Patents by Inventor Jaim Nulman

Jaim Nulman 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).

  • Publication number: 20020188414
    Abstract: Systems, methods and computer program products are provided for calibrating integrated the inspection tools of one or more processing tools. In a first aspect, a system is provided that includes (1) a processing tool adapted to process substrates; (2) an integrated inspection tool coupled to the processing tool; and (3) a controller adapted to communicate with the integrated inspection tool. The controller includes computer program code adapted to receive a first result generated by inspecting a production substrate with a stand-alone inspection tool, and to receive a second result generated by inspecting the production substrate with the integrated inspection tool. The computer controller further includes computer program code adapted to calibrate the integrated inspection tool based on the first and second results. Numerous other systems are provided, as are methods and computer program products.
    Type: Application
    Filed: June 12, 2001
    Publication date: December 12, 2002
    Applicant: Applied Materials, Inc.
    Inventor: Jaim Nulman
  • Publication number: 20020187024
    Abstract: An inventive loading and storage station has a plurality of storage shelves positioned above one or more docking stations. Each storage shelf is configured to store a substrate carrier. A factory load location is positioned below the docking station, and a robot having an end effector coupled to a support structure that comprises a vertical guide and a horizontal guide is configured so that the end effector may move horizontally and vertically among the docking station, the plurality of storage shelves and the factory load location so as to transport substrate carriers thereamong. In one aspect the plurality of storage shelves and at least one of the robot's vertical and horizontal guides are fixedly coupled to a support frame so as to create a modular unit. In a further aspect a conveyor is positioned below the docking station and is adapted to transport substrate carriers to the factory load location. In this aspect the conveyor and the robot's horizontal guide may extend along parallel lines.
    Type: Application
    Filed: June 12, 2001
    Publication date: December 12, 2002
    Applicant: Applied Materials, Inc.
    Inventor: Jaim Nulman
  • Publication number: 20020144901
    Abstract: A sputtering coil for a plasma chamber in a semiconductor fabrication system is provided. The sputtering coil couples energy into a plasma and also provides a source of sputtering material to be sputtered onto a workpiece from the coil to supplement material being sputtered from a target onto the workpiece. Alternatively a plurality of coils may be provided, one primarily for coupling energy into the plasma and the other primarily for providing a supplemental source of sputtering material to be sputtered on the workpiece.
    Type: Application
    Filed: January 17, 2002
    Publication date: October 10, 2002
    Inventors: Jaim Nulman, Sergio Edelstein, Mani Subramani, Zheng Xu, Howard Grunes, Avi Tepman, John Forster, Praburam Gopalraja
  • Patent number: 6456894
    Abstract: The present invention provides a manufacturing environment (110) for a wafer fab, and an SPC environment (112) for setting control limits and acquiring metrology data of production runs. A computation environment (114) processes the SPC data, which are then analyzed in an analysis environment (116). An MES environment (118) evaluates the analysis and automatically executes a process intervention if the process is outside the control limits. Additionally, the present invention provides for an electrical power management system, a spare parts inventory and scheduling system and a wafer fab efficiency system. These systems employ algorithms (735, 1135 and 1335).
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: September 24, 2002
    Assignee: Applied Materials, Inc.
    Inventor: Jaim Nulman
  • Patent number: 6455921
    Abstract: An electrically conductive plug on a semiconductor workpiece. A dielectric layer is deposited on the workpiece, and a cavity is etched in the dielectric. An etchant-resistant material is deposited on the wall of the cavity adjacent the cavity mouth so as to form an inwardly-extending lateral protrusion, the etchant-resistant material being resistant to etching by at least one etchant substance which etches said electrically conductive material substantially faster than it etches the etchant resistant material. The cavity is filled by an electrically conductive material. In another aspect of the method, the etchant-resistant material can be omitted. Instead, upper and lower portions of the cavity are etched anisotropically and isotropically, respectively, so as to form a lower portion of the cavity that is wider than the upper portion.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: September 24, 2002
    Assignee: Applied Materials, Inc.
