wavelength conversion elements may be configured to extend over an array of light emitting elements, with features between the light emitting elements that are shaped to reduce repeated occurrences of total internal reflection.Type: GrantFiled: July 31, 2018Date of Patent: November 9, 2021Assignee: Lumileds LLCInventors: Clarisse Mazuir, Qingwei Mo, Mei-Ling Kuo, Lin Li, Oleg Borisovich Shchekin
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Publication number: 20210111321Abstract: In embodiments of the invention, a passivation layer is disposed over a side of a semiconductor structure including a light emitting layer disposed between an n-type region and a p-type region. A material configured to adhere to an underfill is disposed over an etched surface of the semiconductor structure.Type: ApplicationFiled: December 21, 2020Publication date: April 15, 2021Applicant: LUMILEDS LLCInventors: Frederic Stephane Diana, Kwong-Hin Henry Choy, Qingwei Mo, Serge L. Rudaz, Frank L. Wei, Daniel A. Steigerwald
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Patent number: 10873013Abstract: In embodiments of the invention, a passivation layer is disposed over a side of a semiconductor structure including a light emitting layer disposed between an n-type region and a p-type region. A material configured to adhere to an underfill is disposed over an etched surface of the semiconductor structure.Type: GrantFiled: September 26, 2018Date of Patent: December 22, 2020Assignee: Lumileds LLCInventors: Frederic Stephane Diana, Kwong-Hin Henry Choy, Qingwei Mo, Serge L. Rudaz, Frank L. Wei, Daniel A. Steigerwald
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Publication number: 20190067534Abstract: Pre-formed wavelength conversion elements are attached to light emitting elements and are shaped to reduce repeated occurrences of total internal reflection. The sides of the shaped elements may be sloped or otherwise shaped so as to introduce a change in the angle of incidence of reflected light upon the light extraction surface of the wavelength conversion element. The pre-formed wavelength conversion elements may be configured to extend over an array of light emitting elements, with features between the light emitting elements that are shaped to reduce repeated occurrences of total internal reflection.Type: ApplicationFiled: July 31, 2018Publication date: February 28, 2019Applicant: Lumileds LLCInventors: Clarisse Mazuir, Qingwei Mo, Mei-Ling Kuo, Lin Li, Oleg Borisovich Shchekin
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Publication number: 20190027664Abstract: In embodiments of the invention, a passivation layer is disposed over a side of a semiconductor structure including a light emitting layer disposed between an n-type region and a p-type region. A material configured to adhere to an underfill is disposed over an etched surface of the semiconductor structure.Type: ApplicationFiled: September 26, 2018Publication date: January 24, 2019Inventors: Frederic Stephane Diana, Kwong-Hin Henry Choy, Qingwei Mo, Serge L. Rudaz, Frank L. Wei, Daniel A. Steigerwald
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Patent number: 10134965Abstract: In embodiments of the invention, a passivation layer is disposed over a side of a semiconductor structure including a light emitting layer disposed between an n-type region and a p-type region. A material configured to adhere to an underfill is disposed over an etched surface of the semiconductor structure.Type: GrantFiled: March 22, 2016Date of Patent: November 20, 2018Assignee: Lumileds LLCInventors: Frederic Stephane Diana, Kwong-Hin Henry Choy, Qingwei Mo, Serge L. Rudaz, Frank L. Wei, Daniel A. Steigerwald
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Patent number: 10134964Abstract: In embodiments of the invention, a passivation layer is disposed over a side of a semiconductor structure including a light emitting layer disposed between an n-type region and a p-type region. A material configured to adhere to an underfill is disposed over an etched surface of the semiconductor structure.Type: GrantFiled: May 29, 2013Date of Patent: November 20, 2018Assignee: LUMILEDS LLCInventors: Frederic S. Diana, Henry Kwong-Hin Choy, Qingwei Mo, Serge L. Rudaz, Frank L. Wei, Daniel A. Steigerwald
