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).
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Publication number: 20070046311Abstract: 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: ApplicationFiled: September 1, 2005Publication date: March 1, 2007Applicant: Micron Technology, Inc.Inventors: Ralph Schaeffer, Andrew Krivy
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Patent number: 7170304Abstract: 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: GrantFiled: July 28, 2005Date of Patent: January 30, 2007Assignee: Micron Technology, Inc.Inventors: Ralph Schaeffer, Brett Crump
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Patent number: 7145355Abstract: 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: GrantFiled: May 19, 2005Date of Patent: December 5, 2006Assignee: Micron Technology, Inc.Inventors: Ralph Schaeffer, Brett Crump
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Patent number: 6972580Abstract: 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: GrantFiled: September 2, 2004Date of Patent: December 6, 2005Assignee: Micron Technology, Inc.Inventors: Ralph Schaeffer, Brett Crump
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Publication number: 20050258848Abstract: 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: ApplicationFiled: July 28, 2005Publication date: November 24, 2005Inventors: Ralph Schaeffer, Brett Crump
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Patent number: 6952109Abstract: 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: GrantFiled: September 2, 2004Date of Patent: October 4, 2005Assignee: Micron Technology, Inc.Inventors: Ralph Schaeffer, Brett Crump
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Publication number: 20050206399Abstract: 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: ApplicationFiled: May 19, 2005Publication date: September 22, 2005Applicant: Micron Technology, Inc.Inventors: Ralph Schaeffer, Brett Crump
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Patent number: 6924653Abstract: 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: GrantFiled: August 26, 2002Date of Patent: August 2, 2005Assignee: Micron Technology, Inc.Inventors: Ralph Schaeffer, Brett Crump
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Publication number: 20050024071Abstract: 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: ApplicationFiled: September 2, 2004Publication date: February 3, 2005Inventors: Ralph Schaeffer, Brett Crump
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Publication number: 20050024072Abstract: 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: ApplicationFiled: September 2, 2004Publication date: February 3, 2005Inventors: Ralph Schaeffer, Brett Crump
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Publication number: 20040036490Abstract: 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: ApplicationFiled: August 26, 2002Publication date: February 26, 2004Inventors: Ralph Schaeffer, Brett Crump