Patents by Inventor Subramani Kengeri

Subramani Kengeri 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: 20140042641
    Abstract: An approach for providing MOL constructs using diffusion contact structures is disclosed. Embodiments include: providing a first diffusion region in a substrate; providing, via a first lithography process, a first diffusion contact structure; providing, via a second lithography process, a second diffusion contact structure; and coupling the first diffusion contact structure to the first diffusion region and the second diffusion contact structure. Embodiments include: providing a second diffusion region in the substrate; providing a diffusion gap region between the first and second diffusion regions; providing the diffusion contact structure over the diffusion gap region; and coupling, via the diffusion contact structure, the first and second diffusion regions.
    Type: Application
    Filed: August 7, 2012
    Publication date: February 13, 2014
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Mahbub Rashed, Yuansheng Ma, Irene Lin, Jason Stephens, Yunfei Deng, Yuan Lei, Jongwook Kye, Rod Augur, Shibly Ahmed, Subramani Kengeri, Suresh Venkatesan
  • Patent number: 8631365
    Abstract: The memory building blocks can be used in conjunction with ASIC automatic design tools to generate a memory macro (e.g., a memory array) using a known ASIC design flow including, for example, register transfer level (RTL), synthesis, automatic place and route (APR) and timing analysis.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: January 14, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Subramani Kengeri, Chung-Cheng Chou, Bharath Upputuri, Hank Cheng, Ming-Zhang Kuo, Pey-Huey Chen
  • Publication number: 20140001563
    Abstract: One illustrative device disclosed herein includes a continuous active region defined in a semiconducting substrate, first and second transistors formed in and above the continuous active region, each of the first and second transistors comprising a plurality of doped regions formed in the continuous active region, a conductive isolating electrode positioned above the continuous active region between the first and second transistors and a power rail conductively coupled to the conductive isolating electrode.
    Type: Application
    Filed: July 2, 2012
    Publication date: January 2, 2014
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Mahbub Rashed, David Doman, Marc Tarabbia, Irene Lin, Jeff Kim, Chinh Nguyen, Steve Soss, Scott Johnson, Subramani Kengeri, Suresh Venkatesan
  • Patent number: 8618607
    Abstract: One illustrative device disclosed herein includes a continuous active region defined in a semiconducting substrate, first and second transistors formed in and above the continuous active region, each of the first and second transistors comprising a plurality of doped regions formed in the continuous active region, a conductive isolating electrode positioned above the continuous active region between the first and second transistors and a power rail conductively coupled to the conductive isolating electrode.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: December 31, 2013
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Mahbub Rashed, David Doman, Marc Tarabbia, Irene Lin, Jeff Kim, Chinh Nguyen, Steve Soss, Scott Johnson, Subramani Kengeri, Suresh Venkatesan
  • Patent number: 8598633
    Abstract: A semiconductor device includes a semiconductor substrate having a diffusion region. A transistor is formed within the diffusion region. A power rail is disposed outside the diffusion region. A contact layer is disposed above the substrate and below the power rail. A via is disposed between the contact layer and the power rail to electrically connect the contact layer to the power rail. The contact layer includes a first length disposed outside the diffusion region and a second length extending from the first length into the diffusion region and electrically connected to the transistor.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: December 3, 2013
    Assignee: GLOBALFOUNDRIES, Inc.
    Inventors: Marc Tarabbia, James B. Gullette, Mahbub Rashed, David S. Doman, Irene Y. Lin, Ingolf Lorenz, Larry Ho, Chinh Nguyen, Jeff Kim, Jongwook Kye, Yuansheng Ma, Yunfei Deng, Rod Augur, Seung-Hyun Rhee, Jason E. Stephens, Scott Johnson, Subramani Kengeri, Suresh Venkatesan
  • Patent number: 8581348
    Abstract: A semiconductor device is provided for implementing at least one logic element. The semiconductor device includes a semiconductor substrate with a first transistor and a second transistor formed on the semiconductor substrate. Each of the transistors includes a source, a drain, and a gate. A CA layer is electrically connected to at least one of the source or the drain of the first transistor. A CB layer is electrically connected to at least one of the gates of the transistors and the CA layer.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: November 12, 2013
    Assignee: GLOBALFOUNDRIES, Inc.
    Inventors: Mahbub Rashed, Steven Soss, Jongwook Kye, Irene Y. Lin, James Benjamin Gullette, Chinh Nguyen, Jeff Kim, Marc Tarabbia, Yuansheng Ma, Yunfei Deng, Rod Augur, Seung-Hyun Rhee, Scott Johnson, Subramani Kengeri, Suresh Venkatesan
  • Publication number: 20130275935
    Abstract: An approach for providing timing-closed FinFET designs from planar designs is disclosed. Embodiments include: receiving one or more planar cells associated with a planar design; generating an initial FinFET design corresponding to the planar design based on the planar cells and a FinFET model; and processing the initial FinFET design to provide a timing-closed FinFET design. Other embodiments include: determining a race condition associated with a path of the initial FinFET design based on a timing analysis of the initial FinFET design; and increasing delay associated with the path to resolve hold violations associated with the race condition, wherein the processing of the initial FinFET design is based on the delay increase.
