Patents by Inventor Lyndee L. Hilt

Lyndee L. Hilt 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: 7211852
    Abstract: High quality epitaxial layers of GaN can be grown overlying large silicon wafers (200) by forming an amorphous layer (210) on the substrate. The amorphous layer dissipates strain and permits the growth of a high quality GaN layer (208). Any lattice mismatch between the GaN layer and the underlying substrate is taken care of by the amorphous layer.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: May 1, 2007
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Jamal Ramdani, Lyndee L. Hilt
  • Patent number: 7067856
    Abstract: High quality epitaxial layers of compound semiconductor materials can be grown overlying large silicon wafers by first growing an accommodating buffer layer on a silicon wafer. The accommodating buffer layer is a layer of monocrystalline oxide spaced apart from the silicon wafer by an amorphous interface layer of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. The accommodating buffer layer is lattice matched to both the underlying silicon wafer and the overlying monocrystalline compound semiconductor layer. Any lattice mismatch between the accommodating buffer layer and the underlying silicon substrate is taken care of by the amorphous interface layer.
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: June 27, 2006
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Jamal Ramdani, Ravindranath Droopad, Lyndee L. Hilt, Kurt Williamson Eisenbeiser
  • Publication number: 20040232525
    Abstract: High quality epitaxial layers of compound semiconductor materials can be grown overlying large silicon wafers by first growing an accommodating buffer layer on a silicon wafer. The accommodating buffer layer is a layer of monocrystalline oxide spaced apart from the silicon wafer by an amorphous interface layer of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. The accommodating buffer layer is lattice matched to both the underlying silicon wafer and the overlying monocrystalline compound semiconductor layer. Any lattice mismatch between the accommodating buffer layer and the underlying silicon substrate is taken care of by the amorphous interface layer.
    Type: Application
    Filed: June 29, 2004
    Publication date: November 25, 2004
    Applicant: MOTOROLA, INC.
    Inventors: Jamal Ramdani, Ravindranath Droopad, Lyndee L. Hilt, Kurt William Eisenbeiser
  • Publication number: 20040149203
    Abstract: High quality epitaxial layers of compound semiconductor materials can be grown overlying large silicon wafers by first growing an accommodating buffer layer on a silicon wafer. The accommodating buffer layer is a layer of monocrystalline oxide spaced apart from the silicon wafer by an amorphous interface layer of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. The accommodating buffer layer is lattice matched to both the underlying silicon wafer and the overlying monocrystalline compound semiconductor layer. Any lattice mismatch between the accommodating buffer layer and the underlying silicon substrate is taken care of by the amorphous interface layer.
    Type: Application
    Filed: February 2, 2004
    Publication date: August 5, 2004
    Applicant: MOTOROLA, INC.
    Inventors: Jamal Ramdani, Ravindranath Droopad, Lyndee L. Hilt, Kurt William Eisenbeiser
  • Publication number: 20040149202
    Abstract: High quality epitaxial layers of compound semiconductor materials can be grown overlying large silicon wafers by first growing an accommodating buffer layer on a silicon wafer. The accommodating buffer layer is a layer of monocrystalline oxide spaced apart from the silicon wafer by an amorphous interface layer of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. The accommodating buffer layer is lattice matched to both the underlying silicon wafer and the overlying monocrystalline compound semiconductor layer. Any lattice mismatch between the accommodating buffer layer and the underlying silicon substrate is taken care of by the amorphous interface layer.
    Type: Application
    Filed: February 2, 2004
    Publication date: August 5, 2004
    Applicant: MOTOROLA, INC.
    Inventors: Jamal Ramdani, Ravindranath Droopad, Lyndee L. Hilt, Kurt William Eisenbeiser
  • Publication number: 20040150076
    Abstract: High quality epitaxial layers of compound semiconductor materials can be grown overlying large silicon wafers by first growing an accommodating buffer layer on a silicon wafer. The accommodating buffer layer is a layer of monocrystalline oxide spaced apart from the silicon wafer by an amorphous interface layer of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. The accommodating buffer layer is lattice matched to both the underlying silicon wafer and the overlying monocrystalline compound semiconductor layer. Any lattice mismatch between the accommodating buffer layer and the underlying silicon substrate is taken care of by the amorphous interface layer.
