Patents by Inventor Manfred Kotek

Manfred Kotek 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: 9754859
    Abstract: A semiconductor device includes a semiconductor substrate, a doped zone, a polysilicon layer and an elongate plug structure. The doped zone is within the semiconductor substrate. The polysilicon layer is disposed in a trench electrically isolated from the semiconductor substrate by an insulating layer. The elongate plug structure extends in a lateral direction in or above the semiconductor substrate. The elongate plug structure provides electrical connection between the doped zone and the polysilicon layer.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: September 5, 2017
    Assignee: Infineon Technologies AG
    Inventors: Walter Rieger, Franz Hirler, Martin Poelzl, Manfred Kotek
  • Patent number: 9698247
    Abstract: A semiconductor arrangement is produced by providing a semiconductor carrier of a second conduction type and epitaxially growing a first semiconductor zone of a first conduction type on the carrier. The first semiconductor zone includes a semiconductor base material doped with first and second dopants which are made of different substances which are both different from the semiconductor base material. The first dopant is electrically active and causes a doping of the first conduction type in the semiconductor base material, and causes a decrease or an increase of a lattice constant of the first semiconductor zone. The second dopant causes one or both of hardening of the first semiconductor zone and an increase of the lattice constant of the first semiconductor zone if the first dopant causes a decrease, or a decrease of the lattice constant of the first semiconductor zone if the first dopant causes an increase.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: July 4, 2017
    Assignee: Infineon Technologies AG
    Inventors: Hans-Joachim Schulze, Manfred Kotek, Johannes Baumgartl, Markus Harfmann, Christian Krenn, Thomas Neidhart
  • Patent number: 9406564
    Abstract: In one embodiment, the semiconductor die includes a selective epitaxial layer including device regions, and a masking structure disposed around sidewalls of the epitaxial layer. The masking structure is part of an exposed surface of the semiconductor die.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: August 2, 2016
    Assignee: Infineon Technologies AG
    Inventors: Manfred Engelhardt, Johannes Baumgartl, Manfred Kotek, Hans-Joachim Schulze
  • Publication number: 20160197164
    Abstract: A semiconductor arrangement is produced by providing a semiconductor carrier of a second conduction type and epitaxially growing a first semiconductor zone of a first conduction type on the carrier. The first semiconductor zone includes a semiconductor base material doped with first and second dopants which are made of different substances which are both different from the semiconductor base material. The first dopant is electrically active and causes a doping of the first conduction type in the semiconductor base material, and causes a decrease or an increase of a lattice constant of the first semiconductor zone. The second dopant causes one or both of hardening of the first semiconductor zone and an increase of the lattice constant of the first semiconductor zone if the first dopant causes a decrease, or a decrease of the lattice constant of the first semiconductor zone if the first dopant causes an increase.
    Type: Application
    Filed: March 16, 2016
    Publication date: July 7, 2016
    Inventors: Hans-Joachim Schulze, Manfred Kotek, Johannes Baumgartl, Markus Harfmann, Christian Krenn, Thomas Neidhart
  • Patent number: 9306010
    Abstract: A first semiconductor zone of a first conduction type is formed from a semiconductor base material doped with first and second dopants. The first and second dopants are different substances and also different from the semiconductor base material. The first dopant is electrically active and causes a doping of the first conduction type in the semiconductor base material, and causes either a decrease or an increase of a lattice constant of the pure, undoped first semiconductor zone. The second dopant may be electrically active, and may be of the same doping type as the first dopant, causes one or both of: a hardening of the first semiconductor zone; an increase of the lattice constant of the pure, undoped first semiconductor zone if the first dopant causes a decrease, and a decrease of the lattice constant of the pure, undoped first semiconductor zone if the first dopant causes an increase, respectively.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: April 5, 2016
    Assignee: Infineon Technologies AG
    Inventors: Hans-Joachim Schulze, Manfred Kotek, Johannes Baumgartl, Markus Harfmann, Christian Krenn, Thomas Neidhart
  • Publication number: 20150137144
    Abstract: In one embodiment, the semiconductor die includes a selective epitaxial layer including device regions, and a masking structure disposed around sidewalls of the epitaxial layer. The masking structure is part of an exposed surface of the semiconductor die.
    Type: Application
    Filed: November 21, 2013
    Publication date: May 21, 2015
    Applicant: Infineon Technologies AG
    Inventors: Manfred Engelhardt, Johannes Baumgartl, Manfred Kotek, Hans-Joachim Schulze
  • Publication number: 20140021637
    Abstract: A semiconductor device includes a semiconductor substrate, a doped zone, a polysilicon layer and an elongate plug structure. The doped zone is within the semiconductor substrate. The polysilicon layer is disposed in a trench electrically isolated from the semiconductor substrate by an insulating layer. The elongate plug structure extends in a lateral direction in or above the semiconductor substrate. The elongate plug structure provides electrical connection between the doped zone and the polysilicon layer.
