Patents by Inventor David Alvarez

David Alvarez 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: 8315024
    Abstract: Implementations are presented herein that include an electrostatic discharge (ESD) protection circuit. The ESD protection circuit includes a first transistor and a second transistor. The first transistor has a first terminal that is coupled to a first supply line and a bulk that is coupled to a second supply line. The second transistor has a first terminal that is coupled to the second supply line, a bulk that is coupled to the first supply line and a second terminal that is coupled to a second terminal of the first transistor to define a protected node. The ESD protection circuit further includes a current limiting element that has a first terminal that is coupled to the protected node.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: November 20, 2012
    Assignee: Infineon Technologies AG
    Inventors: Christian Russ, Wolfgang Soldner, Gernot Langguth, David Alvarez, Krysztof Domanski
  • Patent number: 8247845
    Abstract: Semiconductor devices, methods of manufacturing thereof, and methods of arranging circuit components of an integrated circuit are disclosed. In one embodiment, a semiconductor device includes an array of a plurality of devices arranged in a plurality of rows. At least one electrostatic discharge (ESD) protection circuit or a portion thereof is disposed in at least one of the plurality of rows of the array of the plurality of devices.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: August 21, 2012
    Assignee: Infineon Technologies AG
    Inventors: Uwe Paul Schroeder, David Alvarez
  • Publication number: 20120176710
    Abstract: In an embodiment, an electrostatic discharge (ESD) circuit for providing protection between a first node and a second node includes a first MOS device having a first source/drain coupled to a first node, and a second source/drain coupled to an intermediate node. The ESD circuit also includes a first capacitor coupled between a gate of the first MOS device and the first node, a first resistor coupled between the gate of the first MOS device the intermediate node, a second MOS device having a first source/drain coupled to the intermediate node, and a second source/drain coupled to the second node, a second capacitor coupled between a gate of the second MOS device and the first node, and a second resistor coupled between the gate of the second MOS device and the second node.
    Type: Application
    Filed: January 10, 2011
    Publication date: July 12, 2012
    Inventors: Krzysztof Domanski, Wolfgang Soldner, Cornelius Christian Russ, David Alvarez, Adrien Ille
  • Publication number: 20120154962
    Abstract: Techniques and architectures corresponding to electrostatic discharge clamping circuits with tracing circuitry are described.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 21, 2012
    Applicant: Infineon Technologies AG
    Inventors: Christian Russ, Wolfgang Soldner, Klaus von Arnim, David Alvarez, Krzysztof Domanski, Gernot Langguth
  • Publication number: 20120154961
    Abstract: Techniques and architectures corresponding to electrostatic discharge blocking circuits are described.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 21, 2012
    Applicant: Infineon Technologies AG
    Inventors: Christian Russ, Wolfgang Soldner, Gernot Langguth, David Alvarez, Krzysztof Domanski, Klaus von Arnim
  • Publication number: 20120109878
    Abstract: The present invention relates to data processing systems and methods to facilitate debugging, development and execution of multidimensional database queries, such as MDX (Multi-Dimensional eXpressions), for a multidimensional database structure on a computer architecture running on a server, such as an OnLine Analytical Processing Server (OLAP). The expression or query can be broken down and executed incrementally and associated with contextual information which can be viewed by an end-user via an understandable user interface. The advantage is the drastic simplification of very complex computations, giving the user a perspective not available till now. This allows users to better understand multidimensional queries, find errors that occur in the execution and correct such errors.
    Type: Application
    Filed: October 27, 2010
    Publication date: May 3, 2012
    Applicant: CRAZY DEVELOPMENT
    Inventors: David Alvarez Debrot, Marc Polizzi
  • Publication number: 20120099229
    Abstract: An embodiment semiconductor device has a first device region disposed on a second device region within an ESD device region disposed within a semiconductor body. Also included is a third device region disposed on the second device region, a fourth device region adjacent to the second device region, a fifth device region disposed within the fourth device region, and a sixth device region adjacent to the fourth device region. The first and fourth regions have a first semiconductor type, and the second, third, fifth and sixth regions have a second conductivity type opposite the first conductivity type. An interface between the fourth device region and the sixth device region forms a diode junction. The first, second, fourth and fifth device regions form a silicon controlled rectifier.
    Type: Application
    Filed: October 25, 2010
    Publication date: April 26, 2012
    Inventors: Krzysztof Domanski, Cornelius Christian Russ, David Alvarez, Wolfgang Soldner
  • Publication number: 20110180875
    Abstract: An ESD protection device includes an MOS transistor with a source region, drain region and gate region. A node designated for ESD protection is electrically coupled to the drain. A diode is coupled between the gate and source, wherein the diode would be reverse biased if the MOS transistor were in the active operating region.
