Patents by Inventor James D. Sproch

James D. Sproch 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: 10741538
    Abstract: In one well bias arrangement, no well bias voltage is applied to the n-well, and no well bias voltage is applied to the p-well. Because no external well bias voltage is applied, the n-well and the p-well are floating, even during operation of the devices in the n-well and the p-well. In another well bias arrangement, the lowest available voltage is not applied to the p-well, such as a ground voltage, or the voltage applied to the n+-doped source region of the n-type transistor in the p-well. This occurs even during operation of the n-type transistor in the p-well. In yet another well bias arrangement, the highest available voltage is not applied to the n-well, such as a supply voltage, or the voltage applied to the p+-doped source region of the p-type transistor in the n-well. This occurs even during operation of the p-type transistor in the n-well.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: August 11, 2020
    Assignee: Synopsys, Inc.
    Inventors: Victor Moroz, Jamil Kawa, James D. Sproch, Robert B. Lefferts
  • Publication number: 20170330872
    Abstract: In one well bias arrangement, no well bias voltage is applied to the n-well, and no well bias voltage is applied to the p-well. Because no external well bias voltage is applied, the n-well and the p-well are floating, even during operation of the devices in the n-well and the p-well. In another well bias arrangement, the lowest available voltage is not applied to the p-well, such as a ground voltage, or the voltage applied to the n+-doped source region of the n-type transistor in the p-well. This occurs even during operation of the n-type transistor in the p-well. In yet another well bias arrangement, the highest available voltage is not applied to the n-well, such as a supply voltage, or the voltage applied to the p+-doped source region of the p-type transistor in the n-well. This occurs even during operation of the p-type transistor in the n-well.
    Type: Application
    Filed: July 28, 2017
    Publication date: November 16, 2017
    Applicant: Synopsys, Inc.
    Inventors: Victor Moroz, Jamil Kawa, James D. Sproch, Robert B. Lefferts
  • Patent number: 9728528
    Abstract: In one well bias arrangement, no well bias voltage is applied to the n-well, and no well bias voltage is applied to the p-well. Because no external well bias voltage is applied, the n-well and the p-well are floating, even during operation of the devices in the n-well and the p-well. In another well bias arrangement, the lowest available voltage is not applied to the p-well, such as a ground voltage, or the voltage applied to the n+-doped source region of the n-type transistor in the p-well. This occurs even during operation of the n-type transistor in the p-well. In yet another well bias arrangement, the highest available voltage is not applied to the n-well, such as a supply voltage, or the voltage applied to the p+-doped source region of the p-type transistor in the n-well. This occurs even during operation of the p-type transistor in the n-well.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: August 8, 2017
    Assignee: SYNOPSYS, INC.
    Inventors: Victor Moroz, Jamil Kawa, James D. Sproch, Robert B. Lefferts
  • Patent number: 9287253
    Abstract: In one well bias arrangement, no well bias voltage is applied to the n-well, and no well bias voltage is applied to the p-well. Because no external well bias voltage is applied, the n-well and the p-well are floating, even during operation of the devices in the n-well and the p-well. In another well bias arrangement, the lowest available voltage is not applied to the p-well, such as a ground voltage, or the voltage applied to the n+-doped source region of the n-type transistor in the p-well. This occurs even during operation of the n-type transistor in the p-well. In yet another well bias arrangement, the highest available voltage is not applied to the n-well, such as a supply voltage, or the voltage applied to the p+-doped source region of the p-type transistor in the n-well. This occurs even during operation of the p-type transistor in the n-well.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: March 15, 2016
    Assignee: Synopsys, Inc.
    Inventors: Victor Moroz, Jamil Kawa, James D. Sproch, Robert B. Lefferts
  • Publication number: 20150162320
    Abstract: In one well bias arrangement, no well bias voltage is applied to the n-well, and no well bias voltage is applied to the p-well. Because no external well bias voltage is applied, the n-well and the p-well are floating, even during operation of the devices in the n-well and the p-well. In another well bias arrangement, the lowest available voltage is not applied to the p-well, such as a ground voltage, or the voltage applied to the n+-doped source region of the n-type transistor in the p-well. This occurs even during operation of the n-type transistor in the p-well. In yet another well bias arrangement, the highest available voltage is not applied to the n-well, such as a supply voltage, or the voltage applied to the p+-doped source region of the p-type transistor in the n-well. This occurs even during operation of the p-type transistor in the n-well.
    Type: Application
    Filed: December 9, 2014
    Publication date: June 11, 2015
    Applicant: SYNOPSYS, INC.
    Inventors: Victor Moroz, Jamil Kawa, James D. Sproch, Robert B. Lefferts
  • Patent number: 8999766
    Abstract: Roughly described, an antenna diode is formed at least partially within the exclusion zone around a TSV, and is connected to the TSV by way of a metal 1 layer conductor at the same time that the TSV is connected to either the gate poly or a diffusion region of one or more transistors placed outside the exclusion zone.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: April 7, 2015
    Assignee: Synopsys, Inc.
    Inventors: Qing Su, Min Ni, Zongwu Tang, Jamil Kawa, James D. Sproch
  • Patent number: 8877638
    Abstract: Roughly described, an antenna diode is formed at least partially within the exclusion zone around a TSV, and is connected to the TSV by way of a metal 1 layer conductor at the same time that the TSV is connected to either the gate poly or a diffusion region of one or more transistors placed outside the exclusion zone.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: November 4, 2014
    Assignee: Synopsys, Inc.