    Type: Application
    Filed: February 2, 2004
    Publication date: August 5, 2004
    Applicant: MOTOROLA, INC.
    Inventors: Jamal Ramdani, Ravindranath Droopad, Lyndee L. Hilt, Kurt William Einsebeiser
  • Publication number: 20040150003
    Abstract: High quality epitaxial layers of compound semiconductor materials can be grown overlying large silicon wafers by first growing an accommodating buffer layer on a silicon wafer. The accommodating buffer layer is a layer of monocrystalline oxide spaced apart from the silicon wafer by an amorphous interface layer of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. The accommodating buffer layer is lattice matched to both the underlying silicon wafer and the overlying monocrystalline compound semiconductor layer. Any lattice mismatch between the accommodating buffer layer and the underlying silicon substrate is taken care of by the amorphous interface layer.
    Type: Application
    Filed: February 2, 2004
    Publication date: August 5, 2004
    Applicant: MOTOROLA, INC.
    Inventors: Jamal Ramdani, Ravindranath Droopad, Lyndee L. Hilt, Kurt William Einsebeiser
  • Patent number: 6583034
    Abstract: High quality epitaxial layers of monocrystalline materials can be grown overlying monocrystalline substrates such as large silicon wafers by forming a compliant substrate for growing the monocrystalline layers. One way to achieve the formation of a compliant substrate includes first growing an accommodating buffer layer on a silicon wafer. The accommodating buffer layer is a layer of monocrystalline oxide spaced apart from the silicon wafer by an amorphous interface layer of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. The accommodating buffer layer is lattice matched to both the underlying silicon wafer and the overlying monocrystalline material layer.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: June 24, 2003
    Assignee: Motorola, Inc.
    Inventors: Jamal Ramdani, Lyndee L. Hilt
  • Publication number: 20030019423
    Abstract: High quality epitaxial layers of monocrystalline materials can be grown overlying monocrystalline substrates such as large silicon wafers or compound semiconductor wafers by forming a compliant substrate for growing the monocrystalline layers. In particular, a compliant large area GaN substrate can be fabricated for forming semiconductor structures and devices. An accommodating buffer layer comprises a layer of monocrystalline oxide spaced apart from a silicon wafer by an amorphous interface layer of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. The accommodating buffer layer is lattice matched to both the underlying silicon wafer and the overlying monocrystalline material layer. Any lattice mismatch between the accommodating buffer layer and the underlying silicon substrate is taken care of by the amorphous interface layer.
    Type: Application
    Filed: July 25, 2001
    Publication date: January 30, 2003
    Applicant: MOTOROLA, INC.
    Inventors: Jamal Ramdani, Lyndee L. Hilt
  • Publication number: 20030017661
    Abstract: Semiconductor structures are provided with high quality epitaxial layers of monocrystalline materials grown over monocrystalline substrates such as large silicon wafers utilizing a compliant substrate. One way to achieve the formation of a compliant substrate includes first growing an accommodating buffer layer on a silicon wafer. The accommodating buffer layer is lattice matched to both the underlying silicon wafer and an overlying monocrystalline material layer. With laser assisted fabrication, a laser energy source is used to preclean the accommodating buffer layer, to excite the accommodating buffer layer to higher energy to promote two-dimensional growth, and to amorphize the accommodating buffer layer, without requiring transport of the semiconductor structure from one environment to another. When chemical vapor deposition is utilized, the laser radiation source can also be employed to crack volatile chemical precursors and to enable selective deposition.
    Type: Application
    Filed: July 23, 2001
    Publication date: January 23, 2003
    Applicant: MOTOROLA, INC.
