Patents by Inventor David Wolpert

David Wolpert 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: 20230090855
    Abstract: Embodiments for power generation include defining a power tile within a power distribution network having a grid of power rails, the power tile having logic gates, and applying an initial power grid pattern from a plurality of power grid patterns for the power tile such that initial power grid pattern relates to timing characteristics of the logic gates of the power tile. The power grid patterns each have a different number of connectors connecting one power rail to another power rail in the grid of power rails. A subsequent power grid pattern is selected from the power grid patterns for the power tile such that the subsequent power grid pattern meets a threshold condition for the timing characteristics of the logic gates of the power tile. The timing characteristics for the logic gates are determined based on a voltage drop associated with the subsequent power grid pattern.
    Type: Application
    Filed: September 20, 2021
    Publication date: March 23, 2023
    Inventors: David Wolpert, Basanth Jagannathan, Michael Hemsley Wood, Leon Sigal, James Leland, Alexander Joel Suess, Benjamin Neil Trombley, Paul G. Villarrubia
  • Publication number: 20230086010
    Abstract: A method is provided to increase processor frequency in an integrated circuit (IC). The method includes identifying a gate included in the IC, the gate having a gate threshold voltage and performing a plasma process to form an antenna signal path in signal communication with the gate. The method further comprises adjusting the plasma process or circuit design to increase plasma induced damage (PID) applied to the gate so as to alter the gate threshold voltage.
    Type: Application
    Filed: September 21, 2021
    Publication date: March 23, 2023
    Inventors: Christopher Gonzalez, David Wolpert, Michael Hemsley Wood
  • Publication number: 20230062945
    Abstract: Aspects of the invention include systems and methods for implementing a CMOS circuit design that uses a sea-of-gates fill methodology to provide latch-up avoidance. A non-limiting example computer-implemented method includes identifying a fill cell in the circuit design. The fill cell can include a power rail, a ground rail, and a field-effect transistor (FET) electrically coupled to the power rail through a via. The method can include disconnecting the via from the power rail and moving the via to a disconnected node in the fill cell. Moving the via decouples a source or drain of the fill cell from a well of the fill cell, preventing latch-up while maintaining via and metal shape density.
    Type: Application
    Filed: August 25, 2021
    Publication date: March 2, 2023
    Inventors: David Wolpert, Ryan Michael Kruse, Leon Sigal, Richard Edward Serton, Matthew Stephen Angyal, Terence Hook, Richard Andre Wachnik
  • Patent number: 11586798
    Abstract: A system is configured to avoid establishing an electrostatic discharge (ESD) region in an integrated circuit (IC). The system includes a processor and memory storing an IC simulator. The IC simulator establishes an IC chip that is sub-divided into a plurality of hierarchical levels. The IC simulator further analyzes a first hierarchical level to determine first connectivity information indicating connectivity between the first hierarchical level and one or both of lower-level pins and lower-level nets of a targeted hierarchical level having a lower-level of hierarchy with respect to the first hierarchical level and analyzes the targeted hierarchical level to determine second connectivity information indicating diode connectivity to one or both high-level pins and higher-level nets included in the first hierarchical level.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: February 21, 2023
    Assignee: International Business Machines Corporation
    Inventors: Brian Veraa, David Wolpert, Ryan Michael Kruse, Christopher Gonzalez
  • Publication number: 20230050432
    Abstract: Aspects of the invention include systems and methods configured to provide hierarchical circuit designs that makes use of a color decomposition of library cells having boundary-aware color selection. A non-limiting example computer-implemented method includes placing a plurality of shapes within a hierarchical level of a chip design. The plurality of shapes can include a top boundary shape, a bottom boundary shape, one or more center boundary shapes, and one or more internal shapes. A hierarchical hand-off region is constructed by pinning the top boundary shape to a first mask, pinning the bottom boundary shape to a second mask, and pinning the one or more center boundary shapes to a same mask. The same mask is selected from one of the first mask and the second mask.
