Patents Assigned to Mostek Corporation
  • Patent number: 4722913
    Abstract: In the manufacture of integrated circuits, an undoped wide band-gap semiconductor is used for the insulating layer to isolate the silicon substrate from the metal interconnection pattern. To provide conductive vias through the insulating layer for connection to the source and drain of the transistors of the circuit, the wide band-gap semiconductor is implanted with a dopant selectively in the portion overlying the source and drain for making the implanted portion of low resistivity and of the conductivity type of the source and drain. Preferably, carbon is the wide band-gap semiconductor and nitrogen is the dopant implanted.
    Type: Grant
    Filed: October 17, 1986
    Date of Patent: February 2, 1988
    Assignee: Thomson Components-Mostek Corporation
    Inventor: Robert O. Miller
  • Patent number: 4722060
    Abstract: A leadframe for an integrated circuit includes a set of individual leads temporarily connected in an array; each lead having an exterior portion shaped in a standard form and an interior portion shaped to form a standard array of contacts and to have the same spring constant for deflections perpendicular to the plane of the leadframe.
    Type: Grant
    Filed: March 22, 1984
    Date of Patent: January 26, 1988
    Assignee: Thomson Components-Mostek Corporation
    Inventors: Daniel J. Quinn, Robert H. Bond, Wayne A. Mulholland, Steven Swendrowski, Michael A. Olla, Jerry S. Cupples, Barbara R. Mozdzen, Linda S. Wilson, Linn Garrison
  • Patent number: 4716380
    Abstract: A differential amplifier (10) has two input terminals (16,18), an output terminal (20) together with power terminals (12,14). The differential amplifier comprises two or more stages with each stage having a pull-up transistor (22) and a pull-down transistor (26). The first input terminal (16) is connected to alternate stages of the amplifier (10) and the second input terminal (18) is connected to the remaining alternate stages of the amplifier (10). The gain of the various stages is determined by fabrication of the transistors, in particular, the geometries of the transistor channels. A state transition at an output terminal (20) is produced when the voltages at the input terminals (16,18) are approximately equal and the gains of the various stages are essentially equal. A state change at the output terminal (20) is caused to occur when there is a given voltage offset between the voltages at the input terminal (16,18) when the gains of the two sets of alternate stages of the amplifier (10) are made unequal.
    Type: Grant
    Filed: July 23, 1984
    Date of Patent: December 29, 1987
    Assignee: Thomson Components-Mostek Corporation
    Inventor: Robert J. Proebsting
  • Patent number: 4714840
    Abstract: The voltage gain of an MOS transistor inverter stage is made independent of the device threshold voltages and of channel lengths by making the length and width of the channel region of the upper load transistor equal to the length and width of the channel region of the lower driver transistor.
    Type: Grant
    Filed: December 30, 1982
    Date of Patent: December 22, 1987
    Assignee: Thomson Components - Mostek Corporation
    Inventor: Robert J. Proebsting
  • Patent number: 4714843
    Abstract: A circuit arrangement (13) for monitoring power supplies in N-channel CMOS devices, comprising elements for sampling of a bandgap voltage reference quantity (41), comparing the reference quantity to a monitored power supply voltage level (38), and compensating (49) for the offset voltage produced in the comparator element (31) conducting the comparison.
    Type: Grant
    Filed: August 30, 1985
    Date of Patent: December 22, 1987
    Assignee: Thomson Components-Mostek Corporation
    Inventor: Michael D. Smith
  • Patent number: 4685083
    Abstract: An improved nonvolatile memory has an adaptive system to regulate the charging current supplied to store data on nonvolatile storage nodes in order to provide acceptability low strain on the tunnel oxide and to compensate for process variations and change in the Fowler-Nordheim tunnel oxide transport characteristics caused by electron trapping over time.
    Type: Grant
    Filed: October 3, 1985
    Date of Patent: August 4, 1987
    Assignee: Thomson Components-Mostek Corporation
    Inventor: Horst Leuschner
  • Patent number: 4655134
    Abstract: A method for branding (labeling) a semiconductor chip package by warming the package prior to and subsequent to the branding resulting in a brand having greater clarity and permanency. A chip package is warmed to a temperature of about 95.degree. F. (35.degree. C.) to about 130.degree. F. (55.degree. C.) and an inked brand is applied to the warmed chip package. The branded chip package is maintained at a temperature of at least about 75.degree. F. (24.degree. C.) until the temperature is raised to a sufficient temperature to cure the branded chip package and then the branded chip package is cured.
    Type: Grant
    Filed: July 18, 1985
    Date of Patent: April 7, 1987
    Assignee: Thomson Components-Mostek Corporation
    Inventor: Charles C. Chen
  • Patent number: 4653860
    Abstract: A programable liquid crystal arrangement including parallel transparent plates and crossed, x-y addressable electrodes with a liquid crystal material disposed therebetween, in an optical system effective for fixing patterns or words of information in selected information storage media.
    Type: Grant
    Filed: January 7, 1985
    Date of Patent: March 31, 1987
    Assignee: Thomson Components-Mostek Corporation
    Inventor: Joe R. Hendrix
  • Patent number: 4651303
    Abstract: A volatile/non-volatile integrated circuit memory cell combines a non-volatile cell (110) connected to a volatile cell (105) at a volatile node (118), in which data recall is effected through a DC-stable arrangement of transistor (142), (145) and (146) that does not employ a capacitor to hold down the storage node.
