Patents by Inventor Tomislav Suligoj

Tomislav Suligoj 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: 20230395666
    Abstract: A semiconductor device including a Horizontal Current Bipolar Transistor (HCBT) and methods of manufacture. The device has a semiconductor substrate of a first conductivity type defining a wafer plane parallel to the semiconductor substrate and has a base region and a collector region forming a first metallurgical junction. The device also has an emitter region forming a second metallurgical junction with the base region. A flat portion of the first metallurgical junction and a flat portion of the second metallurgical junction are substantially parallel to each other and close an acute angle with the wafer plane. At least a portion of the base region comprises silicon-germanium alloy or silicon-germanium-carbon alloy.
    Type: Application
    Filed: July 10, 2023
    Publication date: December 7, 2023
    Inventors: Tomislav Suligoj, Marko Koricic, Josip Zilak, Zeljko Osrecki
  • Patent number: 11721726
    Abstract: A semiconductor device including a Horizontal Current Bipolar Transistor (HCBT) and methods of manufacture. The device has a semiconductor substrate of a first conductivity type defining a wafer plane parallel to the semiconductor substrate and has a base region and a collector region forming a first metallurgical junction. The device also has an emitter region forming a second metallurgical junction with the base region. A flat portion of the first metallurgical junction and a flat portion of the second metallurgical junction are substantially parallel to each other and close an acute angle with the wafer plane. At least a portion of the base region comprises silicon-germanium alloy or silicon-germanium-carbon alloy.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: August 8, 2023
    Assignee: University of Zagreb, Faculty of Electrical Engineering and Computing
    Inventors: Tomislav Suligoj, Marko Koricic, Josip Zilak, Zeljko Osrecki
  • Publication number: 20220045174
    Abstract: A semiconductor device including a Horizontal Current Bipolar Transistor (HCBT) and methods of manufacture. The device has a semiconductor substrate of a first conductivity type defining a wafer plane parallel to the semiconductor substrate and has a base region and a collector region forming a first metallurgical junction. The device also has an emitter region forming a second metallurgical junction with the base region. A flat portion of the first metallurgical junction and a flat portion of the second metallurgical junction are substantially parallel to each other and close an acute angle with the wafer plane. At least a portion of the base region comprises silicon-germanium alloy or silicon-germanium-carbon alloy.
    Type: Application
    Filed: August 4, 2021
    Publication date: February 10, 2022
    Applicant: University of Zagreb
    Inventors: Tomislav Suligoj, Marko Koricic, Josip Zilak, Zeljko Osrecki
  • Patent number: 10720517
    Abstract: A horizontal current bipolar transistor comprises; an n-hill layer on a substrate, forming a first pn-junction with the substrate; a n+ diffusion layer on the substrate, adjacent to the n-hill layer, forming a n+n junction with the n-hill layer; an intrinsic base layer on the n-hill layer and comprising a portion of a sidewall inclined at an acute angle to the substrate plane, forming a second pn-junction with the n-hill layer; an extrinsic base layer on the n-hill layer, forming a third pn-junction with the n-hill layer, and a p+p junction with the intrinsic base layer; a field limiting region on the n-hill layer, forming a fourth pn-junction with the n-hill layer. The field limiting region is spatially separated from the extrinsic base layer and the n+ diffusion layer. The extrinsic base layer and the field limiting region exhibit substantially equal impurity dopant distribution decay towards the substrate.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: July 21, 2020
    Assignee: University of Zagreb Faculty of Electrical Engineering and Computing
    Inventors: Marko Koricic, Tomislav Suligoj
  • Publication number: 20190115456
    Abstract: A horizontal current bipolar transistor comprises; an n-hill layer on a substrate, forming a first pn-junction with the substrate; a n+ diffusion layer on the substrate, adjacent to the n-hill layer, forming a n+n junction with the n-hill layer; an intrinsic base layer on the n-hill layer and comprising a portion of a sidewall inclined at an acute angle to the substrate plane, forming a second pn-junction with the n-hill layer; an extrinsic base layer on the n-hill layer, forming a third pn-junction with the n-hill layer, and a p+p junction with the intrinsic base layer; a field limiting region on the n-hill layer, forming a fourth pn-junction with the n-hill layer. The field limiting region is spatially separated from the extrinsic base layer and the n+ diffusion layer. The extrinsic base layer and the field limiting region exhibit substantially equal impurity dopant distribution decay towards the substrate.
