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).
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Publication number: 20020188414Abstract: 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: ApplicationFiled: June 12, 2001Publication date: December 12, 2002Applicant: Applied Materials, Inc.Inventor: Jaim Nulman
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Publication number: 20020187024Abstract: 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: ApplicationFiled: June 12, 2001Publication date: December 12, 2002Applicant: Applied Materials, Inc.Inventor: Jaim Nulman
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Publication number: 20020144901Abstract: 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: ApplicationFiled: January 17, 2002Publication date: October 10, 2002Inventors: Jaim Nulman, Sergio Edelstein, Mani Subramani, Zheng Xu, Howard Grunes, Avi Tepman, John Forster, Praburam Gopalraja
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Patent number: 6456894Abstract: 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: GrantFiled: June 1, 1999Date of Patent: September 24, 2002Assignee: Applied Materials, Inc.Inventor: Jaim Nulman
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Patent number: 6455921Abstract: 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: GrantFiled: February 18, 2000Date of Patent: September 24, 2002Assignee: Applied Materials, Inc.Inventors: Seshadri Ramaswami, Jaim Nulman
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Publication number: 20020130651Abstract: 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: ApplicationFiled: March 19, 2001Publication date: September 19, 2002Applicant: Applied Materials, Inc.Inventors: Moshe Sarfaty, Ramaswamy Sreenivasan, Jaim Nulman
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Publication number: 20020075478Abstract: 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: ApplicationFiled: December 18, 2000Publication date: June 20, 2002Applicant: Applied Materials, Inc.Inventors: Jaim Nulman, Manoocher Birang
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Patent number: 6408220Abstract: 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: GrantFiled: June 1, 1999Date of Patent: June 18, 2002Assignee: Applied Materials, Inc.Inventor: Jaim Nulman
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Patent number: 6368469Abstract: 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: GrantFiled: May 6, 1997Date of Patent: April 9, 2002Assignee: Applied Materials, Inc.Inventors: Jaim Nulman, Sergio Edelstein, Mani Subramani, Zheng Xu, Howard Grunes, Avi Tepman, John Forster, Praburam Gopalraja
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Patent number: 6361618Abstract: 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: GrantFiled: June 22, 1999Date of Patent: March 26, 2002Assignee: Applied Materials, Inc.Inventor: Jaim Nulman
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Publication number: 20020023329Abstract: 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: ApplicationFiled: October 4, 2001Publication date: February 28, 2002Applicant: Applied Materials, Inc.Inventor: Jaim Nulman
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Patent number: 6303395Abstract: 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: GrantFiled: June 1, 1999Date of Patent: October 16, 2001Assignee: Applied Materials, Inc.Inventor: Jaim Nulman
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Patent number: 6231725Abstract: 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: GrantFiled: August 4, 1998Date of Patent: May 15, 2001Assignee: Applied Materials, Inc.Inventors: Jaim Nulman, Zheng Xu
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Patent number: 6228186Abstract: 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: GrantFiled: October 14, 1999Date of Patent: May 8, 2001Assignee: Applied Materials, Inc.Inventors: Vikram Pavate, Keith J. Hansen, Glen Mori, Murali Narasimhan, Seshadri Ramaswami, Jaim Nulman
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Patent number: 6217721Abstract: 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: GrantFiled: April 5, 1996Date of Patent: April 17, 2001Assignee: Applied Materials, Inc.Inventors: Zheng Xu, John Forster, Tse-Yong Yao, Jaim Nulman, Fusen Chen
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Patent number: 6171455Abstract: 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: GrantFiled: October 14, 1999Date of Patent: January 9, 2001Assignee: Applied Materials Inc.Inventors: Vikram Pavate, Keith J. Hansen, Glen Mori, Murali Narasimhan, Seshadri Ramaswami, Jaim Nulman
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Patent number: 6126791Abstract: 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: GrantFiled: October 14, 1999Date of Patent: October 3, 2000Assignee: Applied Materials, Inc.Inventors: Vikram Pavate, Keith J. Hansen, Glen Mori, Murali Narasimhan, Seshadri Ramaswami, Jaim Nulman
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Patent number: 6046100Abstract: 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: GrantFiled: December 12, 1996Date of Patent: April 4, 2000Assignee: Applied Materials, Inc.Inventors: Seshadri Ramaswami, Jaim Nulman
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Patent number: 6001227Abstract: 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: GrantFiled: November 26, 1997Date of Patent: December 14, 1999Assignee: Applied Materials, Inc.Inventors: Vikram Pavate, Keith J. Hansen, Glen Mori, Murali Narasimhan, Seshadri Ramaswami, Jaim Nulman
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Patent number: 5904562Abstract: 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: GrantFiled: November 6, 1997Date of Patent: May 18, 1999Assignee: Applied Materials, Inc.Inventor: Jaim Nulman