Patents by Inventor Nace Rossi

Nace Rossi 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: 8872311
    Abstract: The present invention provides a semiconductor device, a method of manufacture therefor, and an integrated circuit including the semiconductor device. The semiconductor device, in one particularly advantageous embodiment, includes a multi layer etch stop located over a substrate, wherein the multi layer etch stop has a first insulative layer and a second silicon-rich nitride layer located over the first insulative layer. Located over the multi layer etch stop is a dielectric layer having an opening formed therein that extends through at least a portion of the multi layer etch stop. A conductive plug is typically located within the opening, wherein an insulative spacer is located between the conductive plug and the second silicon-rich nitride layer.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: October 28, 2014
    Assignee: Agere Systems Inc.
    Inventors: Nace Rossi, Alvaro Maury
  • Patent number: 8685861
    Abstract: A integrated circuit system including providing an integrated circuit device, forming an undoped insulating layer over the integrated circuit device, forming a thin insulating layer over the undoped insulating layer, forming a doped insulating layer over the thin insulating layer, and forming a contact in the undoped insulating layer, thin insulating layer and the doped insulating layer.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: April 1, 2014
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Chih Ping Yong, Peter Chew, Chuin Boon Yeap, Hoon Lian Yap, Ranbir Singh, Nace Rossi, Jovin Lim
  • Patent number: 8084313
    Abstract: A method for forming BiCMOS integrated circuits and structures formed according to the method. After forming doped wells and gate stacks for the CMOS devices and collector and base regions for the bipolar junction transistor, an emitter layer is formed within an emitter window. A dielectric material layer is formed over the emitter layer and remains in place during etching of the emitter layer and removal of the etch mask. The dielectric material layer further remains in place during source/drain implant doping and activation of the implanted source/drain dopants. The dielectric material layer functions as a thermal barrier, to limit out-diffusion of the emitter dopants during the activation step.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: December 27, 2011
    Assignee: Agere Systems Inc.
    Inventors: Arun K. Nanda, Venkat Raghavan, Nace Rossi
  • Patent number: 8022481
    Abstract: In a semiconductor substrate, a shallow trench isolation structure having a dielectric material disposed in voids of a trench-fill material and a method for forming the shallow trench isolation structure. The voids may be formed during a wet clean process after the dielectric material is formed in the trench. A conformal silicon nitride layer is formed over the substrate and in the voids. After removal of the silicon nitride layer, the voids are at least partially filled by the silicon nitride material.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: September 20, 2011
    Assignee: Agere Systems Inc.
    Inventors: Arun K. Nanda, Nace Rossi, Ranbir Singh
  • Patent number: 7982286
    Abstract: The invention, in one aspect, provides a method of manufacturing a semiconductor device. This method includes providing a semiconductor substrate and depositing a metal layer over the semiconductor substrate that has an overall thickness of about 1 micron or greater. The metal layer is formed by depositing a first portion of the thickness of the metal layer, which has a compressive or tensile stress associated therewith over the semiconductor substrate. A stress-compensating layer is deposited over the first portion, such that the stress-compensating layer imparts a stress to the first portion that is opposite to the compressive or tensile stress associated with the first portion. A second portion of the thickness of the metal layer is then deposited over the stress-compensating layer.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: July 19, 2011
    Assignee: Agere Systems Inc.
    Inventors: Nace Rossi, Ranbir Singh
  • Patent number: 7906407
    Abstract: A shallow trench isolation structure having a negative taper angle and a method for forming same. A silicon nitride layer formed over a semiconductor substrate is etched according to a plasma etch process to form a first opening therein having sidewalls that present a negative taper angle. The substrate is etched to form a trench therein underlying the first opening. Silicon dioxide fills both the opening and the trench to form the shallow trench isolation structure, with the silicon dioxide in the opening exhibiting a negative taper angle to avoid formation of conductive stringers during subsequent process steps.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: March 15, 2011
    Assignee: Agere Systems Inc.
    Inventors: Nace Rossi, Ranbir Singh, Arun K. Nanda
  • Publication number: 20100273301
    Abstract: A method for forming BiCMOS integrated circuits and structures formed according to the method. After forming doped wells and gate stacks for the CMOS devices and collector and base regions for the bipolar junction transistor, an emitter layer is formed within an emitter window. A dielectric material layer is formed over the emitter layer and remains in place during etching of the emitter layer and removal of the etch mask. The dielectric material layer further remains in place during source/drain implant doping and activation of the implanted source/drain dopants. The dielectric material layer functions as a thermal barrier, to limit out-diffusion of the emitter dopants during the activation step.
    Type: Application
    Filed: July 8, 2010
    Publication date: October 28, 2010
    Applicant: Agere Systems Inc.