    Type: Application
    Filed: April 8, 2011
    Publication date: July 28, 2011
    Inventors: Cornelius Christian Russ, David Alvarez
  • Patent number: 7985983
    Abstract: A semiconductor device includes an ESD device region disposed within a semiconductor body of a first semiconductor type, an isolation region surrounding the ESD device region, a first doped region of a second conductivity type disposed at a surface of the semiconductor body within the ESD region, and a second doped region of the first conductivity type disposed between the semiconductor body within the ESD region and at least a portion of the first doped region, where the doping concentration of the second doped region is higher than the semiconductor body. A third doped region of the second semiconductor type is disposed on the semiconductor body and a fourth region of the first conductivity type is disposed over the third doped region. A fifth doped region of the second conductivity type is disposed on the semiconductor body. A trigger device and an SCR is formed therefrom.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: July 26, 2011
    Assignee: Infineon Technologies AG
    Inventors: Cornelius Christian Russ, Kai Esmark, David Alvarez, Jens Schneider
  • Publication number: 20110063763
    Abstract: Implementations are presented herein that include an electrostatic discharge (ESD) protection circuit. The ESD protection circuit includes a first transistor and a second transistor. The first transistor has a first terminal that is coupled to a first supply line and a bulk that is coupled to a second supply line. The second transistor has a first terminal that is coupled to the second supply line, a bulk that is coupled to the first supply line and a second terminal that is coupled to a second terminal of the first transistor to define a protected node. The ESD protection circuit further includes a current limiting element that has a first terminal that is coupled to the protected node.
    Type: Application
    Filed: September 16, 2009
    Publication date: March 17, 2011
    Inventors: David ALVAREZ, Krzysztof DOMANSKI, Gernot LANGGUTH, Christian RUSS, Wolfgang SOLDNER
  • Patent number: 7825475
    Abstract: An input/output (I/O) mixed-voltage drive circuit and electrostatic discharge protection device for coupling to an I/O pad. The device includes an NFET device having a gate, a drain, a source and body, the gate adapted for coupling to a pre-drive circuit, the source and the body being coupled to one another and to ground. The device also includes a bipolar junction transistor having a collector, an emitter and a base, the emitter being coupled to the drain of the NFET and the collector being coupled to the I/O pad.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: November 2, 2010
    Assignees: International Business Machines Corporation, Samsung Electronics Co., Ltd., Infineon Technologies AG
    Inventors: Kiran V. Chatty, David Alvarez, Bong Jae Kwon, Christian C. Russ
  • Publication number: 20100208405
    Abstract: A semiconductor device includes an ESD device region disposed within a semiconductor body of a first semiconductor type, an isolation region surrounding the ESD device region, a first doped region of a second conductivity type disposed at a surface of the semiconductor body within the ESD region, and a second doped region of the first conductivity type disposed between the semiconductor body within the ESD region and at least a portion of the first doped region, where the doping concentration of the second doped region is higher than the semiconductor body. A third doped region of the second semiconductor type is disposed on the semiconductor body and a fourth region of the first conductivity type is disposed over the third doped region. A fifth doped region of the second conductivity type is disposed on the semiconductor body. A trigger device and an SCR is formed therefrom.
    Type: Application
    Filed: April 28, 2010
    Publication date: August 19, 2010
    Inventors: Cornelius Christian Russ, Kai Esmark, David Alvarez, Jens Schneider
  • Patent number: 7732834
    Abstract: A semiconductor device includes an ESD device region disposed within a semiconductor body of a first semiconductor type, an isolation region surrounding the ESD device region, a first doped region of a second conductivity type disposed at a surface of the semiconductor body within the ESD region, and a second doped region of the first conductivity type disposed between the semiconductor body within the ESD region and at least a portion of the first doped region, where the doping concentration of the second doped region is higher than the semiconductor body. A third doped region of the second semiconductor type is disposed on the semiconductor body and a fourth region of the first conductivity type is disposed over the third doped region. A fifth doped region of the second conductivity type is disposed on the semiconductor body. A trigger device and an SCR is formed therefrom.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: June 8, 2010
    Assignee: Infineon Technologies AG
    Inventors: Cornelius Christian Russ, Kai Esmark, David Alvarez, Jens Schneider
  • Patent number: 7709896
    Abstract: An ESD protection device includes a source region, a channel region adjacent the source region, and an elongated drain region spaced from the source region by the channel region. The elongated drain region includes an unsilicided portion adjacent the channel and a silicided portion spaced from channel region by the unsilicided portion. A first ESD region is located beneath the silicided portion of the elongated drain region and a second ESD region is located beneath the unsilicided portion of the elongated drain region, the second ESD region being spaced from the first ESD region.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: May 4, 2010
    Assignee: Infineon Technologies AG
    Inventors: Cornelius Christian Russ, David Alvarez, Kiran V. Chatty, Jens Schneider, Robert Gauthier, Martin Wendel
  • Publication number: 20100006944
    Abstract: An input/output (I/O) mixed-voltage drive circuit and electrostatic discharge protection device for coupling to an I/O pad. The device includes an NFET device having a gate, a drain, a source and body, the gate adapted for coupling to a pre-drive circuit, the source and the body being coupled to one another and to ground. The device also includes a bipolar junction transistor having a collector, an emitter and a base, the emitter being coupled to the drain of the NFET and the collector being coupled to the I/O pad.