    Type: Application
    Filed: August 11, 2021
    Publication date: February 16, 2023
    Inventors: David Wolpert, Leon Sigal, Michael Stewart Gray, Mitchell R. DeHond
  • Publication number: 20230048541
    Abstract: A system is configured to avoid establishing an electrostatic discharge (ESD) region in an integrated circuit (IC). The system includes a processor and memory storing an IC simulator. The IC simulator establishes an IC chip that is sub-divided into a plurality of hierarchical levels. The IC simulator further analyzes a first hierarchical level to determine first connectivity information indicating connectivity between the first hierarchical level and one or both of lower-level pins and lower-level nets of a targeted hierarchical level having a lower-level of hierarchy with respect to the first hierarchical level and analyzes the targeted hierarchical level to determine second connectivity information indicating diode connectivity to one or both high-level pins and higher-level nets included in the first hierarchical level.
    Type: Application
    Filed: August 13, 2021
    Publication date: February 16, 2023
    Inventors: Brian Veraa, David Wolpert, Ryan Michael Kruse, Christopher Gonzalez
  • Publication number: 20230051392
    Abstract: Aspects of the invention include methods, systems, and computer program products for integrated circuit development using cross-hierarchy antenna condition verification. A method includes obtaining a design of a hierarchical macro distributed between multiple files for an integrated circuit and analyzing, by a design verification tool, a route between at least one child macro and at least one pin of the hierarchical macro as defined in the files. The method further includes determining, by the design verification tool, a plurality of connection characteristics of the at least one child macro and the at least one pin forming the route and calculating, by the design verification tool, an antenna condition for the route based on the connection characteristics. The design of the hierarchical macro is adjusted to remove a violation of an antenna rule based on determining that the antenna condition of the route violates the antenna rule.
    Type: Application
    Filed: August 16, 2021
    Publication date: February 16, 2023
    Inventors: Michael Alexander Bowen, Gerald L Strevig, III, Amanda Christine Venton, Robert Mahlon Averill, III, Adam P. Matheny, David Wolpert, Mitchell R. DeHond
  • Publication number: 20230050539
    Abstract: Aspects of the invention include a computer-implemented method of chip design. The computer-implemented method of chip design include establishing an architecture with alternating rows of differently colored chip-level shapes. Cells are constrained to be rectangular with restricted widths. Constraint-observing parent and child cells are generated and respectively include boundaries with alternating rows of differently colored cell-level shapes for disposition in the architecture. The parent cell is positioned in the architecture such that the cell-level shapes thereof exhibit row and color alignment with the chip-level shapes. Child cells exhibiting uni-axial or multi-axial reflectivity are instantiated in the parent cell. A color solution is instantiated for each child cell in the parent cell such that cell-level shapes of the child cells exhibit row and color alignment with the cell-level shapes of the parent cell.
    Type: Application
    Filed: August 13, 2021
    Publication date: February 16, 2023
    Inventors: David Wolpert, Leon Sigal, Michael Stewart Gray, Mitchell R. DeHond
  • Publication number: 20220392995
    Abstract: A semiconductor device is provided. The semiconductor device includes: a first conductive electrode; a first dielectric stack structure provided on the first conductive electrode; a second conductive electrode provided on the first dielectric stack structure; a second dielectric stack structure provided on the second conductive electrode; and a third conductive electrode provided on the first dielectric stack structure, wherein each of the first dielectric stack structure and the second dielectric stack structure include a first dielectric layer comprising a first material; a second ferroelectric dielectric layer comprising a second material and provided on the first dielectric layer, and a third dielectric layer comprising a third material and provided on the second ferroelectric dielectric layer.
