Patents by Inventor Rick L. Mohler

Rick L. Mohler has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6943810
    Abstract: A method, system and program product to verify a data preparation employed on a plurality of design layers that make up an article. An instruction algorithm representative of the data preparation is restated in terms of fundamental algorithms having corresponding graphical representations. The graphical representations can be combined to form a combination graphical representation that is used to determine whether the data preparation is correct. The invention can be used to verify correct data preparation of highly complex articles.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: September 13, 2005
    Assignee: International Business Machines Corporation
    Inventors: Mark C. H. Lamorey, Rick L. Mohler
  • Patent number: 6812122
    Abstract: Method for forming a first one time, voltage programmable logic element in a semiconductor substrate of first conductivity type, forming a first layer beneath a surface of the substrate, the first layer having a second conductivity type. A trench is formed through the surface and passing through the first layer. The trench comprises an interior surface, a dielectric material lining the interior surface and a conductive material filling the lined trench. The first logic element is configured so that a predetermined voltage or higher applied between the conductive material and the first layer causes a breakdown within a region of the trench.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: November 2, 2004
    Assignee: International Business Machines Corporation
    Inventors: Claude L. Bertin, Erik L. Hedberg, Russell J. Houghton, Max G. Levy, Rick L. Mohler, William R. Tonti, Wayne M. Trickle
  • Publication number: 20030189577
    Abstract: A method, system and program product to verify a data preparation employed on a plurality of design layers that make up an article. An instruction algorithm representative of the data preparation is restated in terms of fundamental algorithms having corresponding graphical representations. The graphical representations can be combined to form a combination graphical representation that is used to determine whether the data preparation is correct. The invention can be used to verify correct data preparation of highly complex articles.
    Type: Application
    Filed: February 6, 2002
    Publication date: October 9, 2003
    Inventors: Mark C. H. Lamorey, Rick L. Mohler
  • Publication number: 20020093074
    Abstract: A first one time, voltage programmable logic element is provided in a semiconductor substrate of first conductivity type that comprises a first layer beneath a surface of the substrate, the first layer having a second conductivity type; and a trench formed through the surface and passing through the first layer. The trench comprises an interior surface, a dielectric material lining the interior surface and a conductive material filling the lined trench. The first logic element is configured so that a predetermined voltage or higher applied between the conductive material and the first layer causes a breakdown within a region of the trench. A second one time, voltage programmable logic element is provided in a semiconductor substrate of first conductivity type that comprises a first layer formed in a surface of the substrate, the first layer having a second conductivity type; and a trench formed through the surface and passing through the first layer.
    Type: Application
    Filed: March 12, 2002
    Publication date: July 18, 2002
    Applicant: International Business Machines Corporation
    Inventors: Claude L. Bertin, Erik L. Hedberg, Russell J. Houghton, Max G. Levy, Rick L. Mohler, William R. Tonti, Wayne M. Trickle
  • Patent number: 6388305
    Abstract: A first one time, voltage programmable logic element is provided in a semiconductor substrate of first conductivity type that comprises a first layer beneath a surface of the substrate, the first layer having a second conductivity type; and a trench formed through the surface and passing through the first layer. The trench comprises an interior surface, a dielectric material lining the interior surface and a conductive material filling the lined trench. The first logic element is configured so that a predetermined voltage or higher applied between the conductive material and the first layer causes a breakdown within a region of the trench. A second one time, voltage programmable logic element is provided in a semiconductor substrate of first conductivity type that comprises a first layer formed in a surface of the substrate, the first layer having a second conductivity type; and a trench formed through the surface and passing through the first layer.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: May 14, 2002
    Assignee: International Business Machines Corporation
    Inventors: Claude L. Bertin, Erik L. Hedberg, Russell J. Houghton, Max G. Levy, Rick L. Mohler, William R. Tonti, Wayne M. Trickle
  • Patent number: 6258689
    Abstract: Trench capacitors are fabricated utilizing a method which results in a metallic nitride as a portion of a node electrode in a lower region of the trench. The metallic nitride-containing trench electrode exhibits reduced series resistance compared to conventional trench electrodes of similar dimensions, thereby enabling reduced ground rule memory cell layouts and/or reduced cell access time. The trench capacitors of the invention are especially useful as components of DRAM memory cells having various trench configuration and design.
    Type: Grant
    Filed: July 26, 2000
    Date of Patent: July 10, 2001
    Assignee: International Business Machines Corporation
    Inventors: Gary B. Bronner, Jeffrey P. Gambino, Jack A. Mandelman, Rick L. Mohler, Carl Radens, William R. Tonti
  • Patent number: 6022796
    Abstract: Corner conduction in a conduction channel of a field effect transistor is controlled by the geometrical configuration of the gate oxide and gate electrode at the sides of the conduction channel. Rounding the corners of the conduction channel or forming depressions at edges of trench structures such as deep or shallow trench isolation structures and/or trench capacitors develop recesses in a surface of a substrate at an interface of active areas and trench structures in which a portion of the gate oxide and gate electrode are formed so that the gate oxide and gate electrode effectively wrap around a portion of the conduction channel of the transistor. Particularly when such transistors are formed in accordance with sub-micron design rules, the geometry of the gate electrode allows the electric field in the conduction channel to be modified without angled implantation to regulate the effects of corner conduction in the conduction channel.
