Patents by Inventor Henry W. Singor

Henry W. Singor 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).

  • System and method of high speed, high voltage swing electrostatic discharge protection
    Patent number: 10454268
    Abstract: An ESD protection circuit for an IC having multiple diodes coupled in series between a signal pad and a reference pad including a first diode coupled to the signal pad, a last diode coupled to the reference pad, and at least one intermediate diode. The protection circuit includes a bias network which may include one or more resistors, each coupled in parallel with a corresponding intermediate diode. One or more capacitors may be included, each coupled in parallel with a corresponding intermediate diode. For diode strings with four or more diodes, the resistances of the resistors may increase in the direction from the signal pad to the reference pad. The capacitances of the capacitors, if included, may decrease in the direction from the signal pad to the reference pad. The reference pad may be a voltage supply pad, such as a ground pad or a positive supply voltage pad.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: October 22, 2019
    Assignee: Silicon Laboratories Inc.
    Inventor: Henry W Singor
  • SYSTEM AND METHOD OF HIGH SPEED, HIGH VOLTAGE SWING ELECTROSTATIC DISCHARGE PROTECTION
    Publication number: 20180054054
    Abstract: An ESD protection circuit for an IC having multiple diodes coupled in series between a signal pad and a reference pad including a first diode coupled to the signal pad, a last diode coupled to the reference pad, and at least one intermediate diode. The protection circuit includes a bias network which may include one or more resistors, each coupled in parallel with a corresponding intermediate diode. One or more capacitors may be included, each coupled in parallel with a corresponding intermediate diode. For diode strings with four or more diodes, the resistances of the resistors may increase in the direction from the signal pad to the reference pad. The capacitances of the capacitors, if included, may decrease in the direction from the signal pad to the reference pad. The reference pad may be a voltage supply pad, such as a ground pad or a positive supply voltage pad.
    Type: Application
    Filed: August 22, 2016
    Publication date: February 22, 2018
    Inventor: Henry W. Singor
  • Electrostatic discharge circuitry with damping resistor
    Patent number: 8355227
    Abstract: An apparatus formed on a substrate includes a pad, electrostatic discharge circuitry, and a metal damping resistor connected between the pad and the electrostatic discharge circuitry.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: January 15, 2013
    Assignee: Silicon Laboratories Inc.
    Inventor: Henry W. Singor
  • ELECTROSTATIC DISCHARGE CIRCUITRY WITH DAMPING RESISTOR
    Publication number: 20110150135
    Abstract: An apparatus formed on a substrate includes a pad, electrostatic discharge circuitry, and a metal damping resistor connected between the pad and the electrostatic discharge circuitry.
    Type: Application
    Filed: December 17, 2009
    Publication date: June 23, 2011
    Applicant: SILICON LABORATORIES INC.
    Inventor: Henry W. Singor