    Type: Grant
    Filed: September 23, 1985
    Date of Patent: March 17, 1987
    Assignee: Thomson Components--Mostek Corporation
    Inventors: Donald R. Dias, Patrick R. Antaki
  • Patent number: 4651305
    Abstract: In a CMOS ROM memory arrangement, the use of the least significant column address bit to perform the dual function of even/odd bit line select and the disconnection of the selected bit line (17' and 17") from the sense amplifier (66) driven, in order to reduce its capacitive load, prior to the time of latching the information into the sense amplifier (66).
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: March 17, 1987
    Assignee: Thomson Components-Mostek Corporation
    Inventor: Harold L. Davis
  • Patent number: 4649471
    Abstract: A microcomputer includes I/O ports and registers which are mapped in memory space along with RAM and ROM and in which hardware invisible to the programmer performs a bus arbitration sequence to acquire an external bus when an off-chip reference requires the bus; and in which memory space that is used for on-chip references is recovered for use in external memory by manipulating bits in the memory address.
    Type: Grant
    Filed: March 1, 1983
    Date of Patent: March 10, 1987
    Assignee: Thomson Components-Mostek Corporation
    Inventors: Willard S. Briggs, Alan D. Gant, Parveen K. Gupta, Isadore S. Ferson
  • Patent number: 4646306
    Abstract: A high speed parity circuit uses a sequence of simplified exclusive-OR circuits responsive to data input terminals containing a data signal and its complement and terminating in a sense amplifier, together with an operating sequence in which the inputs to the sequence are grounded while the data lines are first brought high and then set to the correct data state to form a pair of separate paths through the sequence when no current flows, after which set-up operation an input voltage circuit raises the voltage on one of the paths smoothly, so that the sense amplifier can respond as soon as its input is large enough, without waiting for a settling time.
    Type: Grant
    Filed: December 26, 1984
    Date of Patent: February 24, 1987
    Assignee: Thomson Components - Mostek Corporation
    Inventors: Harold L. Davis, Douglas P. Sheppard
  • Patent number: 4645952
    Abstract: A high speed CMOS NOR gate employs a pair of cross-coupled inverters and a dual set of N-channel pulldown transistors (202, 203) at each of the nodes between the two inverters, together with small pullup transistor (205) on the output terminal that is permanently energized and a switchable large pullup transistor (220) that is a link between the second inverter output and the first inverter input.
    Type: Grant
    Filed: November 14, 1985
    Date of Patent: February 24, 1987
    Assignee: Thomson Components-Mostek Corporation
    Inventor: Hiep van Tran
  • Patent number: 4636988
    Abstract: A CMOS memory arrangement having each of a plurality of data lines connected to a plurality of bitlines, at least one of said datalines having a lesser number of bitlines in order to decrease capacitance in slower signal paths and thereby increase the operating speed of the memory. A multiple input sense amplifier is connected to the plurality of data lines.
    Type: Grant
    Filed: January 7, 1985
    Date of Patent: January 13, 1987
    Assignee: Thomson Components-Mostek Corporation
    Inventor: Hiep V. Tran
  • Patent number: 4634890
    Abstract: A transistor arrangement for clamping the output node of a semiconductor memory, including an inverter to parallel with a transmission gate for producing a differential output signal.
    Type: Grant
    Filed: September 6, 1984
    Date of Patent: January 6, 1987
    Assignee: Thomson Components-Mostek Corporation
    Inventor: Robert D. Lee
  • Patent number: 4627151
    Abstract: A system for the assembly and packaging of integrated circuits employs circuit dice that have contact pads in a standard array; a leadframe having leads configured to have the same spring constant; a method for removing selected dice from a wafer array under computer control; and a method of simultaneously bonding all leads to the die.
    Type: Grant
    Filed: March 22, 1984
    Date of Patent: December 9, 1986
    Assignee: Thomson Components-Mostek Corporation
    Inventors: Wayne A. Mulholland, Daniel J. Quinn, Robert H. Bond, Michael A. Olla
  • Patent number: 4627787
    Abstract: A method for removing selected integrated circuit dice from a wafer array of dice sequentially moves a striker above a tape to the underside of which the array is mounted and the knocks a die down from the array of dice into a receptacle for transport to further processing stages.
    Type: Grant
    Filed: March 22, 1984
    Date of Patent: December 9, 1986
    Assignee: Thomson Components-Mostek Corporation
    Inventors: Robert H. Bond, Steven Swendrowski, Michael A. Olla, Barry L. Morrison, Ricky Parkinson, Linn Garrison, John D. Pace
  • Patent number: 4627031
    Abstract: CMOS memory arrangement including a circuit for setting the dataline voltage at a predetermined bias level, the circuit comprising four MOS transistors, the first, second and third and the first and fourth thereof being connected in respective series from VCC to ground, the gates of the first and second transistors being connected to ground, the bias level being established between the second and third transistors with the gate of the third transistor being connected to the node therebetween.
    Type: Grant
    Filed: January 7, 1985
    Date of Patent: December 2, 1986
    Assignee: Thomson Components-Mostek Corporation
    Inventor: Hiep van Tran
  • Patent number: 4626713
    Abstract: A trip point clamping circuit for maintaining the voltage level at a node of connection to a sense arrangement including an inverter within defined bounds at the trip point of the inverter, the clamping circuit including a reference voltage, a source of similar current levels, a switch for turning the clamping circuit on and off, and a transistor responsive to the voltage level at said node of connection.
    Type: Grant
    Filed: September 6, 1984
    Date of Patent: December 2, 1986
    Assignee: Thomson Components-Mostek Corporation
    Inventor: Robert D. Lee
  • Patent number: D288922
    Type: Grant
    Filed: April 19, 1984
    Date of Patent: March 24, 1987
    Assignee: Thomson Components-Mostek Corporation
    Inventor: Michael A. Olla