Patents by Inventor Dennis M. Lazaroff

Dennis M. Lazaroff 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: 20230123792
    Abstract: The present disclosure is drawn to microfluidic devices. The microfluidic device includes a microfluidic well, a layered composite stack, and an optical sensor. The layered composite stack includes an optical filter composited with an etch-stopping layer. The optical filter defines the microfluidic well. The optical sensor is associated with the microfluidic well and has the optical filter positioned therebetween.
    Type: Application
    Filed: March 31, 2020
    Publication date: April 20, 2023
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Alexander Govyadinov, Dennis M. LAZAROFF, Brett E. DAHLGREN, Stefan Enr LUCCHINI, Tod WOODFORD
  • Patent number: 8776337
    Abstract: The present disclosure includes methods of forming capacitive sensors. One method includes forming a first electrode array of the capacitive sensor on a first structure. Forming the first electrode array can include: forming a dielectric material on a substrate material; forming an electrode material on the dielectric material; removing portions of the electrode material to form a number of electrodes separated from each other; and removing at least a portion of the dielectric material from between the number of electrodes. The method can include bonding the first structure to a second structure having a second electrode array of the capacitive sensor formed thereon such that the number of electrodes of the first electrode array face a number of electrodes of the second electrode array.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: July 15, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Brian D. Homeijer, Robert G. Walmsley, Rodney L. Alley, Dennis M. Lazaroff, Sara J. Homeijer
  • Publication number: 20130019678
    Abstract: A micro electromechanical systems (MEMS) device includes a proof mass and a frame. The proof mass is to movably travel within the frame.
    Type: Application
    Filed: July 22, 2011
    Publication date: January 24, 2013
    Inventors: Dennis M. Lazaroff, Rodney L. Alley, Brian D. Horneijer, John L. Williams, Donald J. Milligan
  • Publication number: 20120025851
    Abstract: The present disclosure includes capacitive sensors and methods of forming capacitive sensors. One capacitive sensor includes a first substrate structure having a first dielectric material formed thereon and electrodes of a first electrode array formed on the first dielectric material. The sensor includes a second substrate structure facing the first substrate structure and having a second dielectric material formed thereon and electrodes of a second electrode array formed on the second dielectric material. The sensor includes a removed portion of the first dielectric material forming a recess between adjacent electrodes of the first electrode array, and the first substrate structure is moveable with respect to the second substrate structure.
    Type: Application
    Filed: July 30, 2010
    Publication date: February 2, 2012
    Inventors: Brian D. Homeijer, Robert G. Walmsley, Rodney L. Alley, Dennis M. Lazaroff, Sara J. Homeijer
  • Patent number: 7310175
    Abstract: A method of forming a MEMS device includes depositing a conductive material on a substructure, forming a first sacrificial layer over the conductive material, including forming a substantially planar surface of the first sacrificial layer, and forming a first element over the substantially planar surface of the first sacrificial layer, including communicating the first element with the conductive material through the first sacrificial layer. In addition, the method includes forming a second sacrificial layer over the first element, including forming a substantially planar surface of the second sacrificial layer, forming a support through the second sacrificial layer to the first element after forming the second sacrificial layer, including, filling the support, and forming a second element over the support and the substantially planar surface of the second sacrificial layer.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: December 18, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Michael G. Monroe, Eric L. Nikkel, Dennis M. Lazaroff
  • Patent number: 7071121
    Abstract: A ceramic film is useful as ion-conducting ceramics, electrodes, hard ceramic coatings, transparent conducting oxides, transparent semiconducting oxides, ferroelectric oxides, and dielectric oxides. The ceramic film may be produced from a liquid precursor solution.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: July 4, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David Punsalan, Dennis M. Lazaroff, Christopher C. Beatty
  • Patent number: 6940085
    Abstract: A memory structure that includes a first electrode, a second electrode, a third electrode, a control element disposed between the first electrode and the second electrode, and a memory storage element disposed between the second electrode and the third electrode. At least one of the control element and memory storage element is protected from contamination by at least one of the first electrode, second electrode and third electrode.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: September 6, 2005
    Assignee: Hewlett-Packard Development Company, I.P.
