Patents by Inventor Aizou Kaneda

Aizou Kaneda 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: 7781896
    Abstract: A semiconductor chip is attached to a lead frame with a filmy organic die-bonding material having a water absorption of 1.5% by volume or less; having a saturation moisture absorption of 1.0% by volume or less, having a residual volatile component in an amount not more than 3.0% by weight, having a modulus of elasticity of 10 MPa or less at a temperature of 250° C. The semiconductor device thus obtained can be free from occurrence of reflow cracks during reflow soldering for the packaging of semiconductor devices.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: August 24, 2010
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Shinji Takeda, Takashi Masuko, Masami Yusa, Tooru Kikuchi, Yasuo Miyadera, Iwao Maekawa, Mitsuo Yamasaki, Akira Kageyama, Aizou Kaneda
  • Patent number: 7560307
    Abstract: There are disclosed a resin composition comprising (A) a heat-resistant resin soluble in a solvent at room temperature, (B) a heat-resistant resin which is insoluble in a solvent at room temperature but becomes soluble by heating, and (C) a solvent; a heat-resistant resin paste further containing (D) particles or liquid state material D showing rubber elasticity; and a semiconductor device using the same and a method for producing the same.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: July 14, 2009
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Yasuhiro Yano, Hidekazu Matsuura, Yoshihiro Nomura, Yoshii Morishita, Touichi Sakata, Hiroshi Nishizawa, Toshiaki Tanaka, Masaaki Yasuda, Aizou Kaneda
  • Publication number: 20080290529
    Abstract: A semiconductor chip is attached to a lead frame with a filmy organic die-bonding material having a water absorption of 1.5% by volume or less; having a saturation moisture absorption of 1.0% by volume or less, having a residual volatile component in an amount not more than 3.0% by weight, having a modulus of elasticity of 10 MPa or less at a temperature of 250 ° C. The semiconductor device thus obtained can be free from occurrence of reflow cracks during reflow soldering for the packaging of semiconductor devices.
    Type: Application
    Filed: June 13, 2008
    Publication date: November 27, 2008
    Applicant: Hitachi Chemical Co., Ltd.
    Inventors: Shinji TAKEDA, Takashi Masuko, Masami Yusa, Tooru Kikuchi, Yasuo Miyadera, Iwao Maekawa, Mitsuo Yamasaki, Akira Kageyama, Aizou Kaneda
  • Patent number: 7387914
    Abstract: A semiconductor chip is attached to a lead frame with a filmy organic die-bonding material having a water absorption of 1.5% by volume or less; having a saturation moisture absorption of 1.0% by volume or less, having a residual volatile component in an amount not more than 3.0% by weight, having a modulus of elasticity of 10 MPa or less at a temperature of 250° C. The semiconductor device thus obtained can be free from occurrence of reflow cracks during reflow soldering for the packaging of semiconductor devices.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: June 17, 2008
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Shinji Takeda, Takashi Masuko, Masami Yusa, Tooru Kikuchi, Yasuo Miyadera, Iwao Maekawa, Mitsuo Yamasaki, Akira Kageyama, Aizou Kaneda
  • Publication number: 20060180908
    Abstract: There are disclosed a resin composition comprising (A) a heat-resistant resin soluble in a solvent at room temperature, (B) a heat-resistant resin which is insoluble in a solvent at room temperature but becomes soluble by heating, and (C) a solvent; a heat-resistant resin paste further containing (D) particles or liquid state material D showing rubber elasticity; and a semiconductor device using the same and a method for producing the same.
    Type: Application
    Filed: April 14, 2006
    Publication date: August 17, 2006
    Inventors: Yasuhiro Yano, Hidekazu Matsuura, Yoshihiro Nomura, Yoshii Morishita, Touichi Sakata, Hiroshi Nishizawa, Toshiaki Tanaka, Masaaki Yasuda, Aizou Kaneda
  • Publication number: 20060180903
    Abstract: A semiconductor chip is attached to a lead frame with a filmy organic die-bonding material having a water absorption of 1.5% by volume or less; having a saturation moisture absorption of 1.0% by volume or less, having a residual volatile component in an amount not more than 3.0% by weight, having a modulus of elasticity of 10 MPa or less at a temperature of 250° C. The semiconductor device thus obtained can be free from occurrence of reflow cracks during reflow soldering for the packaging of semiconductor devices.
    Type: Application
    Filed: April 24, 2006
    Publication date: August 17, 2006
    Applicant: Hitachi Chemical Co., Ltd.