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Patent number: 10109774Abstract: Pre-formed wavelength conversion elements are attached to light emitting elements and are shaped to reduce repeated occurrences of total internal reflection. The sides of the shaped elements may be sloped or otherwise shaped so as to introduce a change in the angle of incidence of reflected light upon the light extraction surface of the wavelength conversion element. The pre-formed wavelength conversion elements may be configured to extend over an array of light emitting elements, with features between the light emitting elements that are shaped to reduce repeated occurrences of total internal reflection.Type: GrantFiled: August 12, 2014Date of Patent: October 23, 2018Assignee: Lumileds LLCInventors: Clarisse Mazuir, Qingwei Mo, Mei-Ling Kuo, Lin Li, Oleg Borisovich Shchekin
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Patent number: 9997686Abstract: A low-cost conductive carrier element provides structural support to a light emitting device (LED) die, as well as electrical and thermal coupling to the LED die. A lead-frame is provided that includes at least one carrier element, the carrier element being partitioned to form distinguishable conductive regions to which the LED die is attached. When the carrier element is separated from the frame, the conductive regions are electrically isolated from each other. A dielectric may be placed between the conductive regions of the carrier element.Type: GrantFiled: October 23, 2015Date of Patent: June 12, 2018Assignee: LUMILEDS LLCInventors: Qingwei Mo, Dirk Paul Joseph Vanderhaeghen
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Publication number: 20160204315Abstract: In embodiments of the invention, a passivation layer is disposed over a side of a semiconductor structure including a light emitting layer disposed between an n-type region and a p-type region. A material configured to adhere to an underfill is disposed over an etched surface of the semiconductor structure.Type: ApplicationFiled: March 22, 2016Publication date: July 14, 2016Inventors: Frederic Stephane Diana, Kwong-Hin Henry Choy, Qingwei Mo, Serge L. Rudaz, Frank L. Wei, Daniel A. Steigerwald
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Publication number: 20160190401Abstract: Pre-formed wavelength conversion elements are attached to light emitting elements and are shaped to reduce repeated occurrences of total internal reflection. The sides of the shaped elements may be sloped or otherwise shaped so as to introduce a change in the angle of incidence of reflected light upon the light extraction surface of the wavelength conversion element. The pre-formed wavelength conversion elements may be configured to extend over an array of light emitting elements, with features between the light emitting elements that are shaped to reduce repeated occurrences of total internal reflection.Type: ApplicationFiled: August 12, 2014Publication date: June 30, 2016Applicant: Koninklijke Philips N.V.Inventors: Clarisse Mazuir, Qingwei Mo, Mei-Ling Kuo, Lin Li, Oleg Borisovich Shchekin
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Publication number: 20160043295Abstract: A low-cost conductive carrier element provides structural support to a light emitting device (LED) die, as well as electrical and thermal coupling to the LED die. A lead-frame is provided that includes at least one carrier element, the carrier element being partitioned to form distinguishable conductive regions to which the LED die is attached. When the carrier element is separated from the frame, the conductive regions are electrically isolated from each other. A dielectric may be placed between the conductive regions of the carrier element.Type: ApplicationFiled: October 23, 2015Publication date: February 11, 2016Inventors: QINGWEI MO, DIRK PAUL JOSEPH VANDERHAEGHEN
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Patent number: 9172018Abstract: A low-cost conductive carrier element provides structural support to a light emitting device (LED) die, as well as electrical and thermal coupling to the LED die. A lead-frame is provided that includes at least one carrier element, the carrier element being partitioned to form distinguishable conductive regions to which the LED die is attached. When the carrier element is separated from the frame, the conductive regions are electrically isolated from each other. A dielectric may be placed between the conductive regions of the carrier element.Type: GrantFiled: November 14, 2011Date of Patent: October 27, 2015Assignee: Koninklijke Philips N.V.Inventors: Qingwei Mo, Dirk Paul Joseph Vanderhaeghen
