Patents by Inventor Maryanne Becerra

Maryanne Becerra 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).

  • Patent number: 10505083
    Abstract: Methods for fabricating a semiconductor devices, and in particular light emitting diodes (LEDS) comprising providing a plurality of semiconductor devices on a substrate and forming a contact on at least some of the semiconductor devices. A containment structure is formed on at least some of the semiconductor devices having a contact with each containment structure defining a deposition area excluding the contact. A coating material is deposited then within the deposition area, with the coating material not covering the contact. A light emitting diode (LED) chip wafer comprising a plurality of LEDs on a substrate wafer with at least some of the LEDs having a contact. A plurality of containment structures are included, each of which is associated with a respective one of the plurality of LEDs. Each of the containment structures at least partially on its respective one of the LEDs and defining a deposition area on its respective one of the LEDs. The deposition area excludes the contact.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: December 10, 2019
    Assignee: CREE, INC.
    Inventors: James Ibbetson, Kristi Wong, Maryanne Becerra
  • Patent number: 8969908
    Abstract: An emitter package comprising a light emitting diode (LED) mounted to the surface of a submount with the surface having a first meniscus forming feature around the LED. A matrix encapsulant is included on the surface and covering the LED. The outer edge of the matrix encapsulant adjacent the surface is defined by the meniscus forming feature and the encapsulant forms a substantially dome-shaped covering over said LED. A method for manufacturing an LED package by providing a body with a surface having a first meniscus holding feature. An LED is mounted to the surface with the meniscus holding feature around the LED. A liquid matrix encapsulant is introduced over the LED and the surface, the first meniscus holding feature holding the liquid matrix encapsulant in a dome-shape over the LED. The matrix encapsulant is then cured.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: March 3, 2015
    Assignee: Cree, Inc.
    Inventors: Gerald Negley, Michael Leung, Maryanne Becerra, Eric Tarsa, Peter Andrews
  • Patent number: 8735920
    Abstract: A light emitting diode (LED) package comprising a substrate with an LED chip mounted to the substrate and in electrical contact with it. An inner material covers the LED chip, and a lens covers the inner material with the lens material being harder than the inner material. An adhesive is arranged between the substrate and the lens to hold the lens to the substrate and to compensate for different coefficients of thermal expansion (CTE) between the lens and the remainder of the package. A method for forming an LED package comprises providing a substrate with a first meniscus ring on a surface of the substrate. An LED chip is mounted to the substrate, within the meniscus ring. An inner material is deposited over the LED chip, and a lens material in liquid form is deposited over the inner material. The lens material held in a hemispheric shape by the first meniscus feature and the lens material is cured making it harder than the inner material.
    Type: Grant
    Filed: July 31, 2006
    Date of Patent: May 27, 2014
    Assignee: Cree, Inc.
    Inventors: James Ibbetson, Eric Tarsa, Michael Leung, Maryanne Becerra, Bernd Keller
  • Publication number: 20120037931
    Abstract: Methods of packaging a semiconductor light emitting device include dispensing a first quantity of encapsulant material into a cavity including the light emitting device. The first quantity of encapsulant material in the cavity is treated to form a hardened upper surface thereof having a shape. A luminescent conversion element is provided on the upper surface of the treated first quantity of encapsulant material. The luminescent conversion element includes a wavelength conversion material and has a thickness at a middle region of the cavity greater than proximate a sidewall of the cavity.
    Type: Application
    Filed: October 13, 2011
    Publication date: February 16, 2012
    Inventors: Michael Leung, Thomas G. Coleman, Maryanne Becerra
  • Patent number: 8039859
    Abstract: Methods of packaging a semiconductor light emitting device include dispensing a first quantity of encapsulant material into a cavity including the light emitting device. The first quantity of encapsulant material in the cavity is treated to form a hardened upper surface thereof having a shape. A luminescent conversion element is provided on the upper surface of the treated first quantity of encapsulant material. The luminescent conversion element includes a wavelength conversion material and has a thickness at a middle region of the cavity greater than proximate a sidewall of the cavity.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: October 18, 2011
    Assignee: Cree, Inc.