    Type: Application
    Filed: September 25, 2013
    Publication date: January 23, 2014
    Applicant: Infineon Technologies AG
    Inventors: Walter Rieger, Franz Hirler, Martin Poelzl, Manfred Kotek
  • Patent number: 8564061
    Abstract: A semiconductor device has elongate plug structures extending in the lateral direction. The plug structures serve as electrical lines in order to enable locally defined lateral current flows within the cell array, within edge regions or logic regions of the semiconductor device.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: October 22, 2013
    Assignee: Infineon Technologies AG
    Inventors: Walter Rieger, Franz Hirler, Martin Poelzl, Manfred Kotek
  • Publication number: 20130240902
    Abstract: A first semiconductor zone of a first conduction type is formed from a semiconductor base material doped with first and second dopants. The first and second dopants are different substances and also different from the semiconductor base material. The first dopant is electrically active and causes a doping of the first conduction type in the semiconductor base material, and causes either a decrease or an increase of a lattice constant of the pure, undoped first semiconductor zone. The second dopant may be electrically active, and may be of the same doping type as the first dopant, causes one or both of: a hardening of the first semiconductor zone; an increase of the lattice constant of the pure, undoped first semiconductor zone if the first dopant causes a decrease, and a decrease of the lattice constant of the pure, undoped first semiconductor zone if the first dopant causes an increase, respectively.
    Type: Application
    Filed: March 14, 2012
    Publication date: September 19, 2013
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Hans-Joachim Schulze, Manfred Kotek, Johannes Baumgartl, Markus Harfmann, Christian Krenn, Thomas Neidhart
  • Patent number: 7863104
    Abstract: A method of fabricating a semiconductor chip includes the providing an adhesive layer on the outer area of the active surface of a device wafer and attaching a rigid body to the active surface by the adhesive layer. The device wafer is thinned by treating the passive surface of the device wafer. A first backing tape is connected to the passive surface of the device wafer. The outer portion of the rigid body is separated from the central portion of the rigid body and the outer portion of the device wafer is separated from the central portion of the device wafer. The central portion of the rigid body, the outer portion of the device wafer and the outer portion of the rigid body are removed from the first backing tape. The device wafer may be diced into semiconductor chips.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: January 4, 2011
    Assignee: Infineon Technologies AG
    Inventors: Werner Kroeninger, Manfred Kotek, Adolf Koller, Abdul Rahman Mohamed
  • Publication number: 20090098684
    Abstract: A method of fabricating a semiconductor chip includes the providing an adhesive layer on the outer area of the active surface of a device wafer and attaching a rigid body to the active surface by the adhesive layer. The device wafer is thinned by treating the passive surface of the device wafer. A first backing tape is connected to the passive surface of the device wafer. The outer portion of the rigid body is separated from the central portion of the rigid body and the outer portion of the device wafer is separated from the central portion of the device wafer. The central portion of the rigid body, the outer portion of the device wafer and the outer portion of the rigid body are removed from the first backing tape. The device wafer may be diced into semiconductor chips.
    Type: Application
    Filed: October 7, 2008
    Publication date: April 16, 2009
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Werner Kroeninger, Manfred Kotek, Adolf Koller, Abdul Rahman Mohamed
  • Patent number: 7498194
    Abstract: The invention relates to a vertical arrangement of at least two semiconductor components which are electrically insulated from one another by at least one passivation layer. The invention likewise relates to a method for fabricating such a semiconductor arrangement. A semiconductor arrangement is specified in which, inter alia, the risk of cracking at the metallization edges, for example, caused by thermomechanical loading, is reduced and the fabrication-dictated high content of radical hydrogen is minimized. Furthermore, a method for fabricating such a semiconductor arrangement is specified.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: March 3, 2009
    Assignee: Infineon Technologies AG
    Inventors: Nikolaus Bott, Oliver Haeberlen, Manfred Kotek, Joost Larik, Josef Maerz, Ralf Otremba
  • Publication number: 20070178624
    Abstract: The invention relates to a vertical arrangement of at least two semiconductor components which are electrically insulated from one another by at least one passivation layer. The invention likewise relates to a method for fabricating such a semiconductor arrangement. A semiconductor arrangement is specified in which, inter alia, the risk of cracking at the metallization edges, for example, caused by thermomechanical loading, is reduced and the fabrication-dictated high content of radical hydrogen is minimized. Furthermore, a method for fabricating such a semiconductor arrangement is specified.
    Type: Application
    Filed: April 11, 2007
    Publication date: August 2, 2007
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Nikolaus Bott, Oliver Haeberlen, Manfred Kotek, Joost Larik, Josef Maerz, Ralf Otremba
  • Patent number: 7250343
    Abstract: In the case of the cost-effective method according to the invention for fabricating a power transistor arrangement, a trench power transistor arrangement (1) is fabricated with four patterning planes each containing a lithography step. The power transistor arrangement according to the invention has a cell array (3) with cell array trenches (5) each containing a field electrode structure (11) and a gate electrode structure (10). The field electrode structure (11) is electrically conductively connected to the source metallization (15) by a connection trench (6) in the cell array (3).