    Type: Application
    Filed: June 8, 2021
    Publication date: December 8, 2022
    Inventors: Takashi Ando, REINALDO VEGA, David Wolpert, Cheng Chi, Praneet Adusumilli
  • Patent number: 11487308
    Abstract: A system, method and computer program product for operating a low-voltage Internet-of-Things sensor device. The method includes sensing of the temperature dependence at each voltage condition in addition to the actual temperature and voltage. A programmed machine learning model uses the information to decide when it is appropriate to test the device functionality and use the results of different tests to determine when the system should run synchronously or asynchronously through a machine learning predictive algorithm. Based on said one or more sensed operating conditions, the system uses the model to detect a mode of operation of said IoT device indicating IoT device meets an expected level of performance, or a mode indicating said IoT device is not operating according to the expected level of performance. Based on the detected operating condition, the IoT device automatically adapts its operation to ensure a desired level of IoT sensor device performance.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: November 1, 2022
    Assignee: International Business Machines Corporation
    Inventors: Haard Kamlesh Mehta, David Wolpert
  • Publication number: 20220181252
    Abstract: An approach to forming a semiconductor device where the semiconductor device includes a first power rail with one or more vertically stacked contact vias connecting to the first power rail to a portion of a first de-coupling capacitor. The semiconductor device includes the first de-coupling capacitor in a first portion of a semiconductor substrate in a first gate cut trench.
    Type: Application
    Filed: December 3, 2020
    Publication date: June 9, 2022
    Inventors: Reinaldo Vega, David Wolpert, Takashi Ando, Praneet Adusumilli, Cheng Chi
  • Publication number: 20220148927
    Abstract: A method can include obtaining characteristic data for a wafer. The characteristic data can correspond to the wafer in a processed state and can include a set of stress values of the wafer. The wafer can include a front side, a back side opposite the front side, and a set of regions. The set of stress values can include a first stress value corresponding to a first region. In the processed state, one or more front-side processes can be completed on the front side of the wafer. The method can include determining that the first stress value exceeds a stress threshold and generating a compensation map. The compensation map can identify one or more regions for forming one or more trenches. The method can include initiating, based on the compensation map, a formation of a first trench on the back side of the wafer in the first region.
    Type: Application
    Filed: November 12, 2020
    Publication date: May 12, 2022
    Inventors: David Wolpert, DANIEL JAMES DECHENE, Lawrence A. Clevenger, Michael ROMAIN, SOMNATH GHOSH
  • Patent number: 11308257
    Abstract: A structure including a plurality of dielectric regions is described. The structure can include a rivet cell. The rivet cell can include a set of stacked vias. The rivet cell can extend through a stress hotspot of the structure. A length of the rivet cell can thread through at least one dielectric region among the plurality of dielectric regions. The rivet cell can be among a number of rivet cells inserted in the stress hotspot. The stress hotspot can be among a plurality of stress hotspots across the structure. A length of the rivet cell can be based on a model of a relationship between the length of the rivet cell and an energy release rate of the structure. The rivet cell can thread through an interface between a first dielectric region and a second dielectric region having different dielectric constants.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: April 19, 2022
    Assignee: International Business Machines Corporation
    Inventors: Dureseti Chidambarrao, David Wolpert, Atsushi Ogino, Matthew T. Guzowski, Steven Paul Ostrander, Tuhin Sinha, Michael Stewart Gray
  • Patent number: 11106850
    Abstract: Methods, systems and computer program products for providing flexible constraint-based logic cell placement are provided. Aspects include determining a cell placement restriction rule that specifies an offset requirement between a first type of logic cell and a second type of logic cell. Responsive to placing a first cell that is the first type of logic cell within a semiconductor layout, aspects include tagging the first cell with the cell placement restriction rule. Aspects also include placing a second cell that is the second type of logic cell at an initial position within the semiconductor layout. Responsive to determining that the initial position of the second cell violates the cell placement restriction rule, aspects include repositioning the first cell or the second cell to a modified position within the semiconductor layout such that the modified position satisfies the cell placement restriction rule.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: August 31, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: David Wolpert, Timothy A. Schell, Erwin Behnen, Leon Sigal
  • Patent number: 11055465
    Abstract: Methods, systems and computer program products for avoiding Boolean DRC failures during cell placement are provided. Aspects include generating a semiconductor layout by filling a plurality of rows within a macro block with cells including functional cells and fill cells. Aspects also include modifying the semiconductor layout by removing one or more fill cells from the macro block to create a gap. Aspects also include examining a set of cells that border edges of the gap to identify one or more predicted rule violations. Based on the identified one or more predicted rule violations, aspects also include modifying the semiconductor layout to change a shape of the gap to avoid the one or more predicted rule violations.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: July 6, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: David Wolpert, Timothy A. Schell, Michael Gray, Erwin Behnen, Robert Mahlon Averill, III
  • Publication number: 20210080982
    Abstract: A system, method and computer program product for operating a low-voltage Internet-of-Things sensor device. The method includes sensing of the temperature dependence at each voltage condition in addition to the actual temperature and voltage. A programmed machine learning model uses the information to decide when it is appropriate to test the device functionality and use the results of different tests to determine when the system should run synchronously or asynchronously through a machine learning predictive algorithm. Based on said one or more sensed operating conditions, the system uses the model to detect a mode of operation of said IoT device indicating IoT device meets an expected level of performance, or a mode indicating said IoT device is not operating according to the expected level of performance. Based on the detected operating condition, the IoT device automatically adapts its operation to ensure a desired level of IoT sensor device performance.
