Patents by Inventor Gregory Spencer

Gregory Spencer 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).

  • Publication number: 20070218654
    Abstract: A semiconductor process and apparatus provide a planarized hybrid substrate (16) by selectively depositing an epitaxial silicon layer (70) to fill a trench (96), and then blanket depositing silicon to cover the entire wafer with near uniform thickness of crystalline silicon (102) over the epi silicon layer (70) and polycrystalline silicon (101, 103) over the nitride mask layer (95). The polysilicon material (101, 103) added by the two-step process increases the polish rate of subsequent CMP polishing to provide a more uniform polish surface (100) over the entire wafer surface, regardless of variations in structure widths and device densities. By forming first gate electrodes (151) over a first SOI layer (90) using deposited (100) silicon and forming second gate electrodes (161) over an epitaxially grown (110) silicon layer (70), a high performance CMOS device is obtained which includes high-k metal PMOS gate electrodes (161) having improved hole mobility.
    Type: Application
    Filed: March 14, 2006
    Publication date: September 20, 2007
    Inventors: Gregory Spencer, Peter Beckage, Mariam Sadaka
  • Publication number: 20070218659
    Abstract: A semiconductor process and apparatus provide a planarized hybrid substrate (225) having a more uniform polish surface (300) by thickening an SOI semiconductor layer (210) in relation to a previously or subsequently formed epitaxial silicon layer (220) with a selective silicon deposition process that covers the SOI semiconductor layer (210) with a crystalline semiconductor layer (216). By forming first gate electrodes (151) over a first SOI substrate (90) using deposited (100) silicon and forming second gate electrodes (161) over an epitaxially grown (110) silicon substrate (70), a high performance CMOS device is obtained which includes high-k metal PMOS gate electrodes (161) having improved hole mobility.
    Type: Application
    Filed: March 14, 2006
    Publication date: September 20, 2007
    Inventors: Gregory Spencer, Peter Beckage, Mariam Sadaka, Veer Dhandapani
  • Publication number: 20070049006
    Abstract: A semiconductor manufacturing process for integrating a low-k dielectric layer in a fabrication process includes depositing a low-k dielectric layer (12) over a semiconductor structure (10) and planarizing the dielectric layer (12) with a CMP process to form a planarized low-k dielectric layer (20). By depositing a protective cap layer (30) to a substantially uniform thickness over the planarized dielectric layer (20) before etching a contact hole (40), the planarized dielectric layer (20) is protected from damage from the contact hole formation processes (e.g., contact photolithography, etch and/or ash). The contact hole (40) is then filled with a metal (50), and any excess metal is removed with a CMP process to form the contact plugs (60), where the CMP process is also used to thin the protective cap layer (62, 64) or remove it entirely.
    Type: Application
    Filed: August 31, 2005
    Publication date: March 1, 2007
    Inventors: Gregory Spencer, Paul Grudowski
  • Publication number: 20050262857
    Abstract: An apparatus for checking conditioning mode of a heat pump system includes: (a) a temperature sensing device coupled with the heat pump system at a sensing locus; (b) a comparing device coupled with the temperature sensing device and configured for comparing a first temperature sensed by the temperature sensing device at a first time with a second temperature sensed by the temperature sensing device at a second time to determine an extant conditioning mode; the extant conditioning mode being a first conditioning mode when the second temperature is greater than the first temperature; the extant conditioning mode being a second conditioning mode when the second temperature is less than the first temperature.
    Type: Application
    Filed: May 25, 2004
    Publication date: December 1, 2005
    Inventors: Peter Hrejsa, Floyd Jeffrey Mangum, Mark Olsen, Joe Powell, Gregory Spencer, John Tran, Thomas Wolowicz
  • Publication number: 20050130405
    Abstract: A backend semiconductor fabrication process includes forming an interlevel dielectric (ILD) overlying a wafer substrate by forming a low K dielectric (K<3.0) overlying the substrate of the wafer, forming an organic silicon-oxide glue layer overlying the low K dielectric, and forming a CMP stop layer dielectric overlying the glue layer dielectric. A void is then formed in the ILD, a conductive material is deposited to fill the void, and a polish process removes the excess conductive material. Forming the glue layer dielectric and the CMP stop layer dielectric is achieved by forming a CVD plasma using an organic precursor and an oxygen precursor and maintaining the plasma through the formation of the glue layer dielectric and the stop layer. The flow rate of the organic precursor is reduced relative to the oxygen precursor flow rate to form a CMP stop layer that is substantially free of carbon.
    Type: Application
    Filed: December 16, 2003
    Publication date: June 16, 2005
    Inventors: Gregory Spencer, Michael Turner
  • Publication number: 20050059245
    Abstract: A backend semiconductor fabrication process includes forming an interlevel dielectric (ILD) overlying a wafer substrate by forming a low K dielectric (K<3.0) overlying the substrate of the wafer, forming an organic silicon-oxide glue layer overlying the low K dielectric, and forming a CMP stop layer dielectric overlying the glue layer dielectric. A void is then formed in the ILD, a conductive material is deposited to fill the void, and a polish process removes the excess conductive material. Forming the glue layer dielectric and the CMP stop layer dielectric is achieved by forming a CVD plasma using an organic precursor and an oxygen precursor and maintaining the plasma through the formation of the glue layer dielectric and the stop layer. The flow rate of the organic precursor is reduced relative to the oxygen precursor flow rate to form a CMP stop layer that is substantially free of carbon.
    Type: Application
    Filed: September 11, 2003
    Publication date: March 17, 2005
    Inventors: Gregory Spencer, Kurt Junker, Jason Vires