    Type: Application
    Filed: October 17, 2018
    Publication date: April 18, 2019
    Applicant: University of Zagreb, Faculty of Electrical Engineering and Computing
    Inventors: Marko Koricic, Tomislav Suligoj
  • Publication number: 20190027527
    Abstract: A photodiode detector array comprises: a substrate comprising a front surface and a mounting surface; a first active region and a second active region, each of said first and second active regions being operatively configured to detect electromagnetic radiation in a wavelength range, and each of said first and second active regions being formed within said substrate and disposed proximate to said front surface; and a layer formed within said substrate and disposed proximal to said mounting surface, wherein said layer exhibits an electromagnetic wave absorption coefficient greater than or equal to 3×103 cm-1 in the wavelength range from 500 nm to 800 nm.
    Type: Application
    Filed: July 13, 2018
    Publication date: January 24, 2019
    Applicant: University of Zagreb, Faculty of Electrical Engineering and Computing
    Inventors: Tomislav Suligoj, Tihomir Knezevic, Zeljko Osrecki
  • Patent number: 9842834
    Abstract: A horizontal current bipolar transistor comprises a substrate of first conductivity type, defining a wafer plane parallel to said substrate; a collector drift region above said substrate, having a second, opposite conductivity type, forming a first metallurgical pn-junction with said substrate; a collector contact region having second conductivity type above said substrate and adjacent to said collector drift region; a base region comprising a sidewall at an acute angle to said wafer plane, having first conductivity type, and forming a second metallurgical pn-junction with said collector drift region; and a buried region having first conductivity type between said substrate and said collector drift region forming a third metallurgical pn-junction with the collector drift region. An intercept between an isometric projection of said base region on said wafer plane and an isometric projection of said buried region on said wafer plane is smaller than said isometric projection of said base region.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: December 12, 2017
    Inventors: Marko Koricic, Tomislav Suligoj
  • Publication number: 20170179220
    Abstract: A horizontal current bipolar transistor comprises a substrate of first conductivity type, defining a wafer plane parallel to said substrate; a collector drift region above said substrate, having a second, opposite conductivity type, forming a first metallurgical pn-junction with said substrate; a collector contact region having second conductivity type above said substrate and adjacent to said collector drift region; a base region comprising a sidewall at an acute angle to said wafer plane, having first conductivity type, and forming a second metallurgical pn-junction with said collector drift region; and a buried region having first conductivity type between said substrate and said collector drift region forming a third metallurgical pn-junction with the collector drift region. An intercept between an isometric projection of said base region on said wafer plane and an isometric projection of said buried region on said wafer plane is smaller than said isometric projection of said base region.
    Type: Application
    Filed: December 21, 2015
    Publication date: June 22, 2017
    Applicant: University of Zagreb, Faculty of Electrical Engineering and Computing
    Inventors: Marko Koricic, Tomislav Suligoj
  • Patent number: 8772837
    Abstract: A configuration of a lateral transistor suited for the hybrid-integration (BiCMOS) of a high-performance lateral transistor (HCBT) and a CMOS transistor, and a method for manufacturing the lateral transistor. A semiconductor device includes a HCBT 100 and a CMOS transistor 200 hybrid-integrated. The HCBT 100 has an open region 21 opened by etching a device isolating oxide film 6 surrounding an n-hill layer 11. An emitter electrode 31A and a collector electrode 31B are formed in the open region 21 and are composed of a polysilicon film having such a thickness as to expose the n-hill layer 11 exposed by etching the device isolating oxide film, and an ultrathin oxide film 24 covering at least a part of the n-hill layer 11. The ultrathin oxide film 24 functions as a protective film for protecting the n-hill layer 11 from being etched when the polysilicon film is etched.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: July 8, 2014
    Assignee: Asahi Kasei Microdevices Corporation
    Inventors: Tomislav Suligoj, Marko Koricic, Hidenori Mochizuki, Soichi Morita
  • Publication number: 20140035063
    Abstract: A configuration of a lateral transistor suited for the hybrid-integration (BiCMOS) of a high-performance lateral transistor (HCBT) and a CMOS transistor, and a method for manufacturing the lateral transistor. A semiconductor device includes a HCBT 100 and a CMOS transistor 200 hybrid-integrated. The HCBT 100 has an open region 21 opened by etching a device isolating oxide film 6 surrounding an n-hill layer 11. An emitter electrode 31A and a collector electrode 31B are formed in the open region 21 and are composed of a polysilicon film having such a thickness as to expose the n-hill layer 11 exposed by etching the device isolating oxide film, and an ultrathin oxide film 24 covering at least a part of the n-hill layer 11. The ultrathin oxide film 24 functions as a protective film for protecting the n-hill layer 11 from being etched when the polysilicon film is etched.