    Inventors: Arun K. Nanda, Venkat Raghavan, Nace Rossi
  • Patent number: 7811944
    Abstract: The present invention provides a semiconductor device, a method of manufacture therefor, and an integrated circuit including the aforementioned semiconductor device. The semiconductor device, in accordance with the principles of the present invention, may include a substrate, and a graded capping layer located over the substrate, wherein the graded capping layer includes at least two different layers, wherein first and second layers of the at least two different layers have different stress values.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: October 12, 2010
    Assignee: Agere Systems Inc.
    Inventors: Nace Rossi, Alvaro Maury
  • Patent number: 7776678
    Abstract: A method for forming BiCMOS integrated circuits and structures formed according to the method. After forming doped wells and gate stacks for the CMOS devices and collector and base regions for the bipolar junction transistor, an emitter layer is formed within an emitter window. A dielectric material layer is formed over the emitter layer and remains in place during etching of the emitter layer and removal of the etch mask. The dielectric material layer further remains in place during source/drain implant doping and activation of the implanted source/drain dopants. The dielectric material layer functions as a thermal barrier, to limit out-diffusion of the emitter dopants during the activation step.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: August 17, 2010
    Assignee: Agere Systems Inc.
    Inventors: Arun K. Nanda, Venkat Raghavan, Nace Rossi
  • Patent number: 7675179
    Abstract: The present invention provides an interconnect that can be employed in an integrated circuit. The interconnect includes a metal line located over a substrate, a dielectric layer located over the metal line, and an interconnect located in the dielectric layer, including a landed portion located over the metal line and an unlanded portion located along at least a portion of a lateral edge of the metal line. The unlanded portion is at least partially filled with a polymer, and the landed portion is substantially filled with a conductive material. A method for manufacturing the interconnect is also provided.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: March 9, 2010
    Assignee: Agere Systems Inc.
    Inventors: Ranbir Singh, Sen Sidhartha, Nace Rossi
  • Publication number: 20090139962
    Abstract: A method and system are provided for controlling the accumulation of electrical charge during a semiconductor plasma etching process performed in a plasma etching chamber. The bias voltage supplied to the plasma etching chamber is modulated by a bias power modulation circuit to control the accumulation of electrical charge and to force the accumulated electrical charge to be periodically discharged at a controlled rate of discharge that prevents the wafer from being damaged.
    Type: Application
    Filed: November 29, 2007
    Publication date: June 4, 2009
    Inventors: Edward Aiguo Wang, Nace Rossi
  • Publication number: 20090127651
    Abstract: In a semiconductor substrate, a shallow trench isolation structure having a dielectric material disposed in voids of a trench-fill material and a method for forming the shallow trench isolation structure. The voids may be formed during a wet clean process after the dielectric material is formed in the trench. A conformal silicon nitride layer is formed over the substrate and in the voids. After removal of the silicon nitride layer, the voids are at least partially filled by the silicon nitride material.
    Type: Application
    Filed: January 21, 2009
    Publication date: May 21, 2009
    Inventors: Arun K. Nanda, Nace Rossi, Ranbir Singh
  • Publication number: 20090108359
    Abstract: The present invention provides a semiconductor device, and an integrated circuit including the semiconductor device. The semiconductor device, in one embodiment, includes: (1) a gate structure located over a substrate, the gate structuring including a gate dielectric and gate electrode; (2) source/drain regions located within the substrate proximate the gate structure, (3) a multi layer etch stop located over the substrate, wherein the etch stop has a first insulative layer and a second silicon-rich nitride layer located over the first insulative layer, (4) a dielectric layer located over the etch stop, the dielectric layer having an opening formed therein that extends through at least a portion of the multi layer etch stop, (5) a conductive plug located within the opening and electrically contacting the gate electrode and one of the source/drain regions, and (6) an insulative spacer located between the conductive plug and the second silicon-rich nitride layer.
    Type: Application
    Filed: October 31, 2007
    Publication date: April 30, 2009
    Applicant: Agere Systems Inc.
    Inventors: Nace Rossi, Alvaro Maury
  • Patent number: 7514336
    Abstract: In a semiconductor substrate, a shallow trench isolation structure having a dielectric material disposed in voids of a trench-fill material and a method for forming the shallow trench isolation structure. The voids may be formed during a wet clean process after the dielectric material is formed in the trench. A conformal silicon nitride layer is formed over the substrate and in the voids. After removal of the silicon nitride layer, the voids are at least partially filled by the silicon nitride material.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: April 7, 2009
    Assignee: Agere Systems Inc.
