Patents by Inventor Nozomi Shimoishizaka

Nozomi Shimoishizaka 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: 6812573
    Abstract: A low elasticity layer (20) having an opening in an electrode arranging area where element electrodes are disposed is provided on a main surface of a semiconductor substrate (10). On the low elasticity layer (20), lands (32) serving as external electrodes are disposed, and pads (30) on the element electrodes, the lands (32) and metal wires (31) for connecting them are integrally formed as a metal wiring pattern (33). A solder resist film (50) having an opening for exposing a part of each land (32) is formed, and a metal ball (40) is provided on the land (32) in the opening. The low elasticity layer (20) absorbs thermal stress and the like caused in heating or cooling the semiconductor device, so as to prevent disconnection of the metal wires (31).
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: November 2, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Nozomi Shimoishizaka, Ryuichi Sahara, Yoshifumi Nakamura, Takahiro Kumakawa, Shinji Murakami, Yutaka Harada
  • Patent number: 6784557
    Abstract: The semiconductor device includes a semiconductor element having an electrode formed on a surface thereof, and a metal wiring formed on the surface of the semiconductor element and electrically connected to the electrode. The metal wiring has an external electrode portion functioning as an external electrode. A thickness of the external electrode portion is greater than that of a non-electrode portion of the metal wiring, i.e., a portion of the metal wiring other than the external electrode portion.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: August 31, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshifumi Nakamura, Ryuichi Sahara, Nozomi Shimoishizaka, Kazuyuki Kainou, Keiji Miki, Kazumi Watase, Yasutake Yaguchi
  • Publication number: 20030218247
    Abstract: A semiconductor device has a semiconductor chip, a first insulating film and an inductor. The semiconductor chip includes an integrated circuit formed on the main surface of the chip and a plurality of pad electrodes formed on the main surface of the chip and electrically connected to the integrated circuit. The first insulating film of an insulating resin material is formed on the main surface of the semiconductor chip, covers the integrated circuit, and includes a plurality of contact holes provided on the respective pad electrodes. The inductor is formed on the inductor formation region of the first insulating film, and both terminals of the inductor are connected to the pad electrodes through the contact holes, respectively. The inductor formation region of the first insulating film is formed thicker than a portion of the first insulating film around the contact hole.
    Type: Application
    Filed: May 21, 2003
    Publication date: November 27, 2003
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Nozomi Shimoishizaka, Kazuyuki Kaino, Yoshifumi Nakamura, Keiji Miki, Kazumi Watase, Ryuichi Sahara
  • Publication number: 20030194834
    Abstract: Disclosed is a semiconductor device 10 comprising a first semiconductor element 11 with an arrangement of first element electrodes 12, a second semiconductor element 13 with an arrangement of second element electrodes 14, a connection member 15 electrically connecting together a portion 12b of the first element electrodes 12 and the second element electrodes 14, an insulation layer 17 covering a major surface 11a of the first semiconductor element 11 and a backside surface 13b of the second semiconductor element 13, a wiring layer 22 formed on the insulation layer 17 and electrically connected to the first element electrode portion 12b exposed in an opening portion 21, and an external electrode 23 formed, as a portion of the wiring layer 22, on the insulation layer 17.
    Type: Application
    Filed: March 14, 2003
    Publication date: October 16, 2003
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Kazumi Watase, Hiroaki Fujimoto, Ryuichi Sahara, Nozomi Shimoishizaka, Takahiro Kumakawa, Kazuyuki Kaino, Yoshifumi Nakamura
  • Publication number: 20030116867
    Abstract: The semiconductor device includes a semiconductor element having an electrode formed on a surface thereof, and a metal wiring formed on the surface of the semiconductor element and electrically connected to the electrode. The metal wiring has an external electrode portion functioning as an external electrode. A thickness of the external electrode portion is greater than that of a non-electrode portion of the metal wiring, i.e., a portion of the metal wiring other than the external electrode portion.
