Patents Assigned to Microelectronics & Computer Technology Corp.
  • Patent number: 5703435
    Abstract: A field emission cathode for use in flat panel displays is disclosed comprising a layer of conductive material and a layer of amorphic diamond film, functioning as a low effective work-function material, deposited over the conductive material to form emission sites. The emission sites each contain at least two sub-regions having differing electron affinities. Use of the cathode to form a computer screen is also disclosed along with the use of the cathode to form a fluorescent light source.
    Type: Grant
    Filed: May 23, 1996
    Date of Patent: December 30, 1997
    Assignee: Microelectronics & Computer Technology Corp.
    Inventors: Nalin Kumar, Chenggang Xie
  • Patent number: 5388068
    Abstract: Superconducting-semiconducting hybrid memories are disclosed. These superconducting-semiconducting hybrid memories utilize semiconductor circuits to store information, and either superconducting or semiconducting or combinations of superconducting and semiconducting circuits, with at least some superconducting circuitry used, to write and read information. The state of memory cells in the hybrid memories is determined by utilizing superconductor current sensing schemes to detect currents in the bit-line, thereby avoiding any bit-line charging delays and other problems associated with purely semiconductor memories. Additional features of the superconducting-semiconducting hybrid memories include wide margins, dense packing of memory cells, low power dissipation and fast access times. Interface curcuitry for converting superconducting signals to signals compatible with semiconductor circuits and for converting semiconductor signals to signals compatible with superconducting circuits is also disclosed.
    Type: Grant
    Filed: October 14, 1993
    Date of Patent: February 7, 1995
    Assignee: Microelectronics & Computer Technology Corp.
    Inventors: Uttam S. Ghoshal, Harry Kroger
  • Patent number: 5253328
    Abstract: A neural network content-addressable error-correcting memory system is disclosed including a plurality of hidden and visible processing units interconnected via a linear interconnection matrix. The network is symmetric and all self-connections are not present. All connections between processing units are present, except those connecting hidden units to other hidden units. Each visible unit is connected to each other visible unit and to each hidden unit. A mean field theory learning and retrieval algorithm is also provided. Bit patterns or code words are stored in the network via the learning algorithm. The retrieval algorithm retrieves error-corrected bit patterns in response to noisy or error-containing input bit patterns.
    Type: Grant
    Filed: November 17, 1989
    Date of Patent: October 12, 1993
    Assignee: Microelectronics & Computer Technology Corp.
    Inventor: Eric J. Hartman
  • Patent number: 5176744
    Abstract: Improved method and solutions for copper direct writing, particularly laser-induced direct writing, involving copper formate precursor solutions that contain a crystallization-inhibiting agent. The agent is selected from glycerol, citric acid, malic acid, malonic acid and glycine.
    Type: Grant
    Filed: August 9, 1991
    Date of Patent: January 5, 1993
    Assignee: Microelectronics Computer & Technology Corp.
    Inventor: Heinrich G. O. Muller
  • Patent number: 5021399
    Abstract: An improved method for preparing high temperature Bi-Sr-Ca-Cu-O superconductive films utilizing spray pyrolysis. The method can further include an additional annealing step to improve the electrical transport properties.
    Type: Grant
    Filed: March 10, 1989
    Date of Patent: June 4, 1991
    Assignee: Microelectronics & Computer Technology Corp.
    Inventors: Hsyh-Min Hsu, Ian Y. K. Yee
  • Patent number: 4927220
    Abstract: A photorefractive crystallyte array for image recording and signal processing is disclosed. The photorefractive crystallytes are configured as a two-dimensional array of selected position and spacing designed, for example, to coincide with the spatial frequency components of an associated optical image, such as a Fourier transform image, and to permit optical signal processing.
    Type: Grant
    Filed: December 31, 1987
    Date of Patent: May 22, 1990
    Assignee: Microelectronic & Computer Technology Corp.
    Inventors: Lambertus Hesselink, Steve R. Redfield