Patents by Inventor Dung Nguyen

Dung Nguyen 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: 6921555
    Abstract: An apparatus and method for sequential and isolated processing of a workpiece comprises a two compartment chamber and a mechanism to transfer the workpiece from a first compartment to a second compartment by rotating the workpiece on a workpiece mover through an internal pathway. The transfer mechanism comprises two doors coupled to the workpiece mover to seal the internal pathway between the first and second compartments so that the two compartments are isolated and the workpiece can be processed sequentially and in isolation. The apparatus further comprises components to enable the processing of a workpiece. The preferred method of processing a workpiece is to deposit or adsorb a thin layer in the first compartment and then transfer by rotating the workpiece on the workpiece mover to the second compartment for further processing.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: July 26, 2005
    Assignee: Tegal Corporation
    Inventors: Tue Nguyen, Tai Dung Nguyen, Craig Alan Bercaw
  • Patent number: 6919101
    Abstract: A method for improving the adhesion of an impermeable film on a porous low-k dielectric film in an interconnect structure is disclosed. The method provides an in-situ annealing step before the deposition of the impermeable film to release the volatile trapped molecules such as water, alcohol, HCl, and HF vapor, inside the pores of the porous low-k dielectric film. The method also provides an in-situ deposition step of the impermeable film right after the deposition of the porous low dielectric film without exposure to an atmosphere containing trappable molecules. The method further provides an in-situ deposition step of the impermeable film right after the removal a portion of the porous low-k dielectric film without exposure to an atmosphere containing trappable molecules. By the removal of all trapped molecules inside the porous low-k dielectric film, the adhesion between the deposited impermeable film and the low-k dielectric film is improved.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: July 19, 2005
    Assignee: Tegal Corporation
    Inventors: Zhihong Zhang, Tai Dung Nguyen, Tue Nguyen
  • Publication number: 20050114603
    Abstract: An instruction buffer and a method of buffering instructions.
    Type: Application
    Filed: November 24, 2003
    Publication date: May 26, 2005
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Taqi Buti, Brian Curran, Maureen Delaney, Saiful Islam, Zakaria Khwaja, Jafar Nahidi, Dung Nguyen
  • Patent number: 6858085
    Abstract: An apparatus for sequential and isolated processing of a workpiece comprises a two compartment chamber and a mechanism to transfer the workpiece from one compartment to the other compartment. The transfer mechanism comprises two doors that seal the pathway between the two compartments between movement so that the two compartments are isolated and the workpiece can be processed sequentially and isolatedly in each compartment. The apparatus further comprises components to enable the processing of a workpiece: a delivery system to delivery precursor, a plasma source to generate a plasma and a vacuum pump to maintain a sub-atmospheric pressure. The preferred method of processing a workpiece is to deposit or adsorb a thin layer in the first compartment and then to transfer the workpiece to the second compartment for a reaction or a plasma reaction on the existing thin layer.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: February 22, 2005
    Assignee: Tegal Corporation
    Inventors: Tue Nguyen, Tai Dung Nguyen, Craig Alan Bercaw
  • Publication number: 20050029052
    Abstract: Systems and techniques for more efficient checkout are described. A triangular carousel having a relatively small footprint is employed proximate a bar code scanner and point of sale (POS) terminal so that a checker can efficiently load scanned items into bags, and a customer on the other side of the checkout counter and proximate the bar code scanner can also efficiently load filled bags into his or her shopping cart.
    Type: Application
    Filed: September 9, 2004
    Publication date: February 10, 2005
    Applicant: Wal-Mart Stories, Inc.
    Inventor: Dung Nguyen
  • Publication number: 20040224505
    Abstract: A process to deposit a thin film by chemical vapor deposition includes evacuating a chamber of gases; exposing a device to a gaseous first reactant, wherein the first reactant deposits on the device to form the thin film having a plurality of monolayers in thickness; evacuating the chamber of gases; exposing the device, coated with the first reactant, to a gaseous second reactant under a plasma treatment, wherein the thin film is treated by the first reactant; and repeating the previous steps.
    Type: Application
    Filed: March 1, 2004
    Publication date: November 11, 2004
    Applicant: Tegal Corporation
    Inventors: Tue Nguyen, Tai Dung Nguyen
  • Patent number: 6793043
    Abstract: Systems and techniques for more efficient checkout are described. A triangular carousel having a relatively small footprint is employed proximate a bar code scanner and point of sale (POS) terminal so that a checker can efficiently load scanned items into bags, and a customer on the other side of the checkout counter and proximate the bar code scanner can also efficiently load filled bags into his or her shopping cart.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: September 21, 2004
    Assignee: Wal-Mart Stores, Inc.