    Inventors: Arun K. Nanda, Nace Rossi, Ranbir Singh
  • Publication number: 20090011553
    Abstract: A method for forming BiCMOS integrated circuits and structures formed according to the method. After forming doped wells and gate stacks for the CMOS devices and collector and base regions for the bipolar junction transistor, an emitter layer is formed within an emitter window. A dielectric material layer is formed over the emitter layer and remains in place during etching of the emitter layer and removal of the etch mask. The dielectric material layer further remains in place during source/drain implant doping and activation of the implanted source/drain dopants. The dielectric material layer functions as a thermal barrier, to limit out-diffusion of the emitter dopants during the activation step.
    Type: Application
    Filed: September 11, 2008
    Publication date: January 8, 2009
    Applicant: Agere Systems Inc.
    Inventors: Arun K. Nanda, Venkat Raghavan, Nace Rossi
  • Patent number: 7439119
    Abstract: A method for forming BiCMOS integrated circuits and structures formed according to the method. After forming doped wells and gate stacks for the CMOS devices and collector and base regions for the bipolar junction transistor, an emitter layer is formed within an emitter window. A dielectric material layer is formed over the emitter layer and remains in place during etching of the emitter layer and removal of the etch mask. The dielectric material layer further remains in place during source/drain implant doping and activation of the implanted source/drain dopants. The dielectric material layer functions as a thermal barrier, to limit out-diffusion of the emitter dopants during the activation step.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: October 21, 2008
    Assignee: Agere Systems Inc.
    Inventors: Arun K. Nanda, Venkat Raghavan, Nace Rossi
  • Publication number: 20080079083
    Abstract: The present invention provides a semiconductor device, and an integrated circuit including the semiconductor device. The semiconductor device, in one embodiment, includes: (1) a gate structure located over a substrate, the gate structuring including a gate dielectric and gate electrode; (2) source/drain regions located within the substrate proximate the gate structure, (3) a multi layer etch stop located over the substrate, wherein the etch stop has a first insulative layer and a second silicon-rich nitride layer located over the first insulative layer, (4) a dielectric layer located over the etch stop, the dielectric layer having an opening formed therein that extends through at least a portion of the multi layer etch stop, (5) a conductive plug located within the opening and electrically contacting the gate electrode and one of the source/drain regions, and (6) an insulative spacer located between the conductive plug and the second silicon-rich nitride layer.
    Type: Application
    Filed: October 31, 2007
    Publication date: April 3, 2008
    Applicant: Agere Systems Inc.
    Inventors: Nace Rossi, Alvaro Maury
  • Publication number: 20080057672
    Abstract: A shallow trench isolation structure having a negative taper angle and a method for forming same. A silicon nitride layer formed over a semiconductor substrate is etched according to a plasma etch process to form a first opening therein having sidewalls that present a negative taper angle. The substrate is etched to form a trench therein underlying the first opening. Silicon dioxide fills both the opening and the trench to form the shallow trench isolation structure, with the silicon dioxide in the opening exhibiting a negative taper angle to avoid formation of conductive stringers during subsequent process steps.
    Type: Application
    Filed: October 29, 2007
    Publication date: March 6, 2008
    Applicant: Agere Systems Inc.
    Inventors: Nace Rossi, Ranbir Singh, Arun Nanda
  • Publication number: 20080029853
    Abstract: A integrated circuit system including providing an integrated circuit device, forming an undoped insulating layer over the integrated circuit device, forming a thin insulating layer over the undoped insulating layer, forming a doped insulating layer over the thin insulating layer, and forming a contact in the undoped insulating layer, thin insulating layer and the doped insulating layer.
    Type: Application
    Filed: August 2, 2006
    Publication date: February 7, 2008
    Applicant: CHARTERED SEMICONDUCTOR MANUFACTURING LTD.
    Inventors: Chih Ping Yong, Peter Chew, Chuin Boon Yeap, Hoon Lian Yap, Ranbir Singh, Nace Rossi, Jovin Lim
  • Publication number: 20080014728
    Abstract: The invention, in one aspect, provides a method of manufacturing a semiconductor device. This method includes providing a semiconductor substrate and depositing a metal layer over the semiconductor substrate that has an overall thickness of about 1 micron or greater. The metal layer is formed by depositing a first portion of the thickness of the metal layer, which has a compressive or tensile stress associated therewith over the semiconductor substrate. A stress-compensating layer is deposited over the first portion, such that the stress-compensating layer imparts a stress to the first portion that is opposite to the compressive or tensile stress associated with the first portion. A second portion of the thickness of the metal layer is then deposited over the stress-compensating layer.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 17, 2008
    Applicant: Agere Systems Inc.
    Inventors: Nace Rossi, Ranbir Singh