Patents Assigned to R&D Circuits, Inc.
  • Publication number: 20220252660
    Abstract: The present invention provides a method for detecting failed back-drills in PCBs in the process of fabricating a PCB so that the failed back-drill can be screened out or repaired. The present invention accomplishes this by adding a short to ground connection for every back-drill via that will be cut when the back-drill removes the via stub. If the back-drill is bad or failed the short to ground will fail the subsequent electrical tests. The PCB can be repaired by re-drilling the hole or via. The present invention allows for detecting failed back-drills with easy detection in the manufacturing stage using standard equipment and test procedures. This process creates a simple pass-fail measurement that uses an existing common test process to catch failed back drills in the PCB fabrication facility. This allows for easy and cost-effective repair and guarantees back-drill failures do not pass into the field.
    Type: Application
    Filed: February 11, 2021
    Publication date: August 11, 2022
    Applicant: R & D Circuits, Inc.
    Inventors: Donald Eric Thompson, Thomas Smith
  • Patent number: 10257930
    Abstract: The present invention provides for a method and structure for forming three-dimensionally routed dielectric wires between discrete points on the two or more parallel circuit planes. The wires may be freely routed in three-dimensional space as to create the most efficient routing between the two arbitrarily defined points on the two or more parallel circuit planes. Metalizing the outer surfaces of these three dimensional dielectric wires electrically coupling the discrete wires to their respective discrete contact points. Two or more of these wires may be in intimate contact to one another electrically coupling to each other as well as to two or more discrete contact pads. These electrically coupled contact pads may be on opposite sides or on the same side of the structure and the formed metalized wires may originate on one side and terminate on the other or originate and terminate from the same side.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: April 9, 2019
    Assignee: R&D Circuits, Inc.
    Inventors: Thomas P Warwick, Dhananjaya Trupuseema, James V Russell
  • Publication number: 20190053375
    Abstract: The present invention provides for a method and structure for forming three-dimensionally routed dielectric wires between discrete points on the two or more parallel circuit planes. The wires may be freely routed in three-dimensional space as to create the most efficient routing between the two arbitrarily defined points on the two or more parallel circuit planes. Metalizing the outer surfaces of these three dimensional dielectric wires electrically coupling the discrete wires to their respective discrete contact points. Two or more of these wires may be in intimate contact to one another electrically coupling to each other as well as to two or more discrete contact pads. These electrically coupled contact pads may be on opposite sides or on the same side of the structure and the formed metalized wires may originate on one side and terminate on the other or originate and terminate from the same side.
    Type: Application
    Filed: August 22, 2018
    Publication date: February 14, 2019
    Applicant: R&D Circuits, Inc.
    Inventors: Thomas P. Warwick, Dhanajaya Turpuseoma, James V. Russell
  • Publication number: 20190053374
    Abstract: The present invention provides for a method and structure for forming three-dimensionally routed dielectric wires between discrete points on the two or more parallel circuit planes. The wires may be freely routed in three-dimensional space as to create the most efficient routing between the two arbitrarily defined points on the two or more parallel circuit planes. Metalizing the outer surfaces of these three dimensional dielectric wires electrically coupling the discrete wires to their respective discrete contact points. Two or more of these wires may be in intimate contact to one another electrically coupling to each other as well as to two or more discrete contact pads. These electrically coupled contact pads may be on opposite sides or on the same side of the structure and the formed metalized wires may originate on one side and terminate on the other or originate and terminate from the same side.
    Type: Application
    Filed: August 22, 2018
    Publication date: February 14, 2019
    Applicant: R&D Circuits, Inc
    Inventors: Thomas P. Warwick, Dhananjaya Turpuseema, James V. Russell
  • Patent number: 10079202
    Abstract: Due to size and cost, it becomes advantageous for integrated circuit (IC) manufacturers to use “single-ended” (one signal path per unique information path) high speed signals electrical contact pins (pins transmitting digital information that connect the integrated circuit to a printed circuit board) with a minimum number of surrounding powers and grounds. This lower cost method, however, creates electrical interference and coupling issues known as crosstalk between two adjacent signal paths in the via structure required to electrically connect the integrated circuit to the signal paths in the printed circuit board. Such crosstalk, in turn, increases jitter, degrades timing, and ultimately reduces the maximum operating speed of the circuit (performance). This disclosure presents a structure using micro-plating, micro-drilling and micro-machining methods that isolates adjacent signals by placing a metal barrier that shunts coupling currents to ground.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: September 18, 2018
    Assignee: R&D Circuits, Inc.