    Type: Application
    Filed: April 13, 2012
    Publication date: October 17, 2013
    Applicant: GLOBALFOUNDRIES Inc.
    Inventors: Mahbub Rashed, David Doman, Dinesh Somasekhar, Yan Wang, Yunfei Deng, Navneet Jain, Jongwook Kye, Ali Keshavarzi, Subramani Kengeri, Suresh Venkatesan
  • Patent number: 8547779
    Abstract: An interleaved memory circuit includes a memory bank including at least one first memory cell for storing a charge representative of a first datum, the first memory cell being coupled with a first word line and a first bit line. The interleaved memory circuit further includes a local control circuit coupled with the memory bank. The interleaved memory circuit further includes a global control circuit coupled with the local control circuit, an interleaving access including a clock signal having a first cycle and a second cycle for accessing the first memory cell, where the second cycle is capable of enabling the local control circuit to trigger a first transition of a first read column select signal RSSL for accessing the first memory cell.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: October 1, 2013
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Kuoyuan Hsu, Ming-Chieh Huang, Young Suk Kim, Subramani Kengeri
  • Publication number: 20130181289
    Abstract: A semiconductor device includes a semiconductor substrate having a diffusion region. A transistor is formed within the diffusion region. A power rail is disposed outside the diffusion region. A contact layer is disposed above the substrate and below the power rail. A via is disposed between the contact layer and the power rail to electrically connect the contact layer to the power rail. The contact layer includes a first length disposed outside the diffusion region and a second length extending from the first length into the diffusion region and electrically connected to the transistor.
    Type: Application
    Filed: January 16, 2012
    Publication date: July 18, 2013
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Marc Tarabbia, James B. Gullette, Mahbub Rashed, David S. Doman, Irene Y. Lin, Ingolf Lorenz, Larry Ho, Chinh Nguyen, Jeff Kim, Jongwook Kye, Yuansheng Ma, Yunfei Deng, Rod Augur, Seung-Hyun Rhee, Jason E. Stephens, Scott Johnson, Subramani Kengeri, Suresh Venkatesan
  • Publication number: 20130146982
    Abstract: A semiconductor device is provided for implementing at least one logic element. The semiconductor device includes a semiconductor substrate with a first transistor and a second transistor formed on the semiconductor substrate. Each of the transistors includes a source, a drain, and a gate. A CA layer is electrically connected to at least one of the source or the drain of the first transistor. A CB layer is electrically connected to at least one of the gates of the transistors and the CA layer.
    Type: Application
    Filed: December 13, 2011
    Publication date: June 13, 2013
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Mahbub Rashed, Steven Soss, Jongwook Kye, Irene Y. Lin, James Benjamin Gullette, Chinh Nguyen, Jeff Kim, Marc Tarabbia, Yuansheng Ma, Yunfei Deng, Rod Augur, Seung-Hyun Rhee, Scott Johnson, Subramani Kengeri, Suresh Venkatesan
  • Publication number: 20130146986
    Abstract: A semiconductor device is provided for implementing at least one logic element. The semiconductor device includes a semiconductor substrate with a first transistor and a second transistor formed on the semiconductor substrate. Each of the transistors comprises a source, a drain, and a gate. A trench silicide layer electrically connects one of the source or the drain of the first transistor to one of the source or the drain of the second transistor.
    Type: Application
    Filed: December 13, 2011
    Publication date: June 13, 2013
    Inventors: Mahbub Rashed, Irene Y. Lin, Steven Soss, Jeff Kim, Chinh Nguyen, Marc Tarabbia, Scott Johnson, Subramani Kengeri, Suresh Venkatesan
  • Patent number: 8432759
    Abstract: A circuit having a first circuit configured to receive an input voltage and generate a first voltage that generates a first current flowing through a resistive device and a second voltage that generates a second current; a node electrically coupled to the resistive device and having a third voltage that generates a third current; and a second circuit configured to generate a fourth voltage having a logic state indicating a logic state of the resistive device.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: April 30, 2013
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Kuoyuan Hsu, Po-Hung Chen, Jiann-Tseng Huang, Subramani Kengeri
  • Publication number: 20120213013
    Abstract: The memory building blocks can be used in conjunction with ASIC automatic design tools to generate a memory macro (e.g., a memory array) using a known ASIC design flow including, for example, register transfer level (RTL), synthesis, automatic place and route (APR) and timing analysis.
