With Other Type Core Patents (Class 365/92)
  • Patent number: 9018724
    Abstract: A method and apparatus for constructing MEMS devices is provided which employs a low cost molded housing that simultaneously provides precise and accurate alignment, mechanical protection, electrical connections and structural integrity for mounting optical and MEMS components. The package includes a MEMS die mounting surface, an optical component mounting surface and an optical imaging window monolithically fabricated with the MEMS die mounting surface in a predetermined orientation for providing alignment between the MEMS die and optical components. A MEMS adaptor plate is provided to facilitate connections of a MEMS die to external components.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: April 28, 2015
    Assignee: AdvancedMEMS LLP
    Inventors: Albert Ting, Daniel T. McCormick, Michael Rattner
  • Patent number: 5923583
    Abstract: A magnetic memory cell for storing binary encoded data and a memory constructed from these memory cells. The memory cell stores information in the direction of magnetization of a torroidal layer of magnetic material. The memory cell is constructed from a structure having a top electrode, a soft layer which includes a planar sheet of a soft magnetic material, a hard layer which includes a planar sheet of a hard magnetic material, and a bottom electrode, the soft and hard layers being sandwiched between the top and bottom electrodes. The various layers are torroids. The hard and soft materials are chosen such that the magnitude to the magnetic field needed to magnetize the hard magnetic material is greater than the magnitude of the magnetic field needed to magnetize the soft magnetic material. The memory cell also includes a write circuit that generates first and second magnetic fields.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: July 13, 1999
    Inventor: Richard Womack
  • Patent number: 5164916
    Abstract: A high-density memory module has thirty-two memory integrated circuit chips, sixteen decoupling capacitors, and two resistors mounted on a double-sided multi-layer printed wiring board having a series of edge terminals for connection to a motherboard. One side of the board has a first 2.times.8 rectangular matrix of the chips, and the other side of the board has a second 2.times.8 matrix of the chips. The chips are grouped into four "strings," each of which includes eight chips which receive the same row address strobe and column address strobe. Each string is selected by a unique row address strobe. All four strings share a common data bus. Two of the strings share a first column address strobe and a first address bus, and the other two strings share a second column address strobe and a second address bus, to facilitate four-way interleaved memory access.
    Type: Grant
    Filed: March 31, 1992
    Date of Patent: November 17, 1992
    Assignee: Digital Equipment Corporation
    Inventors: Andrew L. Wu, Derrick D. DaCosta, Stephen R. Coe, Donald C. Pierce, E. William Bruce, II
  • Patent number: 4903343
    Abstract: A new data storage device that includes one or more digital data storage elements, each element including a magnetic core, and an input addressing portion comprising a magnetic input addressing element for receiving at an input magnetic flux representing a data value and selectively coupling a flux to an output for transmission to a magnetic core in response to addressing flux generated therein. An output element magnetically coupled to a magnetic core detects transitions in magnetic flux in a magnetic core. In addition, the data storage element may further comprise an output addressing portion comprising a magnetic input addressing element for receiving at an input magnetic flux representative of flux in a magnetic core and selectively coupling a flux to an output in response to addressing flux generated therein.
    Type: Grant
    Filed: January 23, 1989
    Date of Patent: February 20, 1990
    Assignee: MRAM, Inc.
    Inventors: David B. Cope, Gary J. Spletter