    Inventors: Peter Fricke, Andrew Koll, Dennis M. Lazaroff, Andrew L. Van Brocklin
  • Patent number: 6861277
    Abstract: A method of forming a MEMS device includes depositing a conductive material on a substructure, forming a first sacrificial layer over the conductive material, including forming a substantially planar surface of the first sacrificial layer, and forming a first element over the substantially planar surface of the first sacrificial layer, including communicating the first element with the conductive material through the first sacrificial layer. In addition, the method includes forming a second sacrificial layer over the first element, including forming a substantially planar surface of the second sacrificial layer, forming a support through the second sacrificial layer to the first element after forming the second sacrificial layer, including filling the support, and forming a second element over the support and the substantially planar surface of the second sacrificial layer.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: March 1, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Michael G. Monroe, Eric L. Nikkel, Dennis M. Lazaroff
  • Patent number: 6746892
    Abstract: A low heat loss and small contact area electrode structure for a phase change media memory device is disclosed. The memory device includes a composite electrode that includes a dielectric mandrel that is connected with a substrate and having a tapered shape that terminates at a vertex. An electrically conductive material conformally covers the dielectric mandrel and terminates at a tip. A first dielectric layer covers all of the composite electrode except an exposed portion of the composite electrode that is adjacent to the tip. A phase change media is in contact with the exposed portion. The exposed portion is only a small percentage of an overall surface area of the composite electrode so that a contact footprint between the exposed portion and the phase change media is small relative to a surface area of the phase change media and Joule heat transfer from the phase change media into the composite electrode is reduced.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: June 8, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Heon Lee, Dennis M. Lazaroff
  • Publication number: 20040077123
    Abstract: A low heat loss and small contact area electrode structure for a phase change media memory device is disclosed. The memory device includes a composite electrode that includes a dielectric mandrel that is connected with a substrate and having a tapered shape that terminates at a vertex. An electrically conductive material conformally covers the dielectric mandrel and terminates at a tip. A first dielectric layer covers all of the composite electrode except an exposed portion of the composite electrode that is adjacent to the tip. A phase change media is in contact with the exposed portion. The exposed portion is only a small percentage of an overall surface area of the composite electrode so that a contact footprint between the exposed portion and the phase change media is small relative to a surface area of the phase change media and Joule heat transfer from the phase change media into the composite electrode is reduced.
    Type: Application
    Filed: August 8, 2003
    Publication date: April 22, 2004
    Inventors: Heon Lee, Dennis M. Lazaroff
  • Patent number: 6670628
    Abstract: A low heat loss and small contact area electrode structure for a phase change media memory device is described. The memory device includes a composite electrode that includes a dielectric mandrel that is connected with a substrate and having a tapered shape that terminates at a vertex. An electrically conductive material conformally covers the dielectric mandrel and terminates at a tip. A first dielectric layer covers all of the composite electrode except an exposed portion of the composite electrode that is adjacent to the tip. A phase change media is in contact with the exposed portion. The exposed portion is only a small percentage of an overall surface area of the composite electrode so that a contact footprint between the exposed portion and the phase change media is small relative to a surface area of the phase change media and Joule heat transfer from the phase change media into the composite electrode is reduced.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: December 30, 2003
    Assignee: Hewlett-Packard Company, L.P.
    Inventors: Heon Lee, Dennis M. Lazaroff
  • Publication number: 20030189200
    Abstract: A low heat loss and small contact area electrode structure for a phase change media memory device is disclosed. The memory device includes a composite electrode that includes a dielectric mandrel that is connected with a substrate and having a tapered shape that terminates at a vertex. An electrically conductive material conformally covers the dielectric mandrel and terminates at a tip. A first dielectric layer covers all of the composite electrode except an exposed portion of the composite electrode that is adjacent to the tip. A phase change media is in contact with the exposed portion. The exposed portion is only a small percentage of an overall surface area of the composite electrode so that a contact footprint between the exposed portion and the phase change media is small relative to a surface area of the phase change media and Joule heat transfer from the phase change media into the composite electrode is reduced.
    Type: Application
    Filed: April 4, 2002
    Publication date: October 9, 2003
    Inventors: Heon Lee, Dennis M. Lazaroff
  • Publication number: 20030183868
    Abstract: A memory structure that includes a first electrode, a second electrode having an edge, a third electrode, a control element disposed between the first electrode and the second electrode, and memory storage element disposed between the edge of the second electrode and the third electrode.
    Type: Application
    Filed: April 2, 2002
    Publication date: October 2, 2003
    Inventors: Peter Fricke, Andrew Koll, Dennis M. Lazaroff, Andrew L. Van Brocklin
  • Publication number: 20030183867
    Abstract: A memory structure that includes a first electrode, a second electrode, a third electrode, a control element disposed between the first electrode and the second electrode, and a memory storage element disposed between the second electrode and the third electrode. At least one of the control element and memory storage element is protected from contamination by at least one of the first electrode, second electrode and third electrode.
    Type: Application
    Filed: April 2, 2002
    Publication date: October 2, 2003
    Inventors: Peter Fricke, Andrew Koll, Dennis M. Lazaroff, Andrew L. Van Brocklin