Patents by Inventor Ralph Schaeffer

Ralph Schaeffer 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: 20070046311
    Abstract: Systems and methods for sensing obstructions associated with electrical testing of microfeature workpieces are disclosed. An apparatus in accordance with one embodiment includes a first support member configured to releasably carry a microfeature workpiece, a second support member positioned proximate to the first support member and configured to carry an electrical testing device, wherein at least one of the first and second support members is movable toward and away from the other. The apparatus can further include a signal source (e.g., radiation source) positioned proximate to the support member, and a signal sensor (e.g., a radiation sensor) positioned at least proximate to the first support member and the signal source. The signal sensor can be configured to received at least a portion of the signal directed by the signal source and passing proximate to the first support member.
    Type: Application
    Filed: September 1, 2005
    Publication date: March 1, 2007
    Applicant: Micron Technology, Inc.
    Inventors: Ralph Schaeffer, Andrew Krivy
  • Patent number: 7170304
    Abstract: Microelectronic components are commonly tested with probe cards. Certain aspects of probes, probe cards, and methods of testing microelectronic components are discussed herein. In one specific example, a probe card includes a base and a probe carried by the base. An actuator is associated with the probe and is adapted to selectively position the probe with respect to an electrical contact on the microelectronic component. A test power circuit is coupled to the first probe and adapted to deliver test power to the first probe. In one exemplary method, an actuator is actuated to move the probe from a first probe arrangement to a second probe arrangement.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: January 30, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Ralph Schaeffer, Brett Crump
  • Patent number: 7145355
    Abstract: Microelectronic components are commonly tested with probe cards. Certain aspects of the invention provide alternative probes, probe cards, and methods of testing microelectronic components. In one specific example, a probe card includes a base and a probe carried by the base. An actuator is associated with the probe and is adapted to selectively position the probe with respect to an electrical contact on the microelectronic component. A test power circuit is coupled to the first probe and adapted to deliver test power to the first probe. In one exemplary method, a microelectronic component is tested by contacting each of a plurality of second probes carried by the probe card to one of a plurality of spaced-apart second contacts on the microelectronic component, thereby aligning each of the first probes with a first contact of the microelectronic component.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: December 5, 2006
    Assignee: Micron Technology, Inc.
    Inventors: Ralph Schaeffer, Brett Crump
  • Patent number: 6972580
    Abstract: Microelectronic components are commonly tested with probe cards. Certain aspects of the invention provide alternative probes, probe cards, and methods of testing microelectronic components. In one specific example, a probe card includes a base and a probe carried by the base. An actuator is associated with the probe and is adapted to selectively position the probe with respect to an electrical contact on the microelectronic component. A test power circuit is coupled to the first probe and adapted to deliver test power to the first probe. In one exemplary method, a microelectronic component is tested by contacting each of a plurality of second probes carried by the probe card to one of a plurality of spaced-apart second contacts on the microelectronic component, thereby aligning each of the first probes with a first contact of the microelectronic component.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: December 6, 2005
    Assignee: Micron Technology, Inc.
    Inventors: Ralph Schaeffer, Brett Crump
  • Publication number: 20050258848
    Abstract: Microelectronic components are commonly tested with probe cards. Certain aspects of the invention provide alternative probes, probe cards, and methods of testing microelectronic components. In one specific example, a probe card includes a base and a probe carried by the base. An actuator is associated with the probe and is adapted to selectively position the probe with respect to an electrical contact on the microelectronic component. A test power circuit is coupled to the first probe and adapted to deliver test power to the first probe. In one exemplary method, a microelectronic component is tested by contacting each of a plurality of second probes carried by the probe card to one of a plurality of spaced-apart second contacts on the microelectronic component, thereby aligning each of the first probes with a first contact of the microelectronic component.
    Type: Application
    Filed: July 28, 2005
    Publication date: November 24, 2005
    Inventors: Ralph Schaeffer, Brett Crump
  • Patent number: 6952109
    Abstract: Microelectronic components are commonly tested with probe cards. Certain aspects of the invention provide alternative probes, probe cards, and methods of testing microelectronic components. In one specific example, a probe card includes a base and a probe carried by the base. An actuator is associated with the probe and is adapted to selectively position the probe with respect to an electrical contact on the microelectronic component. A test power circuit is coupled to the first probe and adapted to deliver test power to the first probe. In one exemplary method, a microelectronic component is tested by contacting each of a plurality of second probes carried by the probe card to one of a plurality of spaced-apart second contacts on the microelectronic component, thereby aligning each of the first probes with a first contact of the microelectronic component.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: October 4, 2005
    Assignee: Micron Technology, Inc.