    Inventor: Thomas P Warwick
  • Patent number: 9793226
    Abstract: The present invention describes essentially three different embodiments for the implementation of low impedance (over frequency) power delivery to a die. Such low impedance to a high frequency allows the die to operate at package-level speed, thus reducing yield loss at the packaging level. Each embodiment addresses a slightly different aspect of the overall wafer probe application. In each embodiment, however, the critical improvement of this disclosure is the location of the passive components used for supply filtering/decoupling relative to prior art. All three embodiments require a method to embed the passive components in close proximity to the pitch translation substrate or physically in the pitch translation substrate.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: October 17, 2017
    Assignee: R & D Circuits, Inc.
    Inventors: Thomas P. Warwick, James V. Russell, Dhananjaya Turpuseema
  • Publication number: 20170250146
    Abstract: The present invention describes essentially three different embodiments for the implementation of low impedance (over frequency) power delivery to a die. Such low impedance to a high frequency allows the die to operate at package-level speed, thus reducing yield loss at the packaging level. Each embodiment addresses a slightly different aspect of the overall wafer probe application. In each embodiment, however, the critical improvement of this disclosure is the location of the passive components used for supply filtering/decoupling relative to prior art. All three embodiments require a method to embed the passive components in close proximity to the pitch translation substrate or physically in the pitch translation substrate.
    Type: Application
    Filed: February 26, 2016
    Publication date: August 31, 2017
    Applicant: R&D Circuits, Inc
    Inventors: Thomas P. Warwick, James V. Russell, Dhananjaya Turpuseema
  • Patent number: 9373452
    Abstract: A shuttle board relay is provided that is scalable to a specific pitch or routing density. The shuttle board relay provides a path with different sets of electrical components that allows this via by allowing the integration of components and other types of customization. The shuttle board relay provides a minimally disruptive path to the signal. This minimizes loss and signal distortion, isolation and crosstalk are a function of pitch. Since pitch can be set, grounds included, etc., a design may be fully optimized for low cross talk.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: June 21, 2016
    Assignee: R&D Circuits, Inc.
    Inventors: Thomas P. Warwick, James V. Russell
  • Publication number: 20150348901
    Abstract: Due to size and cost, it becomes advantageous for integrated circuit (IC) manufacturers to use “single-ended” (one signal path per unique information path) high speed signals electrical contact pins (pins transmitting digital information that connect the integrated circuit to a printed circuit board) with a minimum number of surrounding powers and grounds. This lower cost method, however, creates electrical interference and coupling issues known as crosstalk between two adjacent signal paths in the via structure required to electrically connect the integrated circuit to the signal paths in the printed circuit board. Such crosstalk, in turn, increases jitter, degrades timing, and ultimately reduces the maximum operating speed of the circuit (performance). This disclosure presents a structure using micro-plating, micro-drilling and micro-machining methods that isolates adjacent signals by placing a metal barrier that shunts coupling currents to ground.
    Type: Application
    Filed: May 26, 2015
    Publication date: December 3, 2015
    Applicant: R&D Circuits, Inc
    Inventor: Thomas P. Warwick
  • Publication number: 20150096873
    Abstract: A shuttle board relay is provided that is scalable to a specific pitch or routing density. The shuttle board relay provides a path with different sets of electrical components that allows this via by allowing the integration of components and other types of customization. The shuttle board relay provides a minimally disruptive path to the signal. This minimizes loss and signal distortion, isolation and crosstalk are a function of pitch. Since pitch can be set, grounds included, etc., a design may be fully optimized for low cross talk.
    Type: Application
    Filed: October 8, 2013
    Publication date: April 9, 2015
    Applicant: R&D Circuits, Inc.
    Inventors: Thomas P. Warwick, James V. Russell
  • Publication number: 20140283379
    Abstract: Embedding a power modification component such as a capacitance inside of an adaptor board located to extend over and beyond the vias of the main circuit board so that a portion of the interposer board containing the embedded capacitance is located beyond where the vias or blinds are located. This permits that via to conduct through the opening. In this way, the capacitance and the resistance will have a closer contact point to the electrical component. A resistance can also be embedded in an opening in the adaptor board and be vertically aligned within the opening to make contact with a pad on top of the adaptor board and a pad at the bottom of the adaptor board so that electricity conducts through the embedded component.
    Type: Application
    Filed: June 6, 2014
    Publication date: September 25, 2014
    Applicant: R&D Circuits, Inc.
    Inventor: James V. Russell
  • Publication number: 20140268613
    Abstract: Embedding a power modification component such as a capacitance inside of an adaptor board located to extend over and beyond the vias of the main circuit board so that a portion of the interposer board containing the embedded capacitance is located beyond where the vias or blinds are located. This permits that via to conduct through the opening. In this way, the capacitance and the resistance will have a closer contact point to the electrical component. A resistance can also be embedded in an opening in the adaptor board and be vertically aligned within the opening to make contact with a pad on top of the adaptor board and a pad at the bottom of the adaptor board so that electricity conducts through the embedded component.