    Type: Application
    Filed: September 17, 2019
    Publication date: March 18, 2021
    Inventors: Haard Kamlesh Mehta, David Wolpert
  • Publication number: 20210064716
    Abstract: Methods, systems and computer program products for providing flexible constraint-based logic cell placement are provided. Aspects include determining a cell placement restriction rule that specifies an offset requirement between a first type of logic cell and a second type of logic cell. Responsive to placing a first cell that is the first type of logic cell within a semiconductor layout, aspects include tagging the first cell with the cell placement restriction rule. Aspects also include placing a second cell that is the second type of logic cell at an initial position within the semiconductor layout. Responsive to determining that the initial position of the second cell violates the cell placement restriction rule, aspects include repositioning the first cell or the second cell to a modified position within the semiconductor layout such that the modified position satisfies the cell placement restriction rule.
    Type: Application
    Filed: September 4, 2019
    Publication date: March 4, 2021
    Inventors: David WOLPERT, Timothy A. SCHELL, Erwin BEHNEN, Leon SIGAL
  • Publication number: 20210064719
    Abstract: Methods, systems and computer program products for avoiding Boolean DRC failures during cell placement are provided. Aspects include generating a semiconductor layout by filling a plurality of rows within a macro block with cells including functional cells and fill cells. Aspects also include modifying the semiconductor layout by removing one or more fill cells from the macro block to create a gap. Aspects also include examining a set of cells that border edges of the gap to identify one or more predicted rule violations. Based on the identified one or more predicted rule violations, aspects also include modifying the semiconductor layout to change a shape of the gap to avoid the one or more predicted rule violations.
    Type: Application
    Filed: September 4, 2019
    Publication date: March 4, 2021
    Inventors: David WOLPERT, Timothy A. SCHELL, Michael GRAY, Erwin BEHNEN, Robert Mahlon AVERILL, III
  • Patent number: 10896283
    Abstract: An example operation may include one or more of generating a noise map which comprises one or more noise shapes for one or more electrical components on a substrate of a circuit, modifying a design of the one or more electrical components in a pre-production design of the circuit based on the noise map and one or more noise rules of the circuit, and outputting an updated design of the circuit which includes the modified design of the one or more electrical components.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: January 19, 2021
    Assignee: International Business Machines Corporation
    Inventors: Kyle Indukummar Giesen, Samuel Sagan, David Wolpert
  • Patent number: 10885260
    Abstract: Methods, systems and computer program products for providing fin-based fill cell optimization are provided. Aspects include receiving a semiconductor layout comprising at least a first logic cell, a second logic cell, and a fill cell. A left boundary of the fill cell is adjacent to the first logic cell and a right boundary of the fill cell is adjacent to the second logic cell. Aspects also include determining a number of active left fins, right fins, and active fill cell fins associated with FinFET structures of the first logic cell, second logic cell and fill cell, respectively. Aspects also include comparing the number of active fins to a set of fin rules. Responsive to determining that the semiconductor layout violates the set of fin rules, aspects include modifying the semiconductor layout to change the number of active fill cell fins to satisfy the set of fin rules.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: January 5, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: David Wolpert, Timothy A. Schell, Michael Gray, Erwin Behnen, Robert Mahlon Averill, III