    Inventors: Seshadri Ramaswami, Jaim Nulman
  • Publication number: 20020130651
    Abstract: A sensor enables simultaneous or sequential eddy current and optical reflectance measurements of conducting film by providing an eddy current inspection coil and a first and a second optical fiber extending axially through the coil. The eddy current inspection coil is excited by a radio frequency generator and induces eddy currents in the conducting film which are sensed using a detector. The conducting film is illuminated by a first optical fiber, and light which is reflected from the conducting film is transmitted by a second optical fiber to a detector. In the case of opaque conducting films, the eddy current sensor measures sheet resistance which is determinative of film thickness. In opaque conducting films, optical reflectance measurements are indicative of characteristics such as grain size and surface oxidation. Eddy current sensing is indicative of sheet resistance which correlates to grain size and film thickness.
    Type: Application
    Filed: March 19, 2001
    Publication date: September 19, 2002
    Applicant: Applied Materials, Inc.
    Inventors: Moshe Sarfaty, Ramaswamy Sreenivasan, Jaim Nulman
  • Publication number: 20020075478
    Abstract: The invention provides an inspection device that may inspect (check alignment of or detect defects on) a wafer and that may inspect a wafer while a wafer handler supplies wafers to and/or extracts wafers from the inspection device. The inspection device may include a rotatable wafer platform having a wafer supporting surface, a wafer stage and a lift/lower mechanism coupled to the wafer. The wafer stage has an upper wafer support and a lower wafer support.
    Type: Application
    Filed: December 18, 2000
    Publication date: June 20, 2002
    Applicant: Applied Materials, Inc.
    Inventors: Jaim Nulman, Manoocher Birang
  • Patent number: 6408220
    Abstract: The present invention provides a manufacturing environment (110) for a wafer fab, and an SPC environment (112) for setting control limits and acquiring metrology data of production runs. A computation environment (114) processes the SPC data, which are then analyzed in an analysis environment (116). An MES environment (118) evaluates the analysis and automatically executes a process intervention if the process is outside the control limits. Additionally, the present invention provides for an electrical power management system, a spare parts inventory and scheduling system and a wafer fab efficiency system. These systems employ algorithms (735, 1135 and 1335).
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: June 18, 2002
    Assignee: Applied Materials, Inc.
    Inventor: Jaim Nulman
  • Patent number: 6368469
    Abstract: A sputtering coil for a plasma chamber in a semiconductor fabrication system is provided. The sputtering coil couples energy into a plasma and also provides a source of sputtering material to be sputtered onto a workpiece from the coil to supplement material being sputtered from a target onto the workpiece. Alternatively a plurality of coils may be provided, one primarily for coupling energy into the plasma and the other primarily for providing a supplemental source of sputtering material to be sputtered on the workpiece.
    Type: Grant
    Filed: May 6, 1997
    Date of Patent: April 9, 2002
    Assignee: Applied Materials, Inc.
    Inventors: Jaim Nulman, Sergio Edelstein, Mani Subramani, Zheng Xu, Howard Grunes, Avi Tepman, John Forster, Praburam Gopalraja
  • Patent number: 6361618
    Abstract: Methods and Apparatus for forming and maintaining high vacuum environments are provided. In one aspect, a method is provided for forming and maintaining a vacuum in a processing chamber including evacuating the processing chamber with a vacuum pump to a first chamber pressure and removing gaseous material from the chamber volume with a getter material to reduce the chamber pressure to a second chamber pressure less than the first chamber pressure. The method may further include providing a substrate in the processing chamber and raising the temperature of the substrate and/or processing chamber to a temperature sufficient to outgas contaminants in the substrate and processing chamber components.
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: March 26, 2002
    Assignee: Applied Materials, Inc.