    Type: Application
    Filed: April 30, 2014
    Publication date: September 18, 2014
    Applicant: R&D Circuits,Inc.
    Inventor: James V. Russell
  • Patent number: 8792248
    Abstract: The present invention provides a method for embedding a power modification component such as a capacitance inside of an adaptor board located to extend over and beyond the vias of the main circuit board so that a portion of the interposer board containing the embedded capacitance is located beyond where the vias or blind vias are located. This permits that via to conduct through the opening. In this way, the capacitance and the resistance will have a closer contact point to the electrical component. With this methodology a resistance can also be embedded in an opening in the adaptor board and be vertically aligned within the opening to make contact with a pad on top of the adaptor board and a pad at the bottom of the adaptor board so that electricity conducts through the embedded component.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: July 29, 2014
    Assignee: R & D Circuits, Inc.
    Inventor: James V Russell
  • Patent number: 8743554
    Abstract: Embedding a power modification component such as a capacitance inside of an adaptor board located to extend over and beyond the vias of the main circuit board so that a portion of the interposer board containing the embedded capacitance is located beyond where the vias or blinds are located. This permits that via to conduct through the opening. In this way, the capacitance and the resistance will have a closer contact point to the electrical component. A resistance can also be embedded in an opening in the adaptor board and be vertically aligned within the opening to make contact with a pad on top of the adaptor board and a pad at the bottom of the adaptor board so that electricity conducts through the embedded component.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: June 3, 2014
    Assignee: R & D Circuits, Inc.
    Inventor: James V. Russell
  • Publication number: 20140069704
    Abstract: A method and an apparatus for forming a contact pad on a printed circuit board over a filled plate via or blind in which an additional metallic or a non metallic coating is applied to a final surface finished plate which encapsulates the side walls of the wear resistant surface plate, and also covers the side walls of the metal layer plated onto the filled via and the wrap around plated metal which was plated in the via and onto the surface of the base metal to the extents of the pad geometry. This prevents subsequent undermining through the etching process and ensuring the integrity and reliability of the vias' electrical connection when an underlying base metal such as but not limited to copper and the surface plated metal are formed when plating metal in the via and consequently onto the surface.
    Type: Application
    Filed: July 25, 2013
    Publication date: March 13, 2014
    Applicant: R&D Circuits, Inc.
    Inventors: Dan Turpuseema, James V. Russell
  • Publication number: 20130240247
    Abstract: A method and structure for improving signal integrity probing. A coaxial or a microcoaxial cable is threaded through an optional alignment substrate where the cable is used to support or align the cable or an array of cables. A conductive elastomer is placed on a cable or a microcoaxial cable to improve signal integrity probing.
    Type: Application
    Filed: March 14, 2012
    Publication date: September 19, 2013
    Applicant: R & D Circuits, Inc.
    Inventors: Thomas P. Warwick, James V. Russell
  • Publication number: 20120285011
    Abstract: Embedding a power modification component such as a capacitance inside of an adaptor board located to extend over and beyond the vias of the main circuit board so that a portion of the interposer board containing the embedded capacitance is located beyond where the vias or blinds are located. This permits that via to conduct through the opening. In this way, the capacitance and the resistance will have a closer contact point to the electrical component. A resistance can also be embedded in an opening in the adaptor board and be vertically aligned within the opening to make contact with a pad on top of the adaptor board and a pad at the bottom of the adaptor board so that electricity conducts through the embedded component.
    Type: Application
    Filed: June 22, 2012
    Publication date: November 15, 2012
    Applicant: R&D Circuits, Inc.
    Inventor: James V. Russell
  • Publication number: 20120081867
    Abstract: The present disclosure relates to reducing unwanted RF noise in a printed circuit board (PCB) containing an RF device. An isolation filter is embedded in a PCB containing an RDF device. By placing the isolation filter as close as possible to the RF device in order to dramatically reduce unwanted RF noise due to unavoidable coupling between Vias and planes in the PCB structure.
    Type: Application
    Filed: September 28, 2011
    Publication date: April 5, 2012
    Applicant: R&D Circuits, Inc.
    Inventors: Thomas P. Warwick, James V. Russell
  • Publication number: 20120048593
    Abstract: A looped conductive wire or alternatively a conductive material such as a conductive foil is electrically connected with elastomeric material to provide electrical connections with one or more electronic devices.
    Type: Application
    Filed: July 29, 2011
    Publication date: March 1, 2012
    Applicant: R&D Circuits, Inc.
    Inventor: James V. Russell