    Inventor: Dung Nguyen
  • Publication number: 20040151844
    Abstract: A method for protecting an organic polymer underlayer during a plasma assisted process of depositing a subsequent film on the organic polymer underlayer is disclosed. The method provides the deposition of a protective continuous layer using organic polymer damage-free technique in order to not damage the organic polymer underlayer and to protect the organic polymer underlayer during the plasma assisted process of depositing a subsequent film. The organic polymer damage-free technique is a non-plasma process, using only thermal energy and chemical reactions to deposit the continuous layer. The organic polymer damage-free technique can also be a plasma assisted process using a reduced plasma power low enough in order to not damage the organic polymer underlayer.
    Type: Application
    Filed: February 4, 2003
    Publication date: August 5, 2004
    Inventors: Zhihong Zhang, Tai Dung Nguyen, Tue Nguyen
  • Publication number: 20040149686
    Abstract: A method for improving the adhesion of a impermeable film on a porous low-k dielectric film in an interconnect structure is disclosed. The method provides an in-situ annealing step before the deposition of the impermeable film to release the volatile trapped molecules such as water, alcohol, HCl, HF vapor, inside the pores of the porous low-k dielectric film. The method also provides an in-situ deposition step of the impermeable film right after the deposition of the porous low dielectric film without exposure to an atmosphere containing trappable molecules. The method further provides an in-situ deposition step of the impermeable film right after the removal a portion of the porous low-k dielectric film without exposure to an atmosphere containing trappable molecules. By the removal of all trapped molecules inside the porous low-k dielectric film, the adhesion between the deposited impermeable film and the low-k dielectric film is improved.
    Type: Application
    Filed: February 4, 2003
    Publication date: August 5, 2004
    Inventors: Zhihong Zhang, Tai Dung Nguyen, Tue Nguyen
  • Publication number: 20040151845
    Abstract: A hybrid deposition process of CVD and ALD, called NanoLayer Deposition (NLD) is provided. The nanolayer deposition process is a cyclic sequential deposition process, comprising the first step of introducing a first plurality of precursors to deposit a thin film with the deposition process not self limiting, then a second step of purging the first set of precursors and a third step of introducing a second plurality of precursors to modify the deposited thin film. The deposition step in the NLD process using the first set of precursors is not self limiting and is a function of substrate temperature and process time. The second set of precursors modifies the already deposited film characteristics. The second set of precursors can treat the deposited film such as a modification of film composition, a doping or a removal of impurities from the deposited film. The second set of precursors can also deposit another layer on the deposited film.
    Type: Application
    Filed: February 4, 2003
    Publication date: August 5, 2004
    Inventors: Tue Nguyen, Tai Dung Nguyen
  • Patent number: 6756318
    Abstract: A process to deposit a thin film by chemical vapor deposition includes evacuating a chamber of gases; exposing a device to a gaseous first reactant, wherein the first reactant deposits on the device to form the thin film having a plurality of monolayers in thickness; evacuating the chamber of gases; exposing the device, coated with the first reactant, to a gaseous second reactant under a plasma treatment, wherein the thin film is treated by the first reactant; and repeating the previous steps.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: June 29, 2004
    Assignee: Tegal Corporation
    Inventors: Tue Nguyen, Tai Dung Nguyen
  • Publication number: 20040094620
    Abstract: Systems and methods are described for pre-scanning retail merchandise. A mobile scanning station is described that includes a frame, and a pair of arms mounted to the frame, positioned to hold an open bag for receiving pre-scanned items. A platform is mounted to the frame, positioned under the pair of arms for providing a supporting surface for items contained in an open bag held by the pair of arms. The frame further includes an EAS deactivator support for holding an EAS deactivator for deactivating EAS tags on pre-scanned items before they are placed in the open bag.
    Type: Application
    Filed: August 15, 2003
    Publication date: May 20, 2004
    Applicant: Wal-Mart Stores, Inc.
    Inventors: Dung Nguyen, Aime V. Rodriguez
  • Publication number: 20040058293
    Abstract: An apparatus for sequential processing of a workpiece comprises an assembly line processing system. The apparatus comprises multiple workpieces moving in an assembly line fashion under multiple process stations. The multiple process stations provide different processes onto the workpieces for a sequential processing of the workpieces. The sequential processing action is carried out by the movement of the workpieces under the various process stations.