    Inventors: Ravindranath Droopad, Albert A. Talin, Barbara F. Barenburg, Lyndee L. Hilt
  • Publication number: 20030017624
    Abstract: High quality epitaxial layers of monocrystalline materials can be grown overlying monocrystalline substrates such as large silicon wafers by forming a compliant substrate for growing the monocrystalline layers. An accommodating buffer layer comprises a layer of monocrystalline oxide spaced apart from a silicon wafer by an amorphous interface layer of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. The accommodating buffer layer is lattice matched to both the underlying silicon wafer and the overlying monocrystalline material layer. Any lattice mismatch between the accommodating buffer layer and the underlying silicon substrate is taken care of by the amorphous interface layer. In addition, formation of a compliant substrate may include utilizing a controlled passivation layer during processing.
    Type: Application
    Filed: July 23, 2001
    Publication date: January 23, 2003
    Applicant: MOTOROLA, INC.
    Inventors: Joyce Yamamoto, Lyndee L. Hilt
  • Publication number: 20030017720
    Abstract: High quality epitaxial layers of monocrystalline materials can be grown overlying monocrystalline substrates such as large silicon wafers by forming a compliant substrate for growing the monocrystalline layers. An accommodating buffer layer comprises a layer of monocrystalline oxide spaced apart from a silicon wafer by an amorphous interface layer of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. The accommodating buffer layer has lattice registry to both the underlying silicon wafer and the overlying monocrystalline material layer. Formation of a compliant substrate preferably includes utilizing enhanced epitaxy of a surfactant template layer. The surfactant template layer may be formed by depositing an organometallic compound on the accommodating buffer layer using atomic layer epitaxy. In certain preferred embodiments, the organometallic compound is an aluminum-containing compound.
    Type: Application
    Filed: July 20, 2001
    Publication date: January 23, 2003
    Applicant: MOTOROLA, INC.
    Inventors: Jay A. Curless, Lyndee L. Hilt
  • Publication number: 20030017626
    Abstract: High quality epitaxial layers of monocrystalline materials can be grown overlying monocrystalline substrates such as large silicon wafers by forming a compliant substrate for growing the monocrystalline layers. An accommodating buffer layer comprises a layer of monocrystalline oxide spaced apart from a silicon wafer by an amorphous interface layer of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. The accommodating buffer layer is lattice matched to both the underlying silicon wafer and the overlying monocrystalline material layer. Any lattice mismatch between the accommodating buffer layer and the underlying silicon substrate is taken care of by the amorphous interface layer. In addition, formation of a compliant substrate may include utilizing surfactant enhanced epitaxy, epitaxial growth of single crystal silicon onto single crystal oxide, and epitaxial growth of Zintl phase materials.
    Type: Application
    Filed: July 23, 2001
    Publication date: January 23, 2003
    Applicant: MOTOROLA INC.
    Inventors: Lyndee L. Hilt, Jay A. Curless, Paige M. Holm
  • Publication number: 20030015711
    Abstract: High quality epitaxial layers of monocrystalline materials can be grown overlying monocrystalline substrates such as large silicon wafers by forming a compliant substrate for growing the monocrystalline layers. An accommodating buffer layer comprises a layer of monocrystalline oxide spaced apart from a silicon wafer by an amorphous interface layer of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. The accommodating buffer layer is lattice matched to both the underlying silicon wafer and the overlying monocrystalline material layer. Any lattice mismatch between the accommodating buffer layer and the underlying silicon substrate is taken care of by the amorphous interface layer. In addition, formation of a compliant substrate includes utilizing an intermetallic layer of an intermetallic compound material.
    Type: Application
    Filed: July 20, 2001
    Publication date: January 23, 2003
    Applicant: Motorola, Inc.
    Inventors: Albert A. Talin, Lyndee L. Hilt, Alexander A. Demkov
  • Publication number: 20030015731
    Abstract: Process for fabricating a semiconductor structure (34), and the resulting products, having reduced crystal defects and/or contamination in a monocrystalline compound semiconductor layer (26) that is compliantly attached to a monocrystalline semiconductor substrate (22) via an accommodating buffer layer (36), a capping/template layer (30), and a thin monocrystalline compound semiconductor seed film (38) comprised of a compound semiconductor, in that order from furthest to closest to layer (26).
    Type: Application
    Filed: July 23, 2001
    Publication date: January 23, 2003
    Applicant: Motorola, Inc.