    Inventors: Ralph Schaeffer, Brett Crump
  • Publication number: 20050206399
    Abstract: Microelectronic components are commonly tested with probe cards. Certain aspects of the invention provide alternative probes, probe cards, and methods of testing microelectronic components. In one specific example, a probe card includes a base and a probe carried by the base. An actuator is associated with the probe and is adapted to selectively position the probe with respect to an electrical contact on the microelectronic component. A test power circuit is coupled to the first probe and adapted to deliver test power to the first probe. In one exemplary method, a microelectronic component is tested by contacting each of a plurality of second probes carried by the probe card to one of a plurality of spaced-apart second contacts on the microelectronic component, thereby aligning each of the first probes with a first contact of the microelectronic component.
    Type: Application
    Filed: May 19, 2005
    Publication date: September 22, 2005
    Applicant: Micron Technology, Inc.
    Inventors: Ralph Schaeffer, Brett Crump
  • Patent number: 6924653
    Abstract: Microelectronic components are commonly tested with probe cards. Certain aspects of the invention provide alternative probes, probe cards, and methods-of testing microelectronic components. In one specific example, a probe card includes a base and a probe carried by the base. An actuator is associated with the probe and is adapted to selectively position the probe with respect to an electrical contact on the microelectronic component. A test power circuit is coupled to the first probe and adapted to deliver test power to the first probe. In one exemplary method, a microelectronic component is tested by contacting each of a plurality of second probes carried by the probe card to one of a plurality of spaced-apart second contacts on the microelectronic component, thereby aligning each of the first probes with a first contact of the microelectronic component.
    Type: Grant
    Filed: August 26, 2002
    Date of Patent: August 2, 2005
    Assignee: Micron Technology, Inc.
    Inventors: Ralph Schaeffer, Brett Crump
  • Publication number: 20050024072
    Abstract: Microelectronic components are commonly tested with probe cards. Certain aspects of the invention provide alternative probes, probe cards, and methods of testing microelectronic components. In one specific example, a probe card includes a base and a probe carried by the base. An actuator is associated with the probe and is adapted to selectively position the probe with respect to an electrical contact on the microelectronic component. A test power circuit is coupled to the first probe and adapted to deliver test power to the first probe. In one exemplary method, a microelectronic component is tested by contacting each of a plurality of second probes carried by the probe card to one of a plurality of spaced-apart second contacts on the microelectronic component, thereby aligning each of the first probes with a first contact of the microelectronic component.
    Type: Application
    Filed: September 2, 2004
    Publication date: February 3, 2005
    Inventors: Ralph Schaeffer, Brett Crump
  • Publication number: 20050024071
    Abstract: Microelectronic components are commonly tested with probe cards. Certain aspects of the invention provide alternative probes, probe cards, and methods of testing microelectronic components. In one specific example, a probe card includes a base and a probe carried by the base. An actuator is associated with the probe and is adapted to selectively position the probe with respect to an electrical contact on the microelectronic component. A test power circuit is coupled to the first probe and adapted to deliver test power to the first probe. In one exemplary method, a microelectronic component is tested by contacting each of a plurality of second probes carried by the probe card to one of a plurality of spaced-apart second contacts on the microelectronic component, thereby aligning each of the first probes with a first contact of the microelectronic component.
    Type: Application
    Filed: September 2, 2004
    Publication date: February 3, 2005
    Inventors: Ralph Schaeffer, Brett Crump
  • Publication number: 20040036490
    Abstract: Microelectronic components are commonly tested with probe cards. Certain aspects of the invention provide alternative probes, probe cards, and methods-of testing microelectronic components. In one specific example, a probe card includes a base and a probe carried by the base. An actuator is associated with the probe and is adapted to selectively position the probe with respect to an electrical contact on the microelectronic component. A test power circuit is coupled to the first probe and adapted to deliver test power to the first probe. In one exemplary method, a microelectronic component is tested by contacting each of a plurality of second probes carried by the probe card to one of a plurality of spaced-apart second contacts on the microelectronic component, thereby aligning each of the first probes with a first contact of the microelectronic component.
    Type: Application
    Filed: August 26, 2002
    Publication date: February 26, 2004
    Inventors: Ralph Schaeffer, Brett Crump