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Publication number: 20130252358Abstract: In embodiments of the invention, a passivation layer is disposed over a side of a semiconductor structure including a light emitting layer disposed between an n-type region and a p-type region. A material configured to adhere to an underfill is disposed over an etched surface of the semiconductor structure.Type: ApplicationFiled: May 29, 2013Publication date: September 26, 2013Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Frederic S. Diana, Henry Kwong-Hin Choy, Qingwei Mo, Serge L. Rudaz, Frank L. Wei, Daniel A. Steigerwald
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Publication number: 20130221386Abstract: A low-cost conductive carrier element provides structural support to a light emitting device (LED) die, as well as electrical and thermal coupling to the LED die. A lead-frame is provided that includes at least one carrier element, the carrier element being partitioned to form distinguishable conductive regions to which the LED die is attached. When the carrier element is separated from the frame, the conductive regions are electrically isolated from each other. A dielectric may be placed between the conductive regions of the carrier element.Type: ApplicationFiled: November 14, 2011Publication date: August 29, 2013Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Qingwei Mo, Dirk Paul Joseph Vanderhaeghen
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Patent number: 8471282Abstract: In embodiments of the invention, a passivation layer is disposed over a side of a semiconductor structure including a light emitting layer disposed between an n-type region and a p-type region. A material configured to adhere to an underfill is disposed over an etched surface of the semiconductor structure.Type: GrantFiled: June 7, 2010Date of Patent: June 25, 2013Assignees: Koninklijke Philips Electronics N.V., Philips Lumileds Lighting Company, LLCInventors: Frederic S. Diana, Henry Kwong-Hin Choy, Qingwei Mo, Serge I. Rudaz, Frank L. Wei, Daniel A. Steigerwald
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Patent number: 8324652Abstract: A semiconductor device emitting light about a predetermined wavelength comprising a structure comprising a plurality of layers, sometimes referred to as a stack, providing low resistance, high reflectivity and ohmic contacts to at least one semiconductor material.Type: GrantFiled: October 30, 2009Date of Patent: December 4, 2012Assignee: Bridgelux, Inc.Inventors: Steven D. Lester, Frank Shum, Chao-Kun Lin, William So, Qingwei Mo
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Publication number: 20110297979Abstract: In embodiments of the invention, a passivation layer is disposed over a side of a semiconductor structure including a light emitting layer disposed between an n-type region and a p-type region. A material configured to adhere to an underfill is disposed over an etched surface of the semiconductor structure.Type: ApplicationFiled: June 7, 2010Publication date: December 8, 2011Applicants: PHILIPS LUMILEDS LIGHTING COMPANY, LLC, KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Frederic S. DIANA, Henry Kwong-Hin CHOY, Qingwei MO, Serge L. RUDAZ, Frank L. WEI, Daniel A, STEIGERWALD
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Patent number: 7687810Abstract: An etching step is performed on an LED/substrate wafer to etch through the LED epitaxial layers entirely around each LED on the substrate wafer to form a gap between each LED on the wafer. The substrate is not etched. When the LEDs/substrates are singulated, edges of each substrate extend beyond edges of the LED die. The LEDs are flip-chips and are mounted on a submount with the LED die between the submount and the substrate. An insulating underfill material is injected under the LED die and also covers the sides of the LED die and “enlarged” substrate. The substrate is then removed by laser lift-off. The raised walls of the underfill that were along the edges of the enlarged substrate are laterally spaced from the edges of the LED die so that a phosphor plate can be easily positioned on top to the LED die with a relaxed positioning tolerance.Type: GrantFiled: October 22, 2007Date of Patent: March 30, 2010Assignees: Philips Lumileds Lighting Company, LLC, Koninklijke Philip Electronics N.V.Inventors: Qingwei Mo, Arnold Daguio