Patents by Inventor Timothy G. Slater

Timothy G. Slater 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).

  • Patent number: 7816999
    Abstract: MEMS switches of varying configurations provide individually acutatable contacts. The MEMS switches are sealed by an improved anodic bonding technique.
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: October 19, 2010
    Assignee: Siverta, Inc.
    Inventors: Gary Joseph Pashby, Timothy G. Slater, Glenn Gottlieb
  • Patent number: 7123119
    Abstract: A MEMS switch includes a micro-machined monolithic layer (122) having, a seesaw (52), a pair of torsion bars (66a, 66b), and a frame (64). The frame (64) supports the seesaw (52) for rotation about an axis (68) established by the torsion bars (66a, 66b). Shorting bars (58a, 58b) at ends of the seesaw (52) connect across pairs of switch contacts (56a1, 56a2, 56b1, 56b2) carried on a substrate (174) bonded to one surface of the layer (122). A base (104) is also joined to a surface of the layer (122) opposite the substrate (174). The substrate (174) carries electrodes (54a, 54b) for applying forces to the seesaw (52) urging it to rotate about the axis (68). An electrical contact island (152) supported at a free end of a cantilever (166) ensures good electrical conduction between ground plates (162a, 162b) on the layer (122) and electrical conductors on the substrate (174).
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: October 17, 2006
    Assignee: Siverta, Inc.
    Inventors: Gary Joseph Pashby, Timothy G. Slater
  • Patent number: 7031045
    Abstract: A micro-mirror strip assembly having a plurality of two-dimensional micro-mirror structures with improved deflection and other characteristics is presented. In the micro-mirror structures, electrodes for electrostatic deflection are disposed on conical or quasi-conical entities that are machined, attached or molded into a substrate. The electrodes are quartered approximately parallel to or offset by 45 degrees from rotational axes to form quadrants. Torsion sensors are provided along the axes of rotation to control deflection of the quadrant deflection electrodes.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: April 18, 2006
    Inventors: Armand P. Neukermans, Timothy G. Slater, Marc R. Schuman, Jack D. Foster, Sam Calmes, Sateesh S. Bajikar, Arun Malhotra, Jane Ang, Jerry Hurst, John Green
  • Patent number: 6795602
    Abstract: A fiber optic switch (400) includes a fiber optic switching module (100) that receives and fixes ends (104) of optical fibers (106). The module (100) includes numerous reflective light beam deflectors (172) which may be selected as pairs for coupling a beam of light (108) between a pair of optical fibers (106). The module (100) also produces orientation signals from each deflector (172) which indicate its orientation. A portcard (406) included in the switch (400) supplies drive signals to the module (100) for orienting at least one deflector (172). The portcard (406) also receives the orientation signals produced by that deflector (172) together with coordinates that specify an orientation for the deflector (172). The portcard (406) compares the received coordinates with the orientation signals received from the deflector (172) and adjusts the drive signals supplied to the module (100) to reduce any difference between the received coordinates and the orientation signals.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: September 21, 2004
    Inventors: Armand P. Neukermans, Timothy G. Slater, Tyler L. Baughman, James P. Downing, John S. Forker, Gregory A. Reznick, Sam Calmes, Steven M. Clark, Jack D. Foster, Marc R. Schuman, Rajiv Ramaswami
  • Publication number: 20040150872
    Abstract: A micro-mirror strip assembly having a plurality of two-dimensional micro-mirror structures with improved deflection and other characteristics is presented. In the micro-mirror structures, electrodes for electrostatic deflection are disposed on conical or quasi-conical entities that are machined, attached or molded into a substrate. The electrodes are quartered approximately parallel to or offset by 45 degrees from rotational axes to form quadrants. Torsion sensors are provided along the axes of rotation to control deflection of the quadrant deflection electrodes.
    Type: Application
    Filed: October 28, 2003
    Publication date: August 5, 2004
    Applicant: Xros, Inc., a California corporation
    Inventors: Armand P. Neukermans, Timothy G. Slater, Marc R. Schuman, Jack D. Foster, Sam Calmes, Sateesh S. Bajikar, Arun Malhotra, Jane Ang, Jerry Hurst, John Green
  • Patent number: 6744550
    Abstract: A micro-mirror strip assembly having a plurality of two-dimensional micro-mirror structures with improved deflection and other characteristics is presented. In the micro-mirror structures, electrodes for electrostatic deflection are disposed on conical or quasi-conical entities that are machined, attached or molded into a substrate. The electrodes are quartered approximately parallel to or offset by 45 degrees from rotational axes to form quadrants. Torsion sensors are provided along the axes of rotation to control deflection of the quadrant deflection electrodes.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: June 1, 2004
    Assignee: Xros, Inc.