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: February 8, 2000
    Assignees: International Business Machines Corporation, Siemens Aktiengesellschaft
    Inventors: Wayne S. Berry, Juergen Faul, Wilfried Haensch, Rick L. Mohler
  • Patent number: 5998852
    Abstract: Corner conduction in a conduction channel of a field effect transistor is controlled by the geometrical configuration of the gate oxide and gate electrode at the sides of the conduction channel. Rounding the corners of the conduction channel or forming depressions at edges of trench structures such as deep or shallow trench isolation structures and/or trench capacitors develop recesses in a surface of a substrate at an interface of active areas and trench structures in which a portion of the gate oxide and gate electrode are formed so that the gate oxide and gate electrode effectively wrap around a portion of the conduction channel of the transistor. Particularly when such transistors are formed in accordance with sub-micron design rules, the geometry of the gate electrode allows the electric field in the conduction channel to be modified without angled implantation to regulate the effects of corner conduction in the conduction channel.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: December 7, 1999
    Assignee: International Business Machines Corporation
    Inventors: Wayne S. Berry, Juergen Faul, Wilfried Haensch, Rick L. Mohler
  • Patent number: 5858866
    Abstract: Corner conduction in a conduction channel of a field effect transistor is controlled by the geometrical configuration of the gate oxide and gate electrode at the sides of the conduction channel. Rounding the corners of the conduction channel or forming depressions at edges of trench structures such as deep or shallow trench isolation structures and/or trench capacitors develop recesses in a surface of a substrate at an interface of active areas and trench structures in which a portion of the gate oxide and gate electrode are formed so that the gate oxide and gate electrode effectively wrap around a portion of the conduction channel of the transistor. Particularly when such transistors are formed in accordance with sub-micron design rules, the geometry of the gate electrode allows the electric field in the conduction channel to be modified without angled implantation to regulate the effects of corner conduction in the conduction channel.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: January 12, 1999
    Assignee: International Business Machines Corportation
    Inventors: Wayne S. Berry, Juergen Faul, Wilfried Haensch, Rick L. Mohler
  • Patent number: 4983544
    Abstract: A method of forming a bridge contact between a source diffusion region of a transfer gate FET and a polysilicon-filled trench storage capacitor electrodes of the FET. A layer of titanium is evaporated at a temperature of approximately 370.degree. C., so that the titanium has a substantially columnar grain structure and a minimum of matrix material. The bottom portions of the columnar grains have a lateral length that approximates the lateral length of the dielectric separating the source diffusion from the poly-filled trench. Thus, upon sintering at 700.degree. C. in an N.sub.2 atmosphere, titanium silicide will form over all exposed silicon regions as well as the dielectric, without shorting the FET electrodes together.
    Type: Grant
    Filed: October 20, 1986
    Date of Patent: January 8, 1991
    Assignee: International Business Machines Corporation
    Inventors: Nicky C. Lu, Brian J. Machesney, Rick L. Mohler, Glen L. Miles, Chung-Yu Ting, Stephen D. Warley
  • Patent number: 4873205
    Abstract: A method for forming a silicide bridge bewteen a diffusion region and an adjacent poly-filled trench separated by a thin dielectric. Silicon is selectively grown over exposed silicon regions under conditions that provide controlled lateral growth over the thin dielectric without also permitting lateral growth over other insulator regions. A refractory metal layer is then deposited and sintered under conditions that limit lateral silicide growth, forming the bridge. This process avoids the random fails produced by previous processes while enhancing the compatibility of bridge formation with shallow junctions, without introducing extra masking steps or other process complexities.
    Type: Grant
    Filed: September 1, 1988
    Date of Patent: October 10, 1989
    Assignee: International Business Machines Corporation
    Inventors: Dale L. Critchlow, John K. DeBrosse, Rick L. Mohler, Wendell P. Noble, Jr., Paul C. Parries
  • Patent number: 4600445
    Abstract: A process is provided for making semiconductor structures, such as CMOS structures, which includes forming on a surface of a semiconductor body a layer from a material which is impervious to oxygen diffusion therethrough and patterning this layer to define the position of both the active and field isolation regions by partially removing this layer from the areas where the field isolation regions are to be formed. This oxygen impervious layer may be a dual dielectric structure consisting of a layer of silicon dioxide adjoining the semiconductor body and a layer of silicon nitride adjoining the silicon dioxide. The resulting structure includes an oxygen impervious layer which is used both for protecting all underlying oxidizing regions from oxidation and for defining the position of the active regions of the structure.
    Type: Grant
    Filed: September 14, 1984
    Date of Patent: July 15, 1986
    Assignee: International Business Machines Corporation
    Inventors: Robert A. Horr, Rick L. Mohler