Patents by Inventor Steven E. Steen

Steven E. Steen 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: 7875528
    Abstract: A method, system and program product for bonding two circuitry-including semiconductor substrates, and a related stage, are disclosed. In one embodiment, a method of bonding two circuitry-including substrates includes: providing a first stage for holding a first circuitry-including substrate and a second stage for holding a second circuitry-including substrate; identifying an alignment mark on each substrate; determining a location and a topography of each alignment mark using laser diffraction; creating an alignment model for each substrate based on the location and topography the alignment mark thereon; and bonding the first and second circuitry-including substrates together while aligning the first and second substrate based on the alignment model.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: January 25, 2011
    Assignee: International Business Machines Corporation
    Inventors: Douglas C. La Tulipe, Jr., Steven E. Steen, Anna W. Topol
  • Patent number: 7773220
    Abstract: A process and system for determining alignment data for partially obscured features on wafers or chips when a wafer or chip is substantially coated by an over bump applied material, e.g. a resin or film, and using that data to align the wafers or chips for subsequent operations such as dicing or joining. Position data for alignment is produced by identifying a location of an at least partially obscured feature by varying the depth of focus upon a work piece to determine an SNR approximating a maximum value from an image captured by optical scanning. An SNR above a threshold value can be employed.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: August 10, 2010
    Assignee: International Business Machines Corporation
    Inventors: Claudius Feger, Nancy C. LaBianca, Steven E. Steen
  • Patent number: 7767385
    Abstract: A method of lithography is disclosed, which allows for independent resist process optimization of two or more exposure steps that are performed on a single resist layer. By providing for a separate post-exposure bake after each resist exposure step, pattern resolution for each exposure can be optimized. The method can generally be used with different lithographic techniques, and is well-suited for hybrid lithography. It has been applied to the fabrication of a device, in which the active area and the gate levels are defined in separate mask levels using hybrid lithography with an e-beam source and a 248 nm source respectively. Conditions for post-exposure bakes after the two exposure steps are independently adjusted to provide for optimized results.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: August 3, 2010
    Assignee: International Business Machines Corporation
    Inventors: Carl E. Larson, Sharee J. McNab, Steven E. Steen, Raman G. Viswanathan, Gregory M. Wallraff
  • Publication number: 20100133616
    Abstract: Methods of wiring to a transistor and a related transistor are disclosed. In one embodiment, the method includes a method of forming wiring to a transistor, the method comprising: forming a transistor on a semiconductor-on-insulator (SOI) substrate using masks that are mirror images of an intended layout, the forming including forming a gate and a source/drain region for each and a channel, the SOI substrate including a semiconductor-on-insulator (SOI) layer, a buried insulator layer and a silicon substrate; forming a dielectric layer over the transistor; bonding the dielectric layer to another substrate; removing the silicon substrate from the SOI substrate to the buried insulator layer; forming a contact to each of the source/drain region and the gate from a channel side of the gate; and forming at least one wiring to the contacts on the channel side of the gate.
    Type: Application
    Filed: February 8, 2010
    Publication date: June 3, 2010
    Inventors: David J. Frank, Douglas C. La Tulipe, JR., Steven E. Steen, Anna W. Topol
  • Patent number: 7666723
    Abstract: Methods of wiring to a transistor and a related transistor are disclosed. In one embodiment, the method includes a method of forming wiring to a transistor, the method comprising: forming a transistor on a semiconductor-on-insulator (SOI) substrate using masks that are mirror images of an intended layout, the forming including forming a gate and a source/drain region for each and a channel, the SOI substrate including a semiconductor-on-insulator (SOI) layer, a buried insulator layer and a silicon substrate; forming a dielectric layer over the transistor; bonding the dielectric layer to another substrate; removing the silicon substrate from the SOI substrate to the buried insulator layer; forming a contact to each of the source/drain region and the gate from a channel side of the gate; and forming at least one wiring to the contacts on the channel side of the gate.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: February 23, 2010
    Assignee: International Business Machines Corporation
    Inventors: David J. Frank, Douglas C. La Tulipe, Jr., Steven E. Steen, Anna W. Topol
  • Publication number: 20090259321
    Abstract: A system for virtual control of electronic laboratory equipment includes a local computer system. One or more items of electronic laboratory equipment are connected to the local computer system. Each item of electronic laboratory equipment has a physical control panel including one or more displays or controls. A virtual control panel generation unit generates a virtual control panel accessible from a remote computer system. The virtual control panel is substantially similar to the physical control panel in appearance. A command interpretation unit monitors interaction between the remote user and the virtual control panel and generates electronic laboratory equipment commands for exploiting the functionality of the electronic laboratory equipment.
    Type: Application
    Filed: April 15, 2008
    Publication date: October 15, 2009
    Inventors: Franco Stellari, Steven E. Steen, Peilin Song
  • Publication number: 20090251698
    Abstract: A process and system for determining alignment data for features on wafers or chips when a wafer or chip is substantially coated by an over bump applied material, e.g. a resin or film, and using that data to align the wafers or chips for subsequent operations such as dicing or joining. Position data for alignment is produced by identifying a location of an at least partially obscured feature by varying the depth of focus upon a work piece to determine an SNR approximating a maximum value from an image captured by optical scanning. An SNR above a threshold value can be employed.
