Patents Represented by Attorney W. J. Brady, III
  • Patent number: 5682060
    Abstract: A method of making an integrated circuit capacitor and/or resistor and the capacitor and/or resistor wherein the method comprises providing an electrically conductive region, preferably highly doped silicon, forming a first electrode of a capacitor, forming a layer of electrically insulating material, preferably silicon oxide, silicon nitride or a combination thereof, over the surface and forming a layer of a metal silicide, preferably titanium silicide, over the layer of electrically insulating material by forming a layer of polysilicon over the layer of electrically insulating material, forming a layer of a metal, preferably titanium, which forms an electrically conductive composition when reacted with polysilicon over the layer of polysilicon, reacting the metal with the polysilicon to form an electrically conductive layer therewith and removing any unreacted metal.
    Type: Grant
    Filed: April 24, 1995
    Date of Patent: October 28, 1997
    Assignee: Texas Instruments Incorporated
    Inventors: Yingsheng Tung, Robert E. Dixon
  • Patent number: 5506169
    Abstract: A process is disclosed for inhibiting lateral diffusion of dopants in a semiconductive material. At least one conductivity dependent region is formed in the semiconductor, and a blocking layer is provided in overlying relation with the conductivity dependent region. Interstitial sites or vacancies are introduced into the conductivity dependent region in accordance with the diffusion mechanism of a selected dopant, and dopant is diffused into the semiconductor in a direction that is substantially transverse to the semiconductor upper surface while inhibiting with the introduced interstitial sites or vacanies lateral diffusion of the dopant into the conductivity dependent region.
    Type: Grant
    Filed: October 20, 1994
    Date of Patent: April 9, 1996
    Assignee: Texas Instruments Incorporated
    Inventor: Richard L. Guldi
  • Patent number: 5491437
    Abstract: An amplifier circuit (10) is provided. Amplifier (10) has an amplifier stage (14) that is coupled to control an output stage (18). Output stage (18) includes a sourcing circuit (20) and a sinking circuit (22). Output stage (18) also includes a mirror circuit (42) that is coupled to an output of amplifier stage (14). Output stage (18) also includes a current balancing circuit (30) coupled to mirroring circuit (42) and sourcing circuit (20). Mirroring circuit (42) draws current from balancing circuit (30) in response to a first predetermined output from amplifier stage (14) such that balancing circuit (30) causes an insignificant current to flow in sourcing circuit (20). Thus amplifier (10) operates to sink current from an external load (12). Alternatively, mirroring circuit (42) may draw an insignificant current from balancing circuit (30) in response to a second predetermined output of the amplifier stage (14). This causes a significant current flow in sourcing circuit (20).
    Type: Grant
    Filed: December 1, 1994
    Date of Patent: February 13, 1996
    Assignee: Texas Instruments Incorporated
    Inventors: Gabriel A. Rincon, Nicolas Salamina, Marco Corsi