    Inventors: Armand P. Neukermans, Timothy G. Slater, Marc R. Schuman, Jack D. Foster, Sam Calmes, Sateesh S. Bajikar, Arun Malhotra, Jane Ang, Jerry Hurst, John Green
  • Patent number: 6694072
    Abstract: A fiber optic switch (400) includes a fiber optic switching module (100) that receives and fixes ends (104) of optical fibers (106). The module (100) includes numerous reflective light beam deflectors (172) arranged in a V-shape which may be selected as pairs for coupling a beam of light (108) between a pair of optical fibers (106). The module (100) also produces orientation signals from each deflector (172) which indicate its orientation. A portcard (406) supplies drive signals to the module (100) for orienting at least one deflector (172). The portcard (406) also receives the orientation signals produced by that deflector (172) together with coordinates that specify an orientation for the deflector (172). The portcard (406) compares the received coordinates with the orientation signals and adjusts the drive signals supplied to the module (100) to reduce any difference between the received coordinates and the orientation signals.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: February 17, 2004
    Inventors: Armand P. Neukermans, Steven M. Clark, Marc R. Schuman, Timothy G. Slater, Jack D. Foster, Sam Calmes
  • Patent number: 6608297
    Abstract: A scanner, through which a document moves while being scanned by a moving beam of light, includes a wheel that rotates responsive to document movement. The wheel includes a multi-sectioned optical encoder upon which the scanning beam of light impinges when in a position at which it does not impinge upon the document. The scanner also includes an optical detector which receives light that is not absorbed by the optical encoder sections. Thus, the optical detector generates an electrical signal that indicates document movement speed. A preferred embodiment the scanner includes a pair of cup-shaped wheels one of which carries the optical encoder that encircles an inner surface of the wheel adjacent to a lip thereof. An axle, also included in the preferred embodiment, spans between, is coupled to, and supports the wheels for rotation in unison about a longitudinal axis parallel to the axle.
    Type: Grant
    Filed: May 5, 2001
    Date of Patent: August 19, 2003
    Assignee: Xeros, Inc.
    Inventors: Armand P. Neukermans, James P. Downing, Timothy G. Slater
  • Publication number: 20030076576
    Abstract: A micro-mirror strip assembly having a plurality of two-dimensional micro-mirror structures with improved deflection and other characteristics is presented. In the micro-mirror structures, electrodes for electrostatic deflection are disposed on conical or quasi-conical entities that are machined, attached or molded into a substrate. The electrodes are quartered approximately parallel to or offset by 45 degrees from rotational axes to form quadrants. Torsion sensors are provided along the axes of rotation to control deflection of the quadrant deflection electrodes.
    Type: Application
    Filed: May 28, 2002
    Publication date: April 24, 2003
    Applicant: Xros, Inc.
    Inventors: Armand P. Neukermans, Timothy G. Slater, Marc R. Schuman, Jack D. Foster, Sam Calmes, Sateesh S. Bajikar, Arun Malhotra, Jane Ang, Jerry Hurst, John Green
  • Publication number: 20020164110
    Abstract: A fiber optic switch (400) includes a fiber optic switching module (100) that receives and fixes ends (104) of optical fibers (106). The module (100) includes numerous reflective light beam deflectors (172) which may be selected as pairs for coupling a beam of light (108) between a pair of optical fibers (106). The module (100) also produces orientation signals from each deflector (172) which indicate its orientation. A portcard (406) included in the switch (400) supplies drive signals to the module (100) for orienting at least one deflector (172). The portcard (406) also receives the orientation signals produced by that deflector (172) together with coordinates that specify an orientation for the deflector (172). The portcard (406) compares the received coordinates with the orientation signals received from the deflector (172) and adjusts the drive signals supplied to the module (100) to reduce any difference between the received coordinates and the orientation signals.