    Inventors: Shinji Takeda, Takashi Masuko, Masami Yusa, Tooru Kikuchi, Yasuo Miyadera, Iwao Maekawa, Mitsuo Yamasaki, Akira Kageyama, Aizou Kaneda
  • Patent number: 7078094
    Abstract: A semiconductor chip is attached to a lead frame with a filmy organic die-bonding material having a water absorption of 1.5% by volume or less; having a saturation moisture absorption of 1.0% by volume or less, having a residual volatile component in an amount not more than 3.0% by weight, having a modulus of elasticity of 10 MPa or less at a temperature of 250° C. The semiconductor device thus obtained can be free from occurrence of reflow cracks during reflow soldering for the packaging of semiconductor devices.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: July 18, 2006
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Shinji Takeda, Takashi Masuko, Masami Yusa, Tooru Kikuchi, Yasuo Miyadera, Iwao Maekawa, Mitsuo Yamasaki, Akira Kageyama, Aizou Kaneda
  • Patent number: 7061081
    Abstract: There are disclosed a resin composition comprising (A) a heat-resistant resin soluble in a solvent at room temperature, (B) a heat-resistant resin which is insoluble in a solvent at room temperature but becomes soluble by heating, and (C) a solvent; a heat-resistant resin paste further containing (D) particles or liquid state material D showing rubber elasticity; and a semiconductor device using the same and a method for producing the same.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: June 13, 2006
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Yasuhiro Yano, Hidekazu Matsuura, Yoshihiro Nomura, Yoshii Morishita, Touichi Sakata, Hiroshi Nishizawa, Toshiaki Tanaka, Masaaki Yasuda, Aizou Kaneda
  • Patent number: 7057265
    Abstract: A semiconductor chip is attached to a lead frame with a filmy organic die-bonding material having a water absorption of 1.5% by volume or less; having a saturation moisture absorption of 1.0% by volume or less, having a residual volatile component in an amount not more than 3.0% by weight, having a modulus of elasticity of 10 MPa or less at a temperature of 250° C. The semiconductor device thus obtained can be free from occurrence of reflow cracks during reflow soldering for the packaging of semiconductor devices.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: June 6, 2006
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Shinji Takeda, Takashi Masuko, Masami Yusa, Tooru Kikuchi, Yasuo Miyadera, Iwao Maekawa, Mitsuo Yamasaki, Akira Kageyama, Aizou Kaneda
  • Patent number: 7012320
    Abstract: A semiconductor chip is attached to a lead frame with a filmy organic die-bonding material having a water absorption of 1.5% by volume or less; having a saturation moisture absorption of 1.0% by volume or less, having a residual volatile component in an amount not more than 3.0% by weight, having a modulus of elasticity of 10 MPa or less at a temperature of 250° C. The semiconductor device thus obtained can be free from occurrence of reflow cracks during reflow soldering for the packaging of semiconductor devices.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: March 14, 2006
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Shinji Takeda, Takashi Masuko, Masami Yusa, Tooru Kikuchi, Yasuo Miyadera, Iwao Maekawa, Mitsuo Yamasaki, Akira Kageyama, Aizou Kaneda
  • Patent number: 6855579
    Abstract: A semiconductor chip is attached to a lead frame with a filmy organic die-bonding material having a water absorption of 1.5% by volume or less; having a saturation moisture absorption of 1.0% by volume or less, having a residual volatile component in an amount not more than 3.0% by weight, having a modulus of elasticity of 10 MPa or less at a temperature of 250° C. The semiconductor device thus obtained can be free from occurrence of reflow cracks during reflow soldering for the packaging of semiconductor devices.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: February 15, 2005
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Shinji Takeda, Takashi Masuko, Masami Yusa, Tooru Kikuchi, Yasuo Miyadera, Iwao Maekawa, Mitsuo Yamasaki, Akira Kageyama, Aizou Kaneda
  • Publication number: 20040253770
    Abstract: A semiconductor chip is attached to a lead frame with a filmy organic die-bonding material having a water absorption of 1.5% by volume or less; having a saturation moisture absorption of 1.0% by volume or less, having a residual volatile component in an amount not more than 3.0% by weight, having a modulus of elasticity of 10 MPa or less at a temperature of 250 ° C. The semiconductor device thus obtained can be free from occurrence of reflow cracks during reflow soldering for the packaging of semiconductor devices.
    Type: Application
    Filed: July 15, 2004
    Publication date: December 16, 2004
    Applicant: Hitachi Chemical Company, Ltd.