    Inventors: Michael Leung, Thomas G. Coleman, Maryanne Becerra
  • Publication number: 20110006330
    Abstract: Methods of packaging a semiconductor light emitting device include dispensing a first quantity of encapsulant material into a cavity including the light emitting device. The first quantity of encapsulant material in the cavity is treated to form a hardened upper surface thereof having a shape. A luminescent conversion element is provided on the upper surface of the treated first quantity of encapsulant material. The luminescent conversion element includes a wavelength conversion material and has a thickness at a middle region of the cavity greater than proximate a sidewall of the cavity.
    Type: Application
    Filed: September 20, 2010
    Publication date: January 13, 2011
    Inventors: Michael Leung, Thomas G. Coleman, Maryanne Becerra
  • Patent number: 7804147
    Abstract: A method for fabricating a light emitting diode (LED) package comprising providing an LED chip and covering at least part of the LED chip with a liquid encapsulant having a radius of curvature. An optical element is provided having a bottom surface with at least a portion having a radius of curvature larger than the liquid encapsulant. The larger radius of curvature portion of the optical element is brought into contact with the liquid encapsulant. The optical element is then moved closer to the LED chip, growing the contact area between said optical element and said liquid encapsulant. The liquid encapsulant is then cured. A light emitting diode comprising a substrate with an LED chip mounted to it. A meniscus ring is on the substrate around the LED chip with the meniscus ring having a meniscus holding feature.
    Type: Grant
    Filed: July 31, 2006
    Date of Patent: September 28, 2010
    Assignee: Cree, Inc.
    Inventors: Eric Tarsa, Thomas C. Yuan, Maryanne Becerra, Praveen Yadev
  • Patent number: 7799586
    Abstract: Methods of packaging a semiconductor light emitting device include dispensing a first quantity of encapsulant material into a cavity including the light emitting device. The first quantity of encapsulant material in the cavity is treated to form a hardened upper surface thereof having a selected shape. A luminescent conversion element is provided on the upper surface of the treated first quantity of encapsulant material. The luminescent conversion element includes a wavelength conversion material and has a thickness at a middle region of the cavity greater than proximate a sidewall of the cavity.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: September 21, 2010
    Assignee: Cree, Inc.
    Inventors: Michael Leung, Thomas G. Coleman, Maryanne Becerra
  • Publication number: 20090224277
    Abstract: Methods of packaging a semiconductor light emitting device include dispensing a first quantity of encapsulant material into a cavity including the light emitting device. The first quantity of encapsulant material in the cavity is treated to form a hardened upper surface thereof having a selected shape. A luminescent conversion element is provided on the upper surface of the treated first quantity of encapsulant material. The luminescent conversion element includes a wavelength conversion material and has a thickness at a middle region of the cavity greater than proximate a sidewall of the cavity.
    Type: Application
    Filed: March 5, 2009
    Publication date: September 10, 2009
    Inventors: Michael Leung, Thomas G. Coleman, Maryanne Becerra
  • Patent number: 7517728
    Abstract: Methods of packaging a semiconductor light emitting device include dispensing a first quantity of encapsulant material into a cavity including the light emitting device. The first quantity of encapsulant material in the cavity is treated to form a hardened upper surface thereof having a selected shape. A luminescent conversion element is provided on the upper surface of the treated first quantity of encapsulant material. The luminescent conversion element includes a wavelength conversion material and has a thickness at a middle region of the cavity greater than proximate a sidewall of the cavity.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: April 14, 2009
    Assignee: Cree, Inc.
    Inventors: Michael Leung, Thomas G. Coleman, Maryanne Becerra
  • Publication number: 20090014736
    Abstract: Methods for fabricating a semiconductor devices, and in particular light emitting diodes (LEDS) comprising providing a plurality of semiconductor devices on a substrate and forming a contact on at least some of the semiconductor devices. A containment structure is formed on at least some of the semiconductor devices having a contact with each containment structure defining a deposition area excluding the contact. A coating material is deposited then within the deposition area, with the coating material not covering the contact. A light emitting diode (LED) chip wafer comprising a plurality of LEDs on a substrate wafer with at least some of the LEDs having a contact. A plurality of containment structures are included, each of which is associated with a respective one of the plurality of LEDs. Each of the containment structures at least partially on its respective one of the LEDs and defining a deposition area on its respective one of the LEDs. The deposition area excludes the contact.
