Patents by Inventor Jurgen Weichart

Jurgen Weichart 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: 20130288477
    Abstract: Apparatus (1, 26) for depositing a layer (37, 38, 39) on a substrate (2) in a process gas comprises a chuck (3) comprising a first surface (4) for supporting the substrate (2), a clamp (4) for securing the substrate (2) to the first surface (14) of the chuck (3), an evacuatable enclosure (5) enclosing the chuck (3) and the clamp (4) and comprising an inlet, through which the processing gas is insertable into the enclosure (5), and control apparatus (19). The control apparatus (19) is adapted to move at least one of the chuck (3) and the clamp (4) relative to, and independently of, one another to adjust a spacing between the chuck (3) and the clamp (4) during a single deposition process whilst maintaining a flow of the processing gas and a pressure within the enclosure (5) that is less than atmospheric pressure.
    Type: Application
    Filed: December 7, 2011
    Publication date: October 31, 2013
    Applicant: OC OERLIKON BALZERS AG
    Inventors: Sven Uwe Rieschl, Mohamed Elghazzali, Jürgen Weichart
  • Patent number: 8475634
    Abstract: A method of magnetically enhanced sputtering an electrically-conductive material onto interior surfaces of a trench described herein includes providing a magnetic field adjacent to a target formed at least in part from the electrically-conductive material, and applying a DC voltage between an anode and the target as a plurality of pulses. A high-frequency signal is applied to the pedestal supporting the semiconductor substrate to generate a self-bias field adjacent to the semiconductor substrate. The high-frequency signal is applied to the pedestal in pulses, during periods of time that overlap with the periods during which the DC voltage pulses are applied. The periods of time that the high-frequency signals are applied include a duration that extends beyond termination of the DC voltage pulse applied between the anode and the target. During each DC voltage pulse the electrically-conductive material is sputter deposited onto the side walls of the trench formed in the semiconductor substrate.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: July 2, 2013
    Assignee: OC Oerlikon Balzers AF
    Inventors: Jurgen Weichart, Stanislav Kadlec
  • Patent number: 8435389
    Abstract: An apparatus for generating sputtering of a target to produce a coating on a substrate with a current density on a cathode of a magnetron between 0.1 and 10 A/cm2 is provided. The apparatus comprises a power supply that is operably connected to the magnetron and at least one capacitor is operably connected to the power supply. A first switch is also provided. The first switch operably connects the power supply to the magnetron to charge the magnetron and the first switch is configured to charge the magnetron according to a first pulse. An electrical bias device is operably connected to the substrate and configured to apply a substrate bias.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: May 7, 2013
    Assignee: OC Oerlikon Balzers AG
    Inventors: Stanislav Kadlec, Jürgen Weichart
  • Patent number: 8268142
    Abstract: Apparatus for sputtering comprises a vacuum chamber, at least one first electrode having a first surface arranged in the vacuum chamber, a counter electrode having a surface arranged in the vacuum chamber and a RF generator. The RF generator is configured to apply a RF electric field across the at least one first electrode and the counter electrode so as to ignite a plasma between the first electrode and the counter electrode. The counter electrode comprises at least two cavities in communication with the vacuum chamber. the cavities each have dimensions such that a plasma can be formed in the cavity.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: September 18, 2012
    Assignee: OC Oerlikon Balzers AG
    Inventors: Jürgen Weichart, Heinz Felzer
  • Publication number: 20110203920
    Abstract: A target for a physical vapor deposition system includes a top, a bottom, and a base. The base essentially is defined by the surface of the target to be sputtered. A first, inner ring and a second, outer ring extend from the base. Each ring has an inner side and an outer side, wherein sputtering is concentrated on the outer sides by means of a magnet arrangement adjacent to the target.
    Type: Application
    Filed: February 23, 2011
    Publication date: August 25, 2011
    Applicant: OC OERLIKON BALZERS AG
    Inventors: Stanislav Kadlec, Jürgen Weichart
  • Publication number: 20100155238
    Abstract: Apparatus for sputtering comprises a vacuum chamber, at least one first electrode having a first surface arranged in the vacuum chamber, a counter electrode having a surface arranged in the vacuum chamber and a RF generator. The RF generator is configured to apply a RF electric field across the at least one first electrode and the counter electrode so as to ignite a plasma between the first electrode and the counter electrode. The counter electrode comprises at least two cavities in communication with the vacuum chamber. the cavities each have dimensions such that a plasma can be formed in the cavity.