    Inventor: Jaim Nulman
  • Publication number: 20020023329
    Abstract: The present invention provides a manufacturing environment (110) for a wafer fab, and an SPC environment (112) for setting control limits and acquiring metrology data of production runs. A computation environment (114) processes the SPC data, which are then analyzed in an analysis environment (116). An MES environment (118) evaluates the analysis and automatically executes a process intervention if the process is outside the control limits. Additionally, the present invention provides for an electrical power management system, a spare parts inventory and scheduling system and a wafer fab efficiency system. These systems employ algorithms (735, 1135 and 1335).
    Type: Application
    Filed: October 4, 2001
    Publication date: February 28, 2002
    Applicant: Applied Materials, Inc.
    Inventor: Jaim Nulman
  • Patent number: 6303395
    Abstract: The present invention provides a manufacturing environment (110) for a wafer fab, and an SPC environment (112) for setting control limits and acquiring metrology data of production runs. A computation environment (114) processes the SPC data, which are then analyzed in an analysis environment (116). An MES environment (118) evaluates the analysis and automatically executes a process intervention if the process is outside the control limits. Additionally, the present invention provides for an electrical power management system, a spare parts inventory and scheduling system and a wafer fab efficiency system. These systems employ algorithms (735, 1135 and 1335).
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: October 16, 2001
    Assignee: Applied Materials, Inc.
    Inventor: Jaim Nulman
  • Patent number: 6231725
    Abstract: An apparatus for sputtering material onto a workpiece, composed of: a chamber; a first target disposed in the chamber for sputtering material onto the workpiece; a holder for holding the workpiece in the chamber; a plasma generation area between the target and the holder; a coil for inductively coupling energy into the plasma generation area for generating and sustaining a plasma in the plasma generation area; and a second target disposed in the chamber below the first target and above the coil for sputtering material onto the workpiece.
    Type: Grant
    Filed: August 4, 1998
    Date of Patent: May 15, 2001
    Assignee: Applied Materials, Inc.
    Inventors: Jaim Nulman, Zheng Xu
  • Patent number: 6228186
    Abstract: Improved targets for use in DC_magnetron sputtering of aluminum or like metals are disclosed for forming metallization films having low defect densities. Methods for manufacturing and using such targets are also disclosed. Conductivity anomalies such as those composed of metal oxide inclusions can induce arcing between the target surface and the plasma. The arcing can lead to production of excessive deposition material in the form of splats or blobs. Reducing the content of conductivity anomalies and strengthening the to-be-deposited material is seen to reduce production of such splats or blobs. Other splat limiting steps include smooth finishing of the target surface and low-stress ramp up of the plasma.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: May 8, 2001
    Assignee: Applied Materials, Inc.
    Inventors: Vikram Pavate, Keith J. Hansen, Glen Mori, Murali Narasimhan, Seshadri Ramaswami, Jaim Nulman
  • Patent number: 6217721
    Abstract: An aluminum sputtering process, particularly useful for filling vias and contacts of high aspect ratios formed through a dielectric layer and also usefull for forming interconnects that are highly resistant to electromigration. A liner or barrier layer is first deposited by a high-density plasma (HDP) physical vapor deposition (PVD, also called sputtering) process, such as is done with an inductively coupled plasma. If a contact is connected at its bottom to a silicon element, the first sublayer of the liner layer is a Ti layer, which is silicided to the silicon substrate. The second sublayer comprises TiN, which not only acts as a barrier against the migration of undesirable components into the underlying silicon but also when deposited with an HDP process and biased wafer forms a dense, smooth crystal structure. The third sublayer comprises Ti and preferably is graded from TiN to Ti. Over the liner layer, an aluminum layer is deposited in a standard, non-HDP process.
    Type: Grant
    Filed: April 5, 1996
    Date of Patent: April 17, 2001
    Assignee: Applied Materials, Inc.