    Type: Application
    Filed: April 2, 2008
    Publication date: October 8, 2009
    Inventors: Claudius Feger, Nancy C. LaBianca, Steven E. Steen
  • Publication number: 20090202952
    Abstract: A method of implementing sub-lithographic patterning of a semiconductor device includes forming a first set of patterned features with a single lithography step, the initial set of patterned features characterized by a linewidth and spacing therebetween; forming a first set of sidewall spacers on the first set of patterned features, and thereafter removing the first set of patterned features so as to define a second set of patterned features based on the geometry of the first set of sidewall spacers; and performing one or more additional iterations of forming subsequent sets of sidewall spacers on subsequent sets of patterned features, followed by removal of the subsequent sets of patterned features, wherein a given set of patterned features is based on the geometry of an associated set of sidewall spacers formed prior thereto, and wherein a final of the subsequent sets of patterned features is characterized by a sub-lithographic dimension.
    Type: Application
    Filed: February 11, 2008
    Publication date: August 13, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: David W. Abraham, Steven E. Steen, Nicholas C.M. Fuller, Francois Pagette
  • Patent number: 7488630
    Abstract: A method which is intended to facilitate and/or simplify the process of fabricating interlayer vias by selective modification of the FEOL film stack on a transfer wafer is provided. Specifically, the present invention provides a method in which two dimensional devices are prepared for subsequent integration in a third dimension at the transition between normal FEOL processes by using an existing interlayer contact mask to define regions in which layers of undesirable dielectrics and metal are selectively removed and refilled with a middle-of-the-line (MOL) compatible dielectric film. As presented, the inventive method is compatible with standard FEOL/MOL integration schemes, and it guarantees a homogeneous dielectric film stack specifically in areas where interlayer contacts are to be formed, thus allowing the option of a straightforward integration path, if desired.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: February 10, 2009
    Assignee: International Business Machines Corporation
    Inventors: David J. Frank, Douglas C. La Tulipe, Jr., Leathen Shi, Steven E. Steen, Anna W. Topol
  • Publication number: 20080217782
    Abstract: A method which is intended to facilitate and/or simplify the process of fabricating interlayer vias by selective modification of the FEOL film stack on a transfer wafer is provided. Specifically, the present invention provides a method in which two dimensional devices are prepared for subsequent integration in a third dimension at the transition between normal FEOL processes by using an existing interlayer contact mask to define regions in which layers of undesirable dielectrics and metal are selectively removed and refilled with a middle-of-the-line (MOL) compatible dielectric film. As presented, the inventive method is compatible with standard FEOL/MOL integration schemes, and it guarantees a homogeneous dielectric film stack specifically in areas where interlayer contacts are to be formed, thus allowing the option of a straightforward integration path, if desired.
    Type: Application
    Filed: March 6, 2007
    Publication date: September 11, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: David J. Frank, Douglas C. La Tulipe, Leathen Shi, Steven E. Steen, Anna W. Topol
  • Publication number: 20080206977
    Abstract: Methods of wiring to a transistor and a related transistor are disclosed. In one embodiment, the method includes a method of forming wiring to a transistor, the method comprising: forming a transistor on a semiconductor-on-insulator (SOI) substrate using masks that are mirror images of an intended layout, the forming including forming a gate and a source/drain region for each and a channel, the SOI substrate including a semiconductor-on-insulator (SOI) layer, a buried insulator layer and a silicon substrate; forming a dielectric layer over the transistor; bonding the dielectric layer to another substrate; removing the silicon substrate from the SOI substrate to the buried insulator layer; forming a contact to each of the source/drain region and the gate from a channel side of the gate; and forming at least one wiring to the contacts on the channel side of the gate.
    Type: Application
    Filed: February 22, 2007
    Publication date: August 28, 2008
    Inventors: David J. Frank, Douglas C. La Tulipe, Steven E. Steen, Anna W. Topol
  • Publication number: 20080203137
    Abstract: Bonding methods and a bonding system including monitoring are disclosed. In one embodiment, a method of monitoring bonding a first and second substrate includes: providing a plurality of piezoelectric sensors to a substrate mounting stage of a substrate bonding system; and monitoring a force change measured by the plurality of piezoelectric sensors induced by a bond front between the first and second substrate during bonding. This method allows real time monitoring of the bonding quality and adjustment of the bonding process parameters.
    Type: Application
    Filed: February 28, 2007
    Publication date: August 28, 2008
    Applicant: International Business Machines Corporation
    Inventors: Douglas C. La Tulipe, Steven E. Steen, Anna W. Topol
  • Publication number: 20080188036
    Abstract: A method, system and program product for bonding two circuitry-including semiconductor substrates, and a related stage, are disclosed. In one embodiment, a method of bonding two circuitry-including substrates includes: providing a first stage for holding a first circuitry-including substrate and a second stage for holding a second circuitry-including substrate; identifying an alignment mark on each substrate; determining a location and a topography of each alignment mark using laser diffraction; creating an alignment model for each substrate based on the location and topography the alignment mark thereon; and bonding the first and second circuitry-including substrates together while aligning the first and second substrate based on the alignment model.
    Type: Application
    Filed: February 7, 2007
    Publication date: August 7, 2008
    Inventors: Douglas C. La Tulipe, Steven E. Steen, Anna W. Topol