    Type: Application
    Filed: May 1, 2012
    Publication date: August 23, 2012
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Subramani KENGERI, Chung-Cheng CHOU, Bharath UPPUTURI, Hank CHENG, Ming-Zhang KUO, Pey-Huey CHEN
  • Publication number: 20120176856
    Abstract: An interleaved memory circuit includes a memory bank including at least one first memory cell for storing a charge representative of a first datum, the first memory cell being coupled with a first word line and a first bit line. The interleaved memory circuit further includes a local control circuit coupled with the memory bank. The interleaved memory circuit further includes a global control circuit coupled with the local control circuit, an interleaving access including a clock signal having a first cycle and a second cycle for accessing the first memory cell, where the second cycle is capable of enabling the local control circuit to trigger a first transition of a first read column select signal RSSL for accessing the first memory cell.
    Type: Application
    Filed: March 23, 2012
    Publication date: July 12, 2012
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Kuoyuan HSU, Ming-Chieh HUANG, Young Suk KIM, Subramani KENGERI
  • Patent number: 8208329
    Abstract: A method of operating a memory circuit includes providing the memory circuit. The memory circuit includes a memory cell; a word line connected to the memory cell; a first local bit line and a second local bit line connected to the memory cell; and a first global bit line and a second global bit line coupled to the first and the second local bit lines, respectively. The method further includes starting an equalization to equalize voltages on the first and the second local bit lines; stopping the equalization; and after the step of starting the equalization and before the step of stopping the equalization, writing values from the first and the second global bit lines to the first and the second local bit lines.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: June 26, 2012
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Subramani Kengeri, Kuoyuan (Peter) Hsu, Bing Wang
  • Patent number: 8185851
    Abstract: The memory building blocks can be used in conjunction with ASIC automatic design tools to generate a memory macro (e.g., a memory array) using a known ASIC design flow including, for example, register transfer level (RTL), synthesis, automatic place and route (APR) and timing analysis.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: May 22, 2012
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Subramani Kengeri, Chung-Cheng Chou, Bharath Upputuri, Hank Cheng, Ming-Zhang Kuo, Pey-Huey Chen
  • Patent number: 8164974
    Abstract: An interleaved memory circuit includes a first memory bank having a first memory cell. A first local control circuit is coupled with the first memory bank. A second memory bank includes a second memory cell. A second local control circuit is coupled with the second memory bank. An IO block is coupled with the first memory bank and the second memory bank. A global control circuit is coupled with the first and second local control circuits. An interleaving access includes a clock signal having a first cycle and a second cycle for accessing the first memory cell and the second memory cell, respectively, wherein the second cycle is capable of enabling the first local control circuit to trigger a first transition of a first read column select signal RSSL for accessing the first memory cell.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: April 24, 2012
    Inventors: Kuoyuan Hsu, Ming-Chieh Huang, Young Suk Kim, Subramani Kengeri
  • Publication number: 20110199835
    Abstract: A method of operating a memory circuit includes providing the memory circuit. The memory circuit includes a memory cell; a word line connected to the memory cell; a first local bit line and a second local bit line connected to the memory cell; and a first global bit line and a second global bit line coupled to the first and the second local bit lines, respectively. The method further includes starting an equalization to equalize voltages on the first and the second local bit lines; stopping the equalization; and after the step of starting the equalization and before the step of stopping the equalization, writing values from the first and the second global bit lines to the first and the second local bit lines.
    Type: Application
    Filed: April 26, 2011
    Publication date: August 18, 2011
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Subramani Kengeri, Kuoyuan (Peter) Hsu, Bing Wang
  • Patent number: 7952946
    Abstract: A method of operating a memory circuit includes providing the memory circuit. The memory circuit includes a memory cell; a word line connected to the memory cell; a first local bit line and a second local bit line connected to the memory cell; and a first global bit line and a second global bit line coupled to the first and the second local bit lines, respectively. The method further includes starting an equalization to equalize voltages on the first and the second local bit lines; stopping the equalization; and after the step of starting the equalization and before the step of stopping the equalization, writing values from the first and the second global bit lines to the first and the second local bit lines.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: May 31, 2011
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Subramani Kengeri, Kuoyuan (Peter) Hsu, Bing Wang
  • Patent number: 7898875
    Abstract: A memory circuit includes a memory array, which further includes a plurality of memory cells arranged in rows and columns; a plurality of first bit-lines, each connected to a column of the memory array; and a plurality of write-assist latches, each connected to one of the plurality of first bit-lines. Each of the plurality of write-assist latches is configured to increase a voltage on a connecting one of the plurality of first bit-lines.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: March 1, 2011
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Derek C. Tao, Annie-Li-Keow Lum, Chung-Ji Lu, Subramani Kengeri