    Type: Application
    Filed: December 22, 2009
    Publication date: June 24, 2010
    Applicant: OC OERLIKON BALZERS AG
    Inventors: Jürgen Weichart, Heinz Felzer
  • Patent number: 7736462
    Abstract: The invention relates to an installation, in particular a vacuum processing installation for processing a substrate (130), in particular a semiconductor wafer, comprising a processing station. Said installation comprises a frame (110), to which is clamped a carrier (120), for holding and/or transporting the substrate (130), whereby the latter (130) can be fastened by its entire surface to said carrier (120). The processing station preferably comprises a chuck electrode (140) with a flat outer surface (141) and the carrier (120) can be positioned parallel and adjacent to said outer surface (141) of the chuck electrode (140). The carrier is composed in particular of a non-conductive dielectric material and is provided on one side with a conductive layer (122), in such a way that the chuck electrode (140) and the carrier (120) form an electrostatic chuck.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: June 15, 2010
    Assignee: OC Oerlikon Balzers AG
    Inventor: Jurgen Weichart
  • Publication number: 20090252892
    Abstract: A process apparatus for treatment of a substrate comprising a load chamber for loading the substrate, a process chamber for processing the substrate, a sealing plane separating the process chamber from the load chamber and means for vertically moving the substrate from the load chamber to the process chamber, and a method for treating the substrate are provided. The load chamber is located in one of the lower and upper portions of the process apparatus, and the process chamber is located in the other of the lower and upper portions of the process apparatus. The process apparatus and method of the present invention will provide easy maintenance and reduced costs by reducing the number of movements for loading the substrate.
    Type: Application
    Filed: March 24, 2009
    Publication date: October 8, 2009
    Applicant: OC OERLIKON BALZERS AG
    Inventor: Jurgen Weichart
  • Publication number: 20090145554
    Abstract: The present invention concerns a procedure for the production of a plasma that is at least co-produced in the vacuum chamber (1a) of a vacuum recipient (1) of a device suitable for plasma processing with at least one induction coil (2) carrying an alternating current, where the gas used to produce the plasma is fed into the vacuum chamber (1a) through at least one inlet (3) and the vacuum chamber (1a) is subject to the pumping action of at least one pump arrangement (4), and where a possibly pulsed direct current is also applied to the induction coil (2) in order to influence the plasma density.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 11, 2009
    Inventors: Jurgen Weichart, Dominik Wimo Amman, Siegfried Krassnitzer
  • Publication number: 20090134011
    Abstract: For producing a directional layer for instance with constant nominal directionality, such as a low-retentivity layer with a preferred direction of magnetization or a support layer for such a layer by cathode sputtering on a substrate surface (4), the coating process takes place in a manner whereby particles emanating from a target surface (6) impinge predominantly from directions at which their projection onto the substrate surface (4) lies within a preferred angular range surrounding the nominal direction. This is achieved for instance by positioning a collimator (8), encompassing plates (9) that extend at a normal angle to the substrate surface (4) parallel to the nominal direction in front of the substrate surface (4), but in lieu of or in addition to such positioning the location or movement of the substrate surface (4) relative to the target surface (6) can also be suitably adjusted or controlled.
    Type: Application
    Filed: January 2, 2008
    Publication date: May 28, 2009
    Inventors: Hartmut Rohrmann, Hanspeter Friedli, Jurgen Weichart, Stanislav Kadlec, Martin Dubs
  • Publication number: 20090111216
    Abstract: A method of magnetically enhanced sputtering an electrically-conductive material onto interior surfaces of a trench described herein includes providing a magnetic field adjacent to a target formed at least in part from the electrically-conductive material, and applying a DC voltage between an anode and the target as a plurality of pulses. A high-frequency signal is applied to the pedestal supporting the semiconductor substrate to generate a self-bias field adjacent to the semiconductor substrate. The high-frequency signal is applied to the pedestal in pulses, during periods of time that overlap with the periods during which the DC voltage pulses are applied. The periods of time that the high-frequency signals are applied include a duration that extends beyond termination of the DC voltage pulse applied between the anode and the target. During each DC voltage pulse the electrically-conductive material is sputter deposited onto the side walls of the trench formed in the semiconductor substrate.