    Inventors: Jamil Kawa, Min Ni, James D. Sproch, Qing Su, Zongwu Tang
  • Publication number: 20140109027
    Abstract: Roughly described, an antenna diode is formed at least partially within the exclusion zone around a TSV, and is connected to the TSV by way of a metal 1 layer conductor at the same time that the TSV is connected to either the gate poly or a diffusion region of one or more transistors placed outside the exclusion zone.
    Type: Application
    Filed: December 18, 2013
    Publication date: April 17, 2014
    Applicant: SYNOPSYS, INC.
    Inventors: Qing Su Su, Min Ni Ni, Zongwu Tang, Jamil Kawa, James D. Sproch
  • Publication number: 20130113547
    Abstract: In one well bias arrangement, no well bias voltage is applied to the n-well, and no well bias voltage is applied to the p-well. Because no external well bias voltage is applied, the n-well and the p-well are floating, even during operation of the devices in the n-well and the p-well. In another well bias arrangement, the lowest available voltage is not applied to the p-well, such as a ground voltage, or the voltage applied to the n+-doped source region of the n-type transistor in the p-well. This occurs even during operation of the n-type transistor in the p-well. In yet another well bias arrangement, the highest available voltage is not applied to the n-well, such as a supply voltage, or the voltage applied to the p+-doped source region of the p-type transistor in the n-well. This occurs even during operation of the p-type transistor in the n-well.
    Type: Application
    Filed: December 22, 2011
    Publication date: May 9, 2013
    Applicant: Synopsys. Inc.
    Inventors: Victor Moroz, Jamil Kawa, James D. Sproch, Robert B. Lefferts
  • Publication number: 20130026575
    Abstract: Roughly described, an integrated circuit device has formed on a substrate a plurality of transistors including a first subset of at least one transistor and a second subset of at least one transistor, wherein all of the transistors in the first subset have one underlap distance and all of the transistors in the second subset have a different underlap distance. The transistors in the first and second subsets preferably have different threshold voltages, and preferably realize different points on the high performance/low power tradeoff.
    Type: Application
    Filed: July 28, 2011
    Publication date: January 31, 2013
    Applicant: SYNOPSYS, INC.
    Inventors: Victor Moroz, James D. Sproch
  • Publication number: 20120295433
    Abstract: Roughly described, an antenna diode is formed at least partially within the exclusion zone around a TSV, and is connected to the TSV by way of a metal 1 layer conductor at the same time that the TSV is connected to either the gate poly or a diffusion region of one or more transistors placed outside the exclusion zone.
    Type: Application
    Filed: August 6, 2012
    Publication date: November 22, 2012
    Applicant: SYNOPSYS, INC.
    Inventors: Qing Su, Min Ni, Zongwu Tang, Jamil Kawa, James D. Sproch
  • Patent number: 8264065
    Abstract: Roughly described, an antenna diode is formed at least partially within the exclusion zone around a TSV, and is connected to the TSV by way of a metal 1 layer conductor at the same time that the TSV is connected to either the gate poly or a diffusion region of one or more transistors placed outside the exclusion zone.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: September 11, 2012
    Assignee: Synopsys, Inc.
    Inventors: Qing Su, Min Ni, Zongwu Tang, Jamil Kawa, James D. Sproch
  • Publication number: 20110095367
    Abstract: Roughly described, an antenna diode is formed at least partially within the exclusion zone around a TSV, and is connected to the TSV by way of a metal 1 layer conductor at the same time that the TSV is connected to either the gate poly or a diffusion region of one or more transistors placed outside the exclusion zone.
    Type: Application
    Filed: October 23, 2009
    Publication date: April 28, 2011
    Applicant: SYNOPSYS, INC.
    Inventors: Qing Su, Min Ni, Zongwu Tang, Jamil Kawa, James D. Sproch
  • Patent number: 6247134
    Abstract: A method and system for power savings within a pipelined design by performing intelligent stage gating. The present invention recognizes that not every operand applied to the input of a pipeline requires a recomputation in the different pipeline stages. Circuitry is used to generate a signal, C, indicating that this condition holds. C is then used to gate the register bank at the input of the first pipeline stage thereby potentially saving power in the register bank. Moreover, C can also be stored in a register, the output of which: a) gates the register bank of the second stage; and b) connects to another register to store signal C to be used in the third stage. Power savings is provided by not clocking the register circuit of the stage, and in some instances, power is saved within the stage's associated combinational logic. In one embodiment, a register (to store C) is added in each stage of a pipeline to use C as a gating signal in the subsequent stage.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: June 12, 2001
    Assignee: Synopsys, Inc.
    Inventors: James D. Sproch, Michael Münch, Renu Mehra
  • Patent number: 4719456
    Abstract: A video dot intensity balancer for use in a video display system wherein information is represented by a series of logic bits in a video stream corresponding to dots to be displayed on a CRT is disclosed. Logic elements are coupled to the output of a bit generator for comparing adjacent bits and outputting an information-defining signal wherein a single information-defining bit never stands alone. In this manner, apparent intensity imbalances on the video screen are eliminated.
    Type: Grant
    Filed: March 8, 1985
    Date of Patent: January 12, 1988
    Assignee: Standard Microsystems Corporation
    Inventors: James D. Sproch, Morton B. Herman
  • Patent number: 4638459
    Abstract: A dynamic read only memory (ROM) which comprises a memory select precharge section, a memory select section, a memory section, a memory precharge section and a plurality of grounding devices. The ground reference for the pulldown transistors is selectively activated at an appropriate time such that the memory sections are active only for a relatively brief portion of the memory cycle, thereby reducing dc power consumption and simplifying the driver circuit.
    Type: Grant
    Filed: January 31, 1985
    Date of Patent: January 20, 1987
    Assignee: Standard Microsystems Corp.
    Inventors: Henry W. Pechar, Jr., James D. Sproch