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).
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Publication number: 20130288477Abstract: 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: ApplicationFiled: December 7, 2011Publication date: October 31, 2013Applicant: OC OERLIKON BALZERS AGInventors: Sven Uwe Rieschl, Mohamed Elghazzali, Jürgen Weichart
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Patent number: 8475634Abstract: 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: GrantFiled: October 24, 2008Date of Patent: July 2, 2013Assignee: OC Oerlikon Balzers AFInventors: Jurgen Weichart, Stanislav Kadlec
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Patent number: 8435389Abstract: 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: GrantFiled: December 12, 2007Date of Patent: May 7, 2013Assignee: OC Oerlikon Balzers AGInventors: Stanislav Kadlec, Jürgen Weichart
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Patent number: 8268142Abstract: 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: GrantFiled: December 22, 2009Date of Patent: September 18, 2012Assignee: OC Oerlikon Balzers AGInventors: Jürgen Weichart, Heinz Felzer
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Publication number: 20110203920Abstract: 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: ApplicationFiled: February 23, 2011Publication date: August 25, 2011Applicant: OC OERLIKON BALZERS AGInventors: Stanislav Kadlec, Jürgen Weichart
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Publication number: 20100155238Abstract: 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: ApplicationFiled: December 22, 2009Publication date: June 24, 2010Applicant: OC OERLIKON BALZERS AGInventors: Jürgen Weichart, Heinz Felzer
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Patent number: 7736462Abstract: 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: GrantFiled: January 13, 2004Date of Patent: June 15, 2010Assignee: OC Oerlikon Balzers AGInventor: Jurgen Weichart
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Publication number: 20090252892Abstract: 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: ApplicationFiled: March 24, 2009Publication date: October 8, 2009Applicant: OC OERLIKON BALZERS AGInventor: Jurgen Weichart
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Publication number: 20090145554Abstract: 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: ApplicationFiled: December 4, 2008Publication date: June 11, 2009Inventors: Jurgen Weichart, Dominik Wimo Amman, Siegfried Krassnitzer
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Publication number: 20090134011Abstract: 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: ApplicationFiled: January 2, 2008Publication date: May 28, 2009Inventors: Hartmut Rohrmann, Hanspeter Friedli, Jurgen Weichart, Stanislav Kadlec, Martin Dubs
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Publication number: 20090111216Abstract: 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: ApplicationFiled: October 24, 2008Publication date: April 30, 2009Applicant: OC OERLIKON BALZERS AGInventors: Jurgen Weichart, Stanislav Kadlec
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Patent number: 7476301Abstract: 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: GrantFiled: September 27, 2002Date of Patent: January 13, 2009Assignee: Oc Oerlikon Balzers AGInventors: Jürgen Weichart, Dominik Wimo Amman, Siegfried Krassnitzer
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Publication number: 20080135400Abstract: 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: ApplicationFiled: December 12, 2007Publication date: June 12, 2008Applicant: OC OERLIKON BALZERS AGInventors: Stanislav Kadlec, Jurgen Weichart
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Publication number: 20080135401Abstract: 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: ApplicationFiled: December 12, 2007Publication date: June 12, 2008Applicant: OC OERLIKON BALZERS AGInventors: Stanislav Kadlec, Jurgen Weichart
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Publication number: 20060108231Abstract: 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: ApplicationFiled: July 13, 2004Publication date: May 25, 2006Inventor: Jurgen Weichart
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Publication number: 20060065525Abstract: 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: ApplicationFiled: September 28, 2004Publication date: March 30, 2006Inventor: Jurgen Weichart
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Publication number: 20030075522Abstract: 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: ApplicationFiled: September 27, 2002Publication date: April 24, 2003Applicant: Unaxis Balzers AktiengesellschaftInventors: Jurgen Weichart, Dominik Wimo Amman, Siegfried Krassnitzer