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: 8872311Abstract: 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: GrantFiled: February 13, 2004Date of Patent: October 28, 2014Assignee: Agere Systems Inc.Inventors: Nace Rossi, Alvaro Maury
-
Patent number: 8685861Abstract: 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: GrantFiled: August 2, 2006Date of Patent: April 1, 2014Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.Inventors: Chih Ping Yong, Peter Chew, Chuin Boon Yeap, Hoon Lian Yap, Ranbir Singh, Nace Rossi, Jovin Lim
-
Patent number: 8084313Abstract: 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: GrantFiled: July 8, 2010Date of Patent: December 27, 2011Assignee: Agere Systems Inc.Inventors: Arun K. Nanda, Venkat Raghavan, Nace Rossi
-
Patent number: 8022481Abstract: 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: GrantFiled: January 21, 2009Date of Patent: September 20, 2011Assignee: Agere Systems Inc.Inventors: Arun K. Nanda, Nace Rossi, Ranbir Singh
-
Patent number: 7982286Abstract: 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: GrantFiled: June 29, 2006Date of Patent: July 19, 2011Assignee: Agere Systems Inc.Inventors: Nace Rossi, Ranbir Singh
-
Patent number: 7906407Abstract: 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: GrantFiled: October 29, 2007Date of Patent: March 15, 2011Assignee: Agere Systems Inc.Inventors: Nace Rossi, Ranbir Singh, Arun K. Nanda
-
Publication number: 20100273301Abstract: 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: ApplicationFiled: July 8, 2010Publication date: October 28, 2010Applicant: Agere Systems Inc.Inventors: Arun K. Nanda, Venkat Raghavan, Nace Rossi
-
Patent number: 7811944Abstract: 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: GrantFiled: June 27, 2005Date of Patent: October 12, 2010Assignee: Agere Systems Inc.Inventors: Nace Rossi, Alvaro Maury
-
Patent number: 7776678Abstract: 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: GrantFiled: September 11, 2008Date of Patent: August 17, 2010Assignee: Agere Systems Inc.Inventors: Arun K. Nanda, Venkat Raghavan, Nace Rossi
-
Patent number: 7675179Abstract: 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: GrantFiled: April 20, 2007Date of Patent: March 9, 2010Assignee: Agere Systems Inc.Inventors: Ranbir Singh, Sen Sidhartha, Nace Rossi
-
Publication number: 20090139962Abstract: 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: ApplicationFiled: November 29, 2007Publication date: June 4, 2009Inventors: Edward Aiguo Wang, Nace Rossi
-
Publication number: 20090127651Abstract: 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: ApplicationFiled: January 21, 2009Publication date: May 21, 2009Inventors: Arun K. Nanda, Nace Rossi, Ranbir Singh
-
Publication number: 20090108359Abstract: 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: ApplicationFiled: October 31, 2007Publication date: April 30, 2009Applicant: Agere Systems Inc.Inventors: Nace Rossi, Alvaro Maury
-
Patent number: 7514336Abstract: 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: GrantFiled: December 29, 2005Date of Patent: April 7, 2009Assignee: Agere Systems Inc.Inventors: Arun K. Nanda, Nace Rossi, Ranbir Singh
-
Publication number: 20090011553Abstract: 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: ApplicationFiled: September 11, 2008Publication date: January 8, 2009Applicant: Agere Systems Inc.Inventors: Arun K. Nanda, Venkat Raghavan, Nace Rossi
-
Patent number: 7439119Abstract: 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: GrantFiled: February 24, 2006Date of Patent: October 21, 2008Assignee: Agere Systems Inc.Inventors: Arun K. Nanda, Venkat Raghavan, Nace Rossi
-
Publication number: 20080079083Abstract: 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: ApplicationFiled: October 31, 2007Publication date: April 3, 2008Applicant: Agere Systems Inc.Inventors: Nace Rossi, Alvaro Maury
-
Publication number: 20080057672Abstract: 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: ApplicationFiled: October 29, 2007Publication date: March 6, 2008Applicant: Agere Systems Inc.Inventors: Nace Rossi, Ranbir Singh, Arun Nanda
-
Publication number: 20080029853Abstract: 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: ApplicationFiled: August 2, 2006Publication date: February 7, 2008Applicant: CHARTERED SEMICONDUCTOR MANUFACTURING LTD.Inventors: Chih Ping Yong, Peter Chew, Chuin Boon Yeap, Hoon Lian Yap, Ranbir Singh, Nace Rossi, Jovin Lim
-
Publication number: 20080014728Abstract: 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: ApplicationFiled: June 29, 2006Publication date: January 17, 2008Applicant: Agere Systems Inc.Inventors: Nace Rossi, Ranbir Singh