Patents by Inventor John Lungo

John Lungo 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).

  • VCSEL having a self-aligned heat sink and method of making
    Patent number: 5654228
    Abstract: A substrate (102) having a surface (103) with a first stack of distributed Bragg reflectors (106), a first cladding region (107), an active region (108), a second cladding region (109), a second stack of distributed Bragg reflectors (110), and a contact region (111) is provided. A mesa (131) with a surface (133) and a trench (136) is formed. A first dielectric layer (122) is formed overlying substrate (102) and covering a portion of trench (136). A second dielectric layer (128) is formed on surface (133) of mesa (131). A seed layer (126) having a pattern is formed, with the pattern of seed layer (126) having an opening on a portion of second dielectric layer (128) of mesa (131). A metal is selectively plated on seed layer (126), thereby generating a layer (204) on seed layer (126) for removal of heat from VCSEL (101).
    Type: Grant
    Filed: March 17, 1995
    Date of Patent: August 5, 1997
    Assignee: Motorola
    Inventors: Chan-Long Shieh, John Lungo, Michael S. Lebby
  • VCSEL with an intergrated heat sink and method of making
    Patent number: 5482891
    Abstract: A substrate (102) having a surface (103) with a first stack of distributed Bragg reflectors (106), a first cladding region (107), an active region (108), a second cladding region (109), a second stack of distributed Bragg reflectors (110), and a contact region (111) is provided. A mesa (131) with a surface (133) and a trench (136) is formed. A first dielectric layer (122) is formed overlying substrate (102) and covering a portion of trench (136). A seed layer (126) having a pattern is formed, with the pattern of seed layer (126) having an opening on a portion of mesa (131). A metal is selectively plated on seed layer (126), thereby generating a layer (304) on seed layer (126) for removal of heat of VCSEL (101).
    Type: Grant
    Filed: March 17, 1995
    Date of Patent: January 9, 1996
    Assignee: Motorola, Inc.
    Inventors: Chan-Long Shieh, John Lungo, Michael S. Lebby
  • Method of making a VCSEL
    Patent number: 5468656
    Abstract: A substrate with a surface, the surface having disposed thereon a first stack of distributed Bragg reflectors, an active area, a second stack of distributed Bragg reflectors, a contact region, and a dielectric layer is provided. A first isolation trench is formed that extends through the dielectric layer, the contact region, and into a portion of the second stack of distributed Bragg reflectors. A dielectric layer is disposed on the substrate. A second isolation trench is formed through the nitride layer, the contact region, the second stack of distributed Bragg reflectors, the active region and a portion of the first stack of distributed Bragg reflectors, wherein the second isolation trench encircles the first isolation trench. A first electrical contact is formed on the second stack of distributed Bragg reflectors and a second electrical contact is formed on the contact region.
    Type: Grant
    Filed: November 29, 1994
    Date of Patent: November 21, 1995
    Assignee: Motorola
    Inventors: Chan-Long Shieh, Michael S. Lebby, John Lungo