    Type: Application
    Filed: October 24, 2008
    Publication date: April 30, 2009
    Applicant: OC OERLIKON BALZERS AG
    Inventors: Jurgen Weichart, Stanislav Kadlec
  • Patent number: 7476301
    Abstract: The present invention concerns a procedure for the production of a plasma that is at least co-produced in the vacuum chamber (1a) of a vacuum recipient (1) of a device suitable for plasma processing with at least one induction coil (2) carrying an alternating current, where the gas used to produce the plasma is fed into the vacuum chamber (1a) through at least one inlet (3) and the vacuum chamber (1a) is subject to the pumping action of at least one pump arrangement (4), and where a possibly pulsed direct current is also applied to the induction coil (2) in order to influence the plasma density.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: January 13, 2009
    Assignee: Oc Oerlikon Balzers AG
    Inventors: Jürgen Weichart, Dominik Wimo Amman, Siegfried Krassnitzer
  • Publication number: 20080135400
    Abstract: An apparatus for generating sputtering of a target to produce a coating on a substrate is provided. The apparatus comprises a magnetron including a cathode and an anode. A power supply is operably connected to the magnetron and at least one capacitor is operably connected to the power supply. The apparatus also includes an inductance operably connected to the at least one capacitor. A first switch and a second switch are also provided. The first switch operably connects the power supply to the magnetron to charge the magnetron and the first switch is configured to charge the magnetron according to a first pulse. The second switch is operably connected to discharge the magnetron. The second switch is configured to discharge the magnetron according to a second pulse.
    Type: Application
    Filed: December 12, 2007
    Publication date: June 12, 2008
    Applicant: OC OERLIKON BALZERS AG
    Inventors: Stanislav Kadlec, Jurgen Weichart
  • Publication number: 20080135401
    Abstract: An apparatus for generating sputtering of a target to produce a coating on a substrate with a current density on a cathode of a magnetron between 0.1 and 10 A/cm2 is provided. The apparatus comprises a power supply that is operably connected to the magnetron and at least one capacitor is operably connected to the power supply. A first switch is also provided. The first switch operably connects the power supply to the magnetron to charge the magnetron and the first switch is configured to charge the magnetron according to a first pulse. An electrical bias device is operably connected to the substrate and configured to apply a substrate bias.
    Type: Application
    Filed: December 12, 2007
    Publication date: June 12, 2008
    Applicant: OC OERLIKON BALZERS AG
    Inventors: Stanislav Kadlec, Jurgen Weichart
  • Publication number: 20060108231
    Abstract: The invention relates to an installation, in particular a vacuum processing installation for processing a substrate (130), in particular a semiconductor wafer, comprising a processing station. Said installation comprises a frame (110), to which is clamped a carrier (120), for holding and/or transporting the substrate (130), whereby the latter (130) can be fastened by its entire surface to said carrier (120). The processing station preferably comprises a chuck electrode (140) with a flat outer surface (141) and the carrier (120) can be positioned parallel and adjacent to said outer surface (141) of the chuck electrode (140). The carrier is composed in particular of a non-conductive dielectric material and is provided on one side with a conductive layer (122), in such a way that the chuck electrode (140) and the carrier (120) form an electrostatic chuck.
    Type: Application
    Filed: July 13, 2004
    Publication date: May 25, 2006
    Inventor: Jurgen Weichart
  • Publication number: 20060065525
    Abstract: Method for manufacturing magnetron coated substrates, in which along the target and on its backside pointing from the substrate, a magnet arrangement is present by which along the sputter surface of the target at least one closed loop of a tunnel shaped magnetron magnetic field is generated, characterized in that for setting the sputter rate distribution the distance of a part of the magnet arrangement to the backside of the target is changed.
    Type: Application
    Filed: September 28, 2004
    Publication date: March 30, 2006
    Inventor: Jurgen Weichart
  • Publication number: 20030075522
    Abstract: The present invention concerns a procedure for the production of a plasma that is at least co-produced in the vacuum chamber (1a) of a vacuum recipient (1) of a device suitable for plasma processing with at least one induction coil (2) carrying an alternating current, where the gas used to produce the plasma is fed into the vacuum chamber (1a) through at least one inlet (3) and the vacuum chamber (1a) is subject to the pumping action of at least one pump arrangement (4), and where a possibly pulsed direct current is also applied to the induction coil (2) in order to influence the plasma density.
    Type: Application
    Filed: September 27, 2002
    Publication date: April 24, 2003
    Applicant: Unaxis Balzers Aktiengesellschaft
    Inventors: Jurgen Weichart, Dominik Wimo Amman, Siegfried Krassnitzer