    Type: Application
    Filed: December 1, 2000
    Publication date: November 7, 2002
    Inventors: Arnold P. Neukermans, Timothy G. Slater, Tyler L. Baughman, James P. Dowing, John S. forker, Gregory A. Reznick, Sam Calmes, Steven M. Clark, Jack D. Foster, Marc R. Schuman, Rajiv Ramaswami
  • Patent number: 6467345
    Abstract: A method for operating a monolithic, integrated, micromachined structure that includes a reference member and one or more dynamic members. Each dynamic member is supported from the reference member, either directly or indirectly, by torsion hinges. Supported in this way, each dynamic member exhibits a plurality of vibrational modes. Preferably, the structure is micromachined to establishes specified relationships between various pairs of vibrational modes. The method also includes applying force to each dynamic member that urges the member to rotate out of a rest position to a fixed particular angle.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: October 22, 2002
    Assignee: XROS, Inc.
    Inventors: Armand P. Neukermans, Timothy G. Slater
  • Patent number: 6445844
    Abstract: A fiber optic switch includes a fiber optic switching module that receives and fixes ends of optical fibers. The module includes numerous reflective light beam deflectors which may be selected as pairs for coupling a beam of light between a pair of optical fibers. The module also produces orientation signals from each deflector which indicate its orientation. A portcard included in the switch supplies drive signals to the module for orienting at least one deflector. The portcard also receives the orientation signals produced by that deflector together with coordinates that specify an orientation for the deflector. The portcard compares the received coordinates with the orientation signals received from the deflector and adjusts the drive signals supplied to the module to reduce any difference between the received coordinates and the orientation signals. The switch also employs optical alignment to precisely orient pairs of deflectors coupling a beam of light between optical fibers.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: September 3, 2002
    Assignee: XROS, Inc.
    Inventors: Armand P. Neukermans, Timothy G. Slater, Tyler L. Baughman, James P. Downing, John S. Forker, Gregory A. Reznick, Sam Calmes, Steven M. Clark, Jack D. Foster, Marc R. Schuman, Rajiv Ramaswami
  • Patent number: 6426013
    Abstract: A method for fabricating an integrated, micromachined structure, such as a torsional scanner, that includes a reference member, such as a frame, a pair of torsion hinges, and a dynamic member that is coupled to the reference member by the torsion hinges. The method includes providing a wafer that has been formed from silicon material, and that has both a frontside and a backside. A membrane is formed in the wafer by etching a cavity in the silicon material from the backside of the wafer. The method also includes establishing a pattern that defines the mirror surface and the torsion hinges on the frontside of the wafer at the membrane formed therein. The frontside of the wafer is processed to form therein the dynamic member and the torsion hinges that support the dynamic member for rotation about the axis.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: July 30, 2002
    Assignee: XROS, Inc.
    Inventors: Armand P. Neukermans, Timothy G. Slater
  • Patent number: 6392220
    Abstract: A monolithically fabricated micromachined structure (52) couples a reference frame (56) to a dynamic plate (58) or second frame for rotation of the plate (58) or second frame with respect to the reference frame (56). Performance of torsional oscillators or scanners (52) benefits greatly by coupling the frame (56) to the plate (58) or second frame with torsional flexure hinges (56) rather than torsion bars (54). Appendages (122), tethers (142) or an improved drive circuit enhance electrostatic drive stability of torsional oscillators (52). Wide and thin torsional flexure hinges (96) and isotopically pure silicon enhance thermal conductivity between the plate (58) and the frame (56). Dampening material bridging slots (232) adjacent to torsional flexure hinges (96) drastically reduce the dynamic member's Q. A widened section (252) of narrow torsional flexure hinges (96) permit inclusion of a torsion sensor (108). A dynamic member (58) that includes an actuator portion (302) performs light beam switching.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: May 21, 2002
    Assignee: XROS, Inc.
    Inventors: Timothy G. Slater, Armand P. Neukermans
  • Publication number: 20020011558
    Abstract: A scanner, through which a document moves while being scanned by a moving beam of light, includes a wheel that rotates responsive to document movement. The wheel includes a multi-sectioned optical encoder upon which the scanning beam of light impinges when in a position at which it does not impinge upon the document. The scanner also includes an optical detector which receives light that is not absorbed by the optical encoder sections. Thus, the optical detector generates an electrical signal that indicates document movement speed. A preferred embodiment the scanner includes a pair of cup-shaped wheels one of which carries the optical encoder that encircles an inner surface of the wheel adjacent to a lip thereof. An axle, also included in the preferred embodiment, spans between, is coupled to, and supports the wheels for rotation in unison about a longitudinal axis parallel to the axle.