    Type: Application
    Filed: September 20, 2013
    Publication date: February 6, 2014
    Applicant: Asahi Kasei Microdevices Corporation
    Inventors: Tomislav SULIGOJ, Marko KORICIC, Hidenori MOCHIZUKI, Soichi MORITA
  • Patent number: 8569866
    Abstract: A configuration of a lateral transistor suited for the hybrid-integration (BiCMOS) of a high-performance lateral transistor (HCBT) and a CMOS transistor, and a method for manufacturing the lateral transistor are provided. A semiconductor device includes a HCBT 100 and a CMOS transistor 200 hybrid-integrated therein. The HCBT 100 has an open region 21 opened by etching a device isolating oxide film 6 surrounding an n-hill layer 11, an emitter electrode 31A and a collector electrode 31B each of which is formed in the open region 21 and is composed of a polysilicon film having such a thickness as to expose the n-hill layer 11 exposed by etching the device isolating oxide film, and an ultrathin oxide film 24 covering at least a part of the n-hill layer 11. The ultrathin oxide film 24 functions as a protective film for protecting the n-hill layer 11 from being etched when the polysilicon film is etched to form the emitter electrode 31A and the collector electrode 31B.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: October 29, 2013
    Assignee: Asahi Kasei Microdevices Corporation
    Inventors: Tomislav Suligoj, Marko Koricic, Hidenori Mochizuki, Soichi Morita
  • Publication number: 20110266630
    Abstract: A configuration of a lateral transistor suited for the hybrid-integration (BiCMOS) of a high-performance lateral transistor (HCBT) and a CMOS transistor, and a method for manufacturing the lateral transistor are provided. A semiconductor device includes a HCBT 100 and a CMOS transistor 200 hybrid-integrated therein. The HCBT 100 has an open region 21 opened by etching a device isolating oxide film 6 surrounding an n-hill layer 11, an emitter electrode 31A and a collector electrode 31B each of which is formed in the open region 21 and is composed of a polysilicon film having such a thickness as to expose the n-hill layer 11 exposed by etching the device isolating oxide film, and an ultrathin oxide film 24 covering at least a part of the n-hill layer 11. The ultrathin oxide film 24 functions as a protective film for protecting the n-hill layer 11 from being etched when the polysilicon film is etched to form the emitter electrode 31A and the collector electrode 31B.
    Type: Application
    Filed: December 19, 2008
    Publication date: November 3, 2011
    Applicant: ASAHI KASEI MICRODEVICES CORPORATION
    Inventors: Tomislav Suligoj, Marko Koricic, Hidenori Mochizuki, Soichi Morita
  • Patent number: 7038249
    Abstract: A bipolar transistor structure for use in integrated circuits where the active device is processed on the sidewall of an n-hill so that the surface footprint does not depend on the desired area of active device region (emitter area). This structure, which is referred to as a Horizontal Current Bipolar Transistor (HCBT), consumes a smaller area of chip surface than conventional devices, thereby enabling higher packing density of devices and/or the reduction of integrated circuit die size. The device is fabricated with a single polysilicon layer, without an epitaxial process, without demanding trench isolation technology, and with reduced thermal budget. Fabrication requires fewer etching processes and thermal oxidations than in conventional devices.
    Type: Grant
    Filed: October 1, 2003
    Date of Patent: May 2, 2006
    Assignee: The Regents of the University of California
    Inventors: Tomislav Suligoj, Petar Biljanovic, Kang L. Wang
  • Publication number: 20050040495
    Abstract: A bipolar transistor structure for use in integrated circuits where the active device is processed on the sidewall of an n-hill so that the surface footprint does not depend on the desired area of active device region (emitter area). This structure, which is referred to as a Horizontal Current Bipolar Transistor (HCBT), consumes a smaller area of chip surface than conventional devices, thereby enabling higher packing density of devices and/or the reduction of integrated circuit die size. The device is fabricated with a single polysilicon layer, without an epitaxial process, without demanding trench isolation technology, and with reduced thermal budget. Fabrication requires fewer etching processes and thermal oxidations than in conventional devices.
    Type: Application
    Filed: October 1, 2003
    Publication date: February 24, 2005
    Inventors: Tomislav Suligoj, Petar Biljanovic, Kang Wang