    Type: Application
    Filed: July 8, 2008
    Publication date: January 14, 2010
    Applicants: INTERNATIONAL BUSINESS MACHINES CORPORATION, INFINEON TECHNOLOGIES NORTH AMERICA CORP, SAMSUNG ELECTRONICS CO., LTD
    Inventors: Kiran V. Chatty, David Alvarez, Bong Jae Kwon, Christian C. Russ
  • Publication number: 20090189194
    Abstract: Semiconductor devices, methods of manufacturing thereof, and methods of arranging circuit components of an integrated circuit are disclosed. In one embodiment, a semiconductor device includes an array of a plurality of devices arranged in a plurality of rows. At least one electrostatic discharge (ESD) protection circuit or a portion thereof is disposed in at least one of the plurality of rows of the array of the plurality of devices.
    Type: Application
    Filed: January 28, 2008
    Publication date: July 30, 2009
    Inventors: Uwe Paul Schroeder, David Alvarez
  • Publication number: 20080179624
    Abstract: A semiconductor device includes an ESD device region disposed within a semiconductor body of a first semiconductor type, an isolation region surrounding the ESD device region, a first doped region of a second conductivity type disposed at a surface of the semiconductor body within the ESD region, and a second doped region of the first conductivity type disposed between the semiconductor body within the ESD region and at least a portion of the first doped region, where the doping concentration of the second doped region is higher than the semiconductor body. A third doped region of the second semiconductor type is disposed on the semiconductor body and a fourth region of the first conductivity type is disposed over the third doped region. A fifth doped region of the second conductivity type is disposed on the semiconductor body. A trigger device and an SCR is formed therefrom.
    Type: Application
    Filed: January 26, 2007
    Publication date: July 31, 2008
    Inventors: Cornelius Christian Russ, Kai Esmark, David Alvarez, Jens Schneider
  • Publication number: 20080142849
    Abstract: An ESD protection device includes a semiconductor body, a gate formed over a channel in the semiconductor body, the channel being doped with a first concentration of dopants of a first conductivity type. A first source/drain region is formed on the surface of the semiconductor body adjacent to a first edge of the gate, wherein the first source/drain region is doped with a dopant of a second conductivity type opposite the first conductivity type, and at least a portion of the first source/drain region is doped with a dopant of the first conductivity type. The concentration of the second conductivity type dopant exceeds the concentration of the first conductivity type dopant, and the concentration of the first conductivity type dopant in the first source/drain exceeds the first concentration.
    Type: Application
    Filed: December 13, 2006
    Publication date: June 19, 2008
    Inventors: David Alvarez, Richard Lindsay, Manfred Eller, Cornelius Christian Russ
  • Publication number: 20070249069
    Abstract: A method of manufacturing a semiconductor device includes providing a workpiece comprising a plurality of active areas, and analyzing the active areas to determine desired stress levels for each active area. The method includes determining at least one first active area to have a first amount of stress and at least one second active area to have a second amount of stress. A stress-controlling material is formed over the at least one second active area, but not over the at least one first active area. A stress-increasing material is formed over the at least one first active area and over the stress-controlling material that is over the at least one second active area.
    Type: Application
    Filed: April 25, 2006
    Publication date: October 25, 2007
    Inventors: David Alvarez, Kiran Chatty, Cornelius Russ
  • Publication number: 20070210387
    Abstract: An ESD protection device includes a source region, a channel region adjacent the source region, and an elongated drain region spaced from the source region by the channel region. The elongated drain region includes an unsilicided portion adjacent the channel and a silicided portion spaced from channel region by the unsilicided portion. A first ESD region is located beneath the silicided portion of the elongated drain region and a second ESD region is located beneath the unsilicided portion of the elongated drain region, the second ESD region being spaced from the first ESD region.
    Type: Application
    Filed: March 8, 2006
    Publication date: September 13, 2007
    Inventors: Cornelius Russ, David Alvarez, Kiran Chatty, Jens Schneider, Robert Gauthier, Martin Wendel