    Inventors: Zheng Xu, John Forster, Tse-Yong Yao, Jaim Nulman, Fusen Chen
  • Patent number: 6171455
    Abstract: Improved targets for use in DC_magnetron sputtering of aluminum or like metals are disclosed for forming metallization films having low defect densities. Methods for manufacturing and using such targets are also disclosed. Conductivity anomalies such as those composed of metal oxide inclusions can induce arcing between the target surface and the plasma. The arcing can lead to production of excessive deposition material in the form of splats or blobs. Reducing the content of conductivity anomalies and strengthening the to-be-deposited material is seen to reduce production of such splats or blobs. Other splat limiting steps include smooth finishing of the target surface and low-stress ramp up of the plasma.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: January 9, 2001
    Assignee: Applied Materials Inc.
    Inventors: Vikram Pavate, Keith J. Hansen, Glen Mori, Murali Narasimhan, Seshadri Ramaswami, Jaim Nulman
  • Patent number: 6126791
    Abstract: Improved targets for use in DC.sub.-- magnetron sputtering of aluminum or like metals are disclosed for forming metallization films having low defect densities. Methods for manufacturing and using such targets are also disclosed. Conductivity anomalies such as those composed of metal oxide inclusions can induce arcing between the target surface and the plasma. The arcing can lead to production of excessive deposition material in the form of splats or blobs. Reducing the content of conductivity anomalies and strengthening the to-be-deposited material is seen to reduce production of such splats or blobs. Other splat limiting steps include smooth finishing of the target surface and low-stress ramp up of the plasma.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: October 3, 2000
    Assignee: Applied Materials, Inc.
    Inventors: Vikram Pavate, Keith J. Hansen, Glen Mori, Murali Narasimhan, Seshadri Ramaswami, Jaim Nulman
  • Patent number: 6046100
    Abstract: A method of fabricating an electrically conductive plug on a semiconductor workpiece. A dielectric layer is deposited on the workpiece, and a cavity is etched in the dielectric. An etchant-resistant material is deposited on the wall of the cavity adjacent the cavity mouth so as to form an inwardly-extending lateral protrusion, the etchant-resistant material being resistant to etching by at least one etchant substance which etches said electrically conductive material substantially faster than it etches the etchant resistant material. The cavity is filled by an electrically conductive material. In another aspect of the method, the etchant-resistant material can be omitted. Instead, upper and lower portions of the cavity are etched anisotropically and isotropically, respectively, so as to form a lower portion of the cavity that is wider than the upper portion. In a third aspect of the method, a higher density upper layer of dielectric is deposited over a lower density lower layer of dielectric.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: April 4, 2000
    Assignee: Applied Materials, Inc.
    Inventors: Seshadri Ramaswami, Jaim Nulman
  • Patent number: 6001227
    Abstract: Improved targets for use in DC.sub.-- magnetron sputtering of aluminum or like metals are disclosed for forming metallization films having low defect densities. Methods for manufacturing and using such targets are also disclosed. Conductivity anomalies such as those composed of metal oxide inclusions can induce arcing between the target surface and the plasma. The arcing can lead to production of excessive deposition material in the form of splats or blobs. Reducing the content of conductivity anomalies and strengthening the to-be-deposited material is seen to reduce production of such splats or blobs. Other splat limiting steps include smooth finishing of the target surface and low-stress ramp up of the plasma.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: December 14, 1999
    Assignee: Applied Materials, Inc.
    Inventors: Vikram Pavate, Keith J. Hansen, Glen Mori, Murali Narasimhan, Seshadri Ramaswami, Jaim Nulman
  • Patent number: 5904562
    Abstract: A method for metallizing semiconductor materials includes two processing steps. In the first step, a layer of an alloy of conductive metal, such as aluminum, and an Alloy Material such as hafnium, tantalum, magnesium, germanium, silicon, titanium, titanium nitride, tungsten and/or a composite of tungsten, is deposited on the surface in a single step from a single source. In the second step, a layer of the conductive metal is deposited over the alloy layer. Thus, using this method, metallization can be conveniently performed using two chambers.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: May 18, 1999
    Assignee: Applied Materials, Inc.
    Inventor: Jaim Nulman