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: July 31, 2007
    Assignee: Infineon Technologies AG
    Inventors: Manfred Kotek, Oliver Häberlen, Martin Pölzl, Walter Rieger
  • Patent number: 7233059
    Abstract: The invention relates to a vertical arrangement of at least two semiconductor components which are electrically insulated from one another by at least one passivation layer. The invention likewise relates to a method for fabricating such a semiconductor arrangement. A semiconductor arrangement is specified in which, inter alia, the risk of cracking at the metallization edges, for example, caused by thermomechanical loading, is reduced and the fabrication-dictated high content of radical hydrogen is minimized. Furthermore, a method for fabricating such a semiconductor arrangement is specified.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: June 19, 2007
    Assignee: Infineon Technologies AG
    Inventors: Nikolaus Bott, Oliver Haeberlen, Manfred Kotek, Joost Larik, Josef Maerz, Ralf Otremba
  • Patent number: 7186618
    Abstract: When fabricating trench power transistor arrangements (1) with active cell array trenches (5) and passive connecting trenches (6), the cell array trenches (5) are provided in greater width than the connecting trenches (6). An auxiliary layer (24) is deposited conformally onto a lower field electrode structure (11) in the cell array trenches (5) and the connecting trenches (6) and is etched back as far as the top edge in the connecting trenches (6), which removes it from the cell array trenches (5). The auxiliary layer (24) allows the gate oxide (20) to be patterned without a complex mask process. An edge trench (7), with an electrode, on the potential of the field electrode structure (11) shields the cell array (3) from a drain potential.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: March 6, 2007
    Assignee: Infineon Technologies AG
    Inventors: Martin Pölzl, Franz Hirler, Oliver Häberlen, Manfred Kotek, Walter Rieger
  • Publication number: 20050269711
    Abstract: A semiconductor device has elongate plug structures extending in the lateral direction. The plug structures serve as electrical lines in order to enable locally defined lateral current flows within the cell array, within edge regions or logic regions of the semiconductor device.
    Type: Application
    Filed: May 18, 2005
    Publication date: December 8, 2005
    Applicant: Infineon Technologies AG
    Inventors: Walter Rieger, Franz Hirler, Martin Poelzl, Manfred Kotek
  • Publication number: 20050151190
    Abstract: In the case of the cost-effective method according to the invention for fabricating a power transistor arrangement, a trench power transistor arrangement (1) is fabricated with four patterning planes each containing a lithography step. The power transistor arrangement according to the invention has a cell array (3) with cell array trenches (5) each containing a field electrode structure (11) and a gate electrode structure (10). The field electrode structure (11) is electrically conductively connected to the source metallization (15) by a connection trench (6) in the cell array (3).
    Type: Application
    Filed: November 12, 2004
    Publication date: July 14, 2005
    Applicant: Infineon Technologies AG
    Inventors: Manfred Kotek, Oliver Haberlen, Martin Polzl, Walter Rieger
  • Publication number: 20050145936
    Abstract: When fabricating trench power transistor arrangements (1) with active cell array trenches (5) and passive connecting trenches (6), the cell array trenches (5) are provided in greater width than the connecting trenches (6). An auxiliary layer (24) is deposited conformally onto a lower field electrode structure (11) in the cell array trenches (5) and the connecting trenches (6) and is etched back as far as the top edge in the connecting trenches (6), which removes it from the cell array trenches (5). The auxiliary layer (24) allows the gate oxide (20) to be patterned without a complex mask process. An edge trench (7), with an electrode, on the potential of the field electrode structure (11) shields the cell array (3) from a drain potential.
    Type: Application
    Filed: October 29, 2004
    Publication date: July 7, 2005
    Applicant: Infineon Technologies AG
    Inventors: Martin Polzl, Franz Hirler, Oliver Haberlen, Manfred Kotek, Walter Rieger
  • Publication number: 20050012215
    Abstract: The invention relates to a vertical arrangement of at least two semiconductor components which are electrically insulated from one another by at least one passivation layer. The invention likewise relates to a method for fabricating such a semiconductor arrangement. A semiconductor arrangement is specified in which, inter alia, the risk of cracking at the metallization edges, for example, caused by thermomechanical loading, is reduced and the fabrication-dictated high content of radical hydrogen is minimized. Furthermore, a method for fabricating such a semiconductor arrangement is specified.
    Type: Application
    Filed: May 20, 2004
    Publication date: January 20, 2005
    Inventors: Nikolaus Bott, Oliver Haeberlen, Manfred Kotek, Joost Larik, Josef Maerz, Ralf Otremba