    Type: Application
    Filed: December 2, 2002
    Publication date: June 26, 2003
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshifumi Nakamura, Ryuichi Sahara, Nozomi Shimoishizaka, Kazuyuki Kainou, Keiji Miki, Kazumi Watase, Yasutake Yaguchi
  • Patent number: 6559528
    Abstract: Disclosed is a semiconductor device 10 comprising a first semiconductor element 11 with an arrangement of first element electrodes 12, a second semiconductor element 13 with an arrangement of second element electrodes 14, a connection member 15 electrically connecting together a portion 12b of the first element electrodes 12 and the second element electrodes 14, an insulation layer 17 covering a major surface 11a of the first semiconductor element 11 and a backside surface 13b of the second semiconductor element 13, a wiring layer 22 formed on the insulation layer 17 and electrically connected to the first element electrode portion 12b exposed in an opening portion 21, and an external electrode 23 formed, as a portion of the wiring layer 22, on the insulation layer 17.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: May 6, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazumi Watase, Hiroaki Fujimoto, Ryuichi Sahara, Nozomi Shimoishizaka, Takahiro Kumakawa, Kazuyuki Kaino, Yoshifumi Nakamura
  • Patent number: 6512298
    Abstract: A first element electrode and a second element electrode connected electrically to a semiconductor element on a substrate are formed, and then an insulating film is formed on the substrate including the element electrodes. Thereafter, a first opening for exposing the first element electrode and a second opening for exposing the second element electrode are formed on the insulating film. Then, a first external electrode connected to the first element electrode via the first opening is formed immediately above the first element electrode. Furthermore, a second external electrode and a connecting wire having one end connected to the second element electrode via the second opening and the other end connected to the second external electrode are formed on the insulating film.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: January 28, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Ryuichi Sahara, Kazumi Watase, Takahiro Kumakawa, Kazuyuki Kainoh, Nozomi Shimoishizaka
  • Publication number: 20030006493
    Abstract: The semiconductor device includes a first semiconductor chip having first electrodes on a fringe region of a main surface thereof, and a second semiconductor chip smaller in area than the first semiconductor chip and having second electrodes on a main surface thereof. The first semiconductor chip and the second semiconductor chip are connected together by bonding a surface of the second semiconductor chip that is opposite to the main surface thereof to a region of the main surface of the first semiconductor chip other than the fringe region. The first electrodes are connected to the second electrodes by wirings formed over the main surface of the first semiconductor chip, a side surface of the second semiconductor chip and the main surface of the second semiconductor chip.
    Type: Application
    Filed: July 1, 2002
    Publication date: January 9, 2003
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Nozomi Shimoishizaka, Toshiyuki Fukuda
  • Publication number: 20020151104
    Abstract: A first element electrode and a second element electrode connected electrically to a semiconductor element on a substrate are formed, and then an insulating film is formed on the substrate including the element electrodes. Thereafter, a first opening for exposing the first element electrode and a second opening for exposing the second element electrode are formed on the insulating film. Then, a first external electrode connected to the first element electrode via the first opening is formed immediately above the first element electrode. Furthermore, a second external electrode and a connecting wire having one end connected to the second element electrode via the second opening and the other end connected to the second external electrode are formed on the insulating film.
    Type: Application
    Filed: June 10, 2002
    Publication date: October 17, 2002
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Ryuichi Sahara, Kazumi Watase, Takahiro Kumakawa, Kazuyuki Kainoh, Nozomi Shimoishizaka
  • Publication number: 20020063340
    Abstract: A first element electrode and a second element electrode connected electrically to a semiconductor element on a substrate are formed, and then an insulating film is formed on the substrate including the element electrodes. Thereafter, a first opening for exposing the first element electrode and a second opening for exposing the second element electrode are formed on the insulating film. Then, a first external electrode connected to the first element electrode via the first opening is formed immediately above the first element electrode. Furthermore, a second external electrode and a connecting wire having one end connected to the second element electrode via the second opening and the other end connected to the second external electrode are formed on the insulating film.