    Type: Application
    Filed: July 11, 2007
    Publication date: January 15, 2009
    Inventors: James Ibbetson, Kristi Wong, Maryanne Becerra
  • Publication number: 20080023711
    Abstract: A light emitting diode (LED) package comprising a substrate with an LED chip mounted to the substrate and in electrical contact with it. An inner material covers the LED chip, and a lens covers the inner material with the lens material being harder than the inner material. An adhesive is arranged between the substrate and the lens to hold the lens to the substrate and to compensate for different coefficients of thermal expansion (CTE) between the lens and the remainder of the package. A method for forming an LED package comprises providing a substrate with a first meniscus ring on a surface of the substrate. An LED chip is mounted to the substrate, within the meniscus ring. An inner material is deposited over the LED chip, and a lens material in liquid form is deposited over the inner material. The lens material held in a hemispheric shape by the first meniscus feature and the lens material is cured making it harder than the inner material.
    Type: Application
    Filed: July 31, 2006
    Publication date: January 31, 2008
    Inventors: Eric Tarsa, Michael Leung, Maryanne Becerra, Bernd Keller, James Ibbetson
  • Publication number: 20080026498
    Abstract: A method for fabricating a light emitting diode (LED) package comprising providing an LED chip and covering at least part of the LED chip with a liquid encapsulant having a radius of curvature. An optical element is provided having a bottom surface with at least a portion having a radius of curvature larger than the liquid encapsulant. The larger radius of curvature portion of the optical element is brought into contact with the liquid encapsulant. The optical element is then moved closer to the LED chip, growing the contact area between said optical element and said liquid encapsulant. The liquid encapsulant is then cured. A light emitting diode comprising a substrate with an LED chip mounted to it. A meniscus ring is on the substrate around the LED chip with the meniscus ring having a meniscus holding feature.
    Type: Application
    Filed: July 31, 2006
    Publication date: January 31, 2008
    Inventors: Eric Tarsa, Thomas C. Yuan, Maryanne Becerra, Praveen Yadev
  • Publication number: 20070228387
    Abstract: An emitter package comprising a light emitting diode (LED) mounted to the surface of a submount with the surface having a first meniscus forming feature around the LED. A matrix encapsulant is included on the surface and covering the LED. The outer edge of the matrix encapsulant adjacent the surface is defined by the meniscus forming feature and the encapsulant forms a substantially dome-shaped covering over said LED. A method for manufacturing an LED package by providing a body with a surface having a first meniscus holding feature. An LED is mounted to the surface with the meniscus holding feature around the LED. A liquid matrix encapsulant is introduced over the LED and the surface, the first meniscus holding feature holding the liquid matrix encapsulant in a dome-shape over the LED. The matrix encapsulant is then cured.
    Type: Application
    Filed: April 4, 2006
    Publication date: October 4, 2007
    Inventors: Gerald Negley, Michael Leung, Maryanne Becerra, Eric Tarsa, Peter Andrews
  • Publication number: 20050221519
    Abstract: Methods of packaging a semiconductor light emitting device include dispensing a first quantity of encapsulant material into a cavity including the light emitting device. The first quantity of encapsulant material in the cavity is treated to form a hardened upper surface thereof having a selected shape. A luminescent conversion element is provided on the upper surface of the treated first quantity of encapsulant material. The luminescent conversion element includes a wavelength conversion material and has a thickness at a middle region of the cavity greater than proximate a sidewall of the cavity.
    Type: Application
    Filed: February 10, 2005
    Publication date: October 6, 2005
    Inventors: Michael Leung, Thomas Coleman, Maryanne Becerra