    Inventors: Jay A. Curless, Lyndee L. Hilt, Albert A. Talin
  • Publication number: 20030013223
    Abstract: High quality epitaxial layers of monocrystalline III-V arsenide nitride materials can be grown overlying monocrystalline substrates such as large silicon wafers by forming a compliant substrate for growing the monocrystalline layers. One way to achieve the formation of a compliant substrate includes first growing an accommodating buffer layer on a silicon wafer. The accommodating buffer layer is a layer of monocrystalline oxide spaced apart from the silicon wafer by an amorphous interface layer of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. The accommodating buffer layer is lattice matched to both the underlying silicon wafer and the overlying monocrystalline III-V arsenide nitride material layer. Any lattice mismatch between the accommodating buffer layer and the underlying silicon substrate is taken care of by the amorphous interface layer.
    Type: Application
    Filed: July 16, 2001
    Publication date: January 16, 2003
    Applicant: MOTOROLA, INC.
    Inventors: Jamal Ramdani, Lyndee L. Hilt
  • Publication number: 20030008527
    Abstract: High quality epitaxial layers of monocrystalline materials can be grown overlying monocrystalline substrates such as large silicon wafers by forming a compliant substrate for growing the monocrystalline layers. An accommodating buffer layer comprises a layer of monocrystalline oxide spaced apart from a silicon wafer by an amorphous interface layer of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. The accommodating buffer layer is lattice matched to both the underlying silicon wafer and the overlying monocrystalline material layer. Any lattice mismatch between the accommodating buffer layer and the underlying silicon substrate is taken care of by the amorphous interface layer. In addition, formation of a compliant substrate may include utilizing laser irradiation in conjunction with molecular beam epitaxy growth techniques.
    Type: Application
    Filed: July 3, 2001
    Publication date: January 9, 2003
    Applicant: MOTOROLA, INC.
    Inventors: Barbara Foley Barenburg, Lyndee L. Hilt
  • Publication number: 20030001207
    Abstract: High quality epitaxial layers of monocrystalline materials can be grown overlying monocrystalline substrates such as large silicon wafers by forming a compliant substrate for growing the monocrystalline layers. One way to achieve the formation of a compliant substrate includes first growing an accommodating buffer layer on a silicon wafer. The accommodating buffer layer is a layer of monocrystalline oxide spaced apart from the silicon wafer by an amorphous interface layer of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. The accommodating buffer layer is lattice matched to both the underlying silicon wafer and the overlying monocrystalline material layer. Any lattice mismatch between the accommodating buffer layer and the underlying silicon substrate is taken care of by the amorphous interface layer.
    Type: Application
    Filed: May 16, 2001
    Publication date: January 2, 2003
    Applicant: Motorola, Inc.
    Inventors: Jamal Ramdani, Alexander A. Demkov, Lyndee L. Hilt
  • Patent number: 6472276
    Abstract: A composite semiconductor including silicon and compound semiconductor, and having a silicate layer for promoting layer-by-layer monocrystalline growth. Silicon may be introduced to react with the monocrystalline oxide layer to form the silicate layer. During the fabrication process, the thickness of the amorphous oxide layer may be increased by suitable methods, such as annealing or oxygen diffusion.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: October 29, 2002
    Assignee: Motorola, Inc.
    Inventors: Lyndee L. Hilt, Ravindranath Droopad
  • Publication number: 20020149023
    Abstract: High quality epitaxial layers of monocrystalline materials can be grown overlying large silicon wafers by first growing an accommodating buffer layer (202) on a silicon substrate (200). The accommodating buffer layer (202) is a layer of monocrystalline material spaced apart from the silicon substrate (200) by an amorphous interface layer (204) of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline accommodating buffer layer. Any lattice mismatch between the accommodating buffer layer and the underlying silicon substrate is taken care of by the amorphous interface layer. Utilizing this technique permits the fabrication of semiconductor structures formed by high quality Group III-V nitride films.
    Type: Application
    Filed: June 5, 2002
    Publication date: October 17, 2002
    Applicant: MOTOROLA, INC.
    Inventors: Lyndee L. Hilt, Jamal Ramdani