    Type: Application
    Filed: August 6, 2002
    Publication date: March 25, 2004
    Inventors: Tue Nguyen, Tai Dung Nguyen, Craig Alan Bercaw
  • Patent number: 6705816
    Abstract: A wafer transfer apparatus provides a rotational and translational motions using only one stationary motor drive. The apparatus includes a drive assembly and a transport arm assembly. The transport arm assembly includes a transport arm rotatably attached to a linking arm. The linking arm is fixedly attached to a sleeve, which is rotatably attached to a housing. A shaft runs axially through the sleeve, and coupled with the transport arm so that rotation of the sleeve relative to the shaft causes the movement of the transport arm assembly. A locking mechanism allows the shaft to be locked to the housing or to the sleeve. A motor fixedly attached to the housing and operational attached to the sleeve. When the shaft is locked to the sleeve, the motor rotates the sleeve and the shaft simultaneously, which effects rotation of the transfer arm relative to the housing.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: March 16, 2004
    Assignee: Waypoint Technologies
    Inventors: Tue Nguyen, Tai Dung Nguyen
  • Publication number: 20040026371
    Abstract: An apparatus for sequential and isolated processing of a workpiece comprises a two compartment chamber and a mechanism to transfer the workpiece from one compartment to the other compartment. The transfer mechanism comprises two doors to seal the pathway between the two compartments between movement so that the two compartments are isolated and the workpiece can be processed sequentially and isolatedly in each compartment. The apparatus further comprises components to enable the processing of a workpiece: a delivery system to delivery precursor, a plasma source to generate a plasma and a vacuum pump to maintain a sub-atmospheric pressure. The preferred method of processing a workpiece is to deposit or adsorb a thin layer in the first compartment and then transfer to the second compartment for a reaction or a plasma reaction on the existing thin layer.
    Type: Application
    Filed: August 6, 2002
    Publication date: February 12, 2004
    Inventors: Tue Nguyen, Tai Dung Nguyen, Craig Alan Bercaw
  • Publication number: 20040026374
    Abstract: An apparatus for sequential processing of a workpiece comprises an assembly line processing system. The apparatus comprises multiple workpieces moving in an assembly line fashion under multiple process stations. The multiple process stations provide different processes onto the workpieces for a sequential processing of the workpieces. The sequential processing action is carried out by the movement of the workpieces under the various process stations.
    Type: Application
    Filed: August 6, 2002
    Publication date: February 12, 2004
    Inventors: Tue Nguyen, Tai Dung Nguyen, Craig Alan Bercaw
  • Patent number: 6670266
    Abstract: A method has been provided for improving the adhesion of copper to a nitrided metal diffusion barrier material, such as TiN, in an integrated circuit substrate. The method provided a multilayered diffusion barrier structure, comprising a conducting diffusion barrier layer and a poorly conducting adhesion-promoter layer in selected locations. The formation of a poorly conducting adhesion-promoter layer in selected locations permits the optimization of both contact resistance and adhesion property. The poorly conducting adhesion-promoter layer is formed either by the partial incorporation of oxygen into the diffusion barrier or by deposition in an oxygen ambient.
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: December 30, 2003
    Assignee: Simplus Systems Corporation
    Inventors: Tue Nguyen, Tai Dung Nguyen
  • Patent number: 6619546
    Abstract: A mobile scanning station for pre-scanning retail merchandise includes a frame, and a pair of arms mounted to the frame, positioned to hold an open bag for receiving pre-scanned items. A platform is mounted to the frame, positioned under the pair of arms for providing a supporting surface for items contained in an open bag held by the pair of arms. The frame further includes an EAS deactivator support for holding an EAS deactivator for deactivating EAS tags on pre-scanned items before they are placed in the open bag. In a method for pre-scanning retail merchandise, a mobile pre-scanning station is positioned proximate to a shopping cart of a retail customer waiting in a checkout line, and a transaction identifier card is scanned. Bar-coded items from the customer's shopping cart are then scanned. If the scanned item has an EAS tap, an EAS deactivator seated in the mobile pre-scanning station is used to deactivate the EAS tag.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: September 16, 2003
    Assignee: Wal-Mart Stores, Inc.
    Inventors: Dung Nguyen, Aime V. Rodriguez
  • Patent number: 6610169
    Abstract: Systems and methods are disclosed to perform semiconductor processing with a process chamber; a flash lamp adapted to be repetitively triggered; and a controller coupled to the control input of the flash lamp to trigger the flash lamp. The system can deploy a solid state plasma source in parallel with the flash lamp in wafer processing.
    Type: Grant
    Filed: April 21, 2001
    Date of Patent: August 26, 2003
    Assignee: Simplus Systems Corporation
    Inventors: Tue Nguyen, Tai Dung Nguyen, Craig Alan Bercaw
  • Publication number: 20030122847
    Abstract: A dithering system yielding two-dimensional dither functioning is implemented without line memories. For each primary input color, a feedback loop outputs an color input signal plus error that can be preset to different values. The desired result is that vertical artifacts on a display formed from the output signals are relocated to different locations on consecutive display lines. If signal magnitude from the feedback loop output exceeds the magnitude of the video system creating the display, signal magnitude is preset to a value representing error at athe start of the display line.
    Type: Application
    Filed: November 5, 2002
    Publication date: July 3, 2003
    Inventors: Timothy J. Donovan, Dung Nguyen, Meng Long