    Type: Application
    Filed: May 5, 2001
    Publication date: January 31, 2002
    Inventors: Armand P. Neukermans, James P. Downing, Timothy G. Slater
  • Publication number: 20010049959
    Abstract: A topographic head for profilometry and AFM supports a central paddle by coaxial torsion bars projecting inward from an outer frame. A tip projects from the paddle distal from the bars. The torsion bars include an integrated a paddle rotation sensor.
    Type: Application
    Filed: July 16, 2001
    Publication date: December 13, 2001
    Inventors: Armand P. Neukermans, Timothy G. Slater
  • Patent number: 6272907
    Abstract: A topographic head for profilometry and AFM supports a central paddle by coaxial torsion bars projecting inward from an outer frame. A tip projects from the paddle distal from the bars. The topographic head's frame, bars and paddle are monolithically fabricated by micromachining from a semiconductor wafer. The torsion bars preferably include an integrated paddle rotation sensor. The topographic head may be carried on an XYZ stage for X, Y and Z axis translation. In a preferred embodiment, the XYZ stage is also monolithically fabricated by micromachining from a semiconductor wafer with a fixed outer base that is coupled to an X-axis stage via a plurality of flexures, and with the X-axis stage supporting a Y-axis stage also via a plurality of flexures.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: August 14, 2001
    Assignee: XROS, Inc.
    Inventors: Armand P. Neukermans, Timothy G. Slater
  • Patent number: 6229139
    Abstract: A document transport for a scanner (100) has a flexible, elongated finger (226) disposed adjacent to a document (134), and a force applied to the finger (226) urges teeth (233) on the finger (226) into contact with the document (134) which urges the document (134) along a path through the scanner (100). A piezoelectric plate (222), which applies the force to the finger (226), requires only a small amount of electrical power. To traverse the scanner (100), a document (134) may also be manually fed along a guide (272). First and second speed-sensing detectors (276a and 276b), disposed along the path traversed by the document (134), permit the scanner (100) to determine a speed at which the manually fed document (134) traverses the scanner (100). To conserve electrical energy, the scanner (100) also includes a document-presence detector (274) for activating the scanner (100) when a document (134) to be scanned is present.
    Type: Grant
    Filed: April 11, 2000
    Date of Patent: May 8, 2001
    Assignee: Xros, Inc.
    Inventors: Armand P. Neukermans, James P. Downing, Timothy G. Slater
  • Patent number: 6224445
    Abstract: An actinic radiation source (20) includes an anode (36) upon which an electron beam from a cathode ray gun (24) impinges. The anode (36) includes a window area (52) formed by a silicon membrane. The electron beam upon striking the anode (36) permeates the window area (52) to penetrate into medium surrounding actinic radiation source (20). A method for making an anode (36) uses a substrate having both a thin first layer (44) and a thicker second layer (46) of single crystal silicon material between which is interposed a layer of etch stop material (48). The second layer (46) is anisotropically etched to the etch stop material (48) to define the electron beam window area (52) on the first layer (44). That portion of the etch stop layer (48) exposed by etching through, the second layer (46) is then removed. The anode (36) thus fabricated has a thin, monolithic, low-stress and defect-free silicon membrane electron beam window area (52) provided by the first layer of the substrate.
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: May 1, 2001
    Assignee: AIT
    Inventors: Armand P. Neukermans, Timothy G. Slater
  • Patent number: 6140755
    Abstract: An actinic radiation source (20) includes an anode (36) upon which an electron beam from a cathode ray gun (24) impinges. The anode (36) includes a window area (52) formed by a silicon membrane. The electron beam upon striking the anode (36) permeates the window area (52) to penetrate into medium surrounding actinic radiation source (20). A method for making an anode (36) uses a substrate having both a thin first layer (44) and a thicker second layer (46) of single crystal silicon material between which is interposed a layer of etch stop material (48). The second layer (46) is anisotropically etched to the etch stop material (48) to define the electron beam window area (52) on the first layer (44). That portion of the etch stop layer (48) exposed by etching through the second layer (46) is then removed. The anode (36) thus fabricated has a thin, monolithic, low-stress and defect-free silicon membrane electron beam window area (52) provided by the first layer of the substrate.
    Type: Grant
    Filed: June 11, 1997
    Date of Patent: October 31, 2000
    Assignee: American International Technologies, Inc.
    Inventors: Armand P. Neukermans, Timothy G. Slater