    Type: Application
    Filed: October 29, 2001
    Publication date: May 30, 2002
    Inventors: Ryuichi Sahara, Kazumi Watase, Takahiro Kumakawa, Kazuyuki Kainoh, Nozomi Shimoishizaka
  • Publication number: 20020000655
    Abstract: A low elasticity layer (20) having an opening in an electrode arranging area where element electrodes are disposed is provided on a main surface of a semiconductor substrate (10). On the low elasticity layer (20), lands (32) serving as external electrodes are disposed, and pads (30) on the element electrodes, the lands (32) and metal wires (31) for connecting them are integrally formed as a metal wiring pattern (33). A solder resist film (50) having an opening for exposing a part of each land (32) is formed, and a metal ball (40) is provided on the land (32) in the opening. The low elasticity layer (20) absorbs thermal stress and the like caused in heating or cooling the semiconductor device, so as to prevent disconnection of the metal wires (31).
    Type: Application
    Filed: August 22, 2001
    Publication date: January 3, 2002
    Inventors: Nozomi Shimoishizaka, Ryuichi Sahara, Yoshifumi Nakamura, Takahiro Kumakawa, Shinji Murakami, Yutaka Harada
  • Patent number: 6313532
    Abstract: A low elasticity layer (20) having an opening in an electrode arranging area where element electrodes are disposed is provided on a main surface of a semiconductor substrate (10). On the low elasticity layer (20), lands (32) serving as external electrodes are disposed, and pads (30) on the element electrodes, the lands (32) and metal wires (31) for connecting them are integrally formed as a metal wiring pattern (33). A solder resist film (50) having an opening for exposing a part of each land (32) is formed, and a metal ball (40) is provided on the land (32) in the opening. The low elasticity layer (20) absorbs thermal stress and the like caused in heating or cooling the semiconductor device, so as to prevent disconnection of the metal wires (31).
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: November 6, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Nozomi Shimoishizaka, Ryuichi Sahara, Yoshifumi Nakamura, Takahiro Kumakawa, Shinji Murakami, Yutaka Harada
  • Publication number: 20010033021
    Abstract: A low elasticity layer (20) having an opening in an electrode arranging area where element electrodes are disposed is provided on a main surface of a semiconductor substrate (10). On the low elasticity layer (20), lands (32) serving as external electrodes are disposed, and pads (30) on the element electrodes, the lands (32) and metal wires (31) for connecting them are integrally formed as a metal wiring pattern (33). A solder resist film (50) having an opening for exposing a part of each land (32) is formed, and a metal ball (40) is provided on the land (32) in the opening. The low elasticity layer (20) absorbs thermal stress and the like caused in heating or cooling the semiconductor device, so as to prevent disconnection of the metal wires (31).
    Type: Application
    Filed: June 25, 2001
    Publication date: October 25, 2001
    Inventors: Nozomi Shimoishizaka, Ryuichi Sahara, Yoshifumi Nakamura, Takahiro Kumakawa, Shinji Murakami, Yutaka Harada
  • Publication number: 20010015496
    Abstract: Disclosed is a semiconductor device 10 comprising a first semiconductor element 11 with an arrangement of first element electrodes 12, a second semiconductor element 13 with an arrangement of second element electrodes 14, a connection member 15 electrically connecting together a portion 12b of the first element electrodes 12 and the second element electrodes 14, an insulation layer 17 covering a major surface 11a of the first semiconductor element 11 and a backside surface 13b of the second semiconductor element 13, a wiring layer 22 formed on the insulation layer 17 and electrically connected to the first element electrode portion 12b exposed in an opening portion 21, and an external electrode 23 formed, as a portion of the wiring layer 22, on the insulation layer 17.
    Type: Application
    Filed: February 20, 2001
    Publication date: August 23, 2001
    Inventors: Kazumi Watase, Hiroaki Fujimoto, Ryuichi Sahara, Nozomi Shimoishizaka, Takahiro Kumakawa, Kazuyuki Kaino, Yoshifumi Nakamura