Patents Represented by Attorney David H. Sitrick
  • Patent number: 4689667
    Abstract: A method for preparing semiconductor components having a structure with sharply defined spatial distributions of dopant atoms with control over the degree of electrical activation of the dopant atoms. Control of spatial distribution and the degree of electrical activation of dopant atoms is achieved by implantation of dopant atoms along with rare gas atoms and another type of dopant atom within substantially the same preselected depth boundaries of a silicon or germanium substrate.
    Type: Grant
    Filed: June 11, 1985
    Date of Patent: August 25, 1987
    Assignee: Fairchild Semiconductor Corporation
    Inventor: Sheldon Aronowitz
  • Patent number: 4600611
    Abstract: An improved film carrier for affixing both two and three layer films used in tape automated bonding processes for the manufacture of semiconductor devices is disclosed. The carrier uses pegs to substantially match the sprocket holes in the film, thereby eliminating distortion in the film or the leads wires affixed in the film caused by prior art structures which force the film strips between holes to be bent in placing the film in the carrier.
    Type: Grant
    Filed: May 2, 1985
    Date of Patent: July 15, 1986
    Assignee: Fairchild Semiconductor Corporation
    Inventor: James W. Clark
  • Patent number: 4277827
    Abstract: A microprocessor based system for both creating and emulating control read only memories (CROM) for use in conjunction with programmable calculators and the like. The development system operates as two independent yet integrated systems. The system generates programmable calculator key codes from source code entered via a system computer keyboard, then maps the code into the system's read/write random access memory in the proper CROM format, and generates a gate placement tape from data stored in that memory. Additionally, the system emulates a CROM for real time interconnection to the programmable calculator. Thus, actual in calculator testing of the generated key codes is made possible prior to commitment of the code to mask and permanent manufactured CROMS.
    Type: Grant
    Filed: January 2, 1979
    Date of Patent: July 7, 1981
    Assignee: Texas Instruments Incorporated
    Inventors: George M. Carlson, Michael O'Hagan
  • Patent number: 4264963
    Abstract: Display information is stored in an array of segment latches, and by addressing these latches with common signals, the number of instructions necessary to operate a calculator in a display mode is greatly reduced. Thereby, the operation frequency of the calculator in the display only mode may be reduced, reducing the power consumption for CMOS devices.
    Type: Grant
    Filed: June 8, 1979
    Date of Patent: April 28, 1981
    Assignee: Texas Instruments Incorporated
    Inventor: Jerald G. Leach
  • Patent number: 4228574
    Abstract: An automated liquid crystal display (LCD) film fabrication process. Automation is facilitated by use of strips, preferably continuous, of plastic film on proposed surface of which corresponding electrode patterns are defined. Liquid crystal material and spacing means are introduced between the plastic strips which are sealed, preferably with the aid of sealing rings screen formed on one of the films, to define individual display units. Each unit has a volume of liquid crystal material enclosed between corresponding pairs of electrode patterns on the two strips.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: October 21, 1980
    Assignee: Texas Instruments Incorporated
    Inventors: Bobby G. Culley, Kishin Surtani