    Inventors: Shinji Takeda, Takashi Masuko, Masami Yusa, Tooru Kikuchi, Yasuo Miyadera, Iwao Maekawa, Mitsuo Yamasaki, Akira Kageyama, Aizou Kaneda
  • Patent number: 6825249
    Abstract: Provided are a laminating method and machine for successively heating and compression-bonding a film-shaped organic die-bonding material on a leadframe. leadframe 7 is placed on a travelling table 8 and is heated there. A film-shaped organic die-bonding material 2 is punched out and the resulting film is tack-bonded to a die pad on the leadframe. The leadframe with the film tack-bonded thereon is then moved to a position B by the travelling table. After the film is pressed by a compression-bonding element at the position B, a chip is mounted on the film-shaped organic die-bonding material 2. It is therefore possible to bond a film-shaped organic die-bonding material under compression on a leadframe with good productivity but without voids and further to avoid package cracking upon mounting a chip.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: November 30, 2004
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Shinji Takeda, Takashi Masuko, Masami Yusa, Yasuo Miyadera, Mituo Yamasaki, Iwao Maekawa, Akio Kotato, Yuusuke Miyamae, Tadaji Satou, Makoto Saitou, Tooru Kikuchi, Akira Kageyama, Aizou Kaneda
  • Patent number: 6717242
    Abstract: A semiconductor chip is attached to a lead frame with a filmy organic die-bonding material having a water absorption of 1.5% by volume or less; having a saturation moisture absorption of 1.0% by volume or less, having a residual volatile component in an amount not more than 3.0% by weight, having a modulus of elasticity of 10 Mpa or less at a temperature of 259° C. The semiconductor device thus obtained can be free from occurrence of reflow cracks during reflow soldering for the packaging of semiconductor devices.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: April 6, 2004
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Shinji Takeda, Takashi Masuko, Masami Yusa, Tooru Kikuchi, Yasuo Miyadera, Iwao Maekawa, Mitsuo Yamasaki, Akira Kageyama, Aizou Kaneda
  • Publication number: 20030160337
    Abstract: A semiconductor chip is attached to a lead frame with a filmy organic die-bonding material having a water absorption of 1.5% by volume or less; having a saturation moisture absorption of 1.0% by volume or less, having a residual volatile component in an amount not more than 3.0% by weight, having a modulus of elasticity of 10 MPa or less at a temperature of 250° C. The semiconductor device thus obtained can be free from occurrence of reflow cracks during reflow soldering for the packaging of semiconductor devices.
    Type: Application
    Filed: May 2, 2003
    Publication date: August 28, 2003
    Inventors: Shinji Takeda, Takashi Masuko, Masami Yusa, Tooru Kikuchi, Yasuo Miyadera, Iwao Maekawa, Mitsuo Yamasaki, Akira Kageyama, Aizou Kaneda
  • Patent number: 6611064
    Abstract: In the present invention, provided are a semiconductor device having a semiconductor-element-mounting substrate on which a semiconductor element has been mounted via an adhesive having an exothermic-reaction curing start temperature of 130° C. or below as measured with a differential scanning calorimeter at a heating rate of 10° C./minute, and a process for its fabrication.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: August 26, 2003
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Takashi Kousaka, Naoya Suzuki, Toshiaki Tanaka, Masaaki Yasuda, Aizou Kaneda
  • Publication number: 20030082925
    Abstract: There are disclosed a resin composition comprising (A) a heat-resistant resin soluble in a solvent at room temperature, (B) a heat-resistant resin which is insoluble in a solvent at room temperature but becomes soluble by heating, and (C) a solvent; a heat-resistant resin paste further containing (D) particles or liquid state material D showing rubber elasticity; and a semiconductor device using the same and a method for producing the same.
    Type: Application
    Filed: September 6, 2002
    Publication date: May 1, 2003
    Inventors: Yasuhiro Yano, Hidekazu Matsuura, Yoshihiro Nomura, Yoshii Morishita, Touichi Sakata, Hiroshi Nishizawa, Toshiaki Tanaka, Masaaki Yasuda, Aizou Kaneda
  • Patent number: 6404068
    Abstract: A paste composition which comprises as essential ingredients (A) a thermoplastic resin, (B) an epoxy resin, (C) a coupling agent, (D) a powdery inorganic filler, (E) a powder having rubber elasticity and (F) an organic solvent and which, when applied and dried, gives a coating film having a void content of 3% by volume or higher and a water vapor permeability as measured at 40° C. and 90 %RH of 500 g/m2·24 h or less; a protective film which is formed by applying the paste composition to a surface of a semiconductor part and drying it and has a void content of 3% by volume or higher and a water vapor permeability as measured at 40° C. and 90%RH of 500 g/m2·24 h or less; and a semiconductor device having the protective film.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: June 11, 2002
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Toshiaki Tanaka, Takafumi Dohdoh, Tsutomu Kitakatsu, Aizou Kaneda, Masaaki Yasuda, Takashi Kousaka, Akira Kageyama
  • Publication number: 20010035533
    Abstract: A semiconductor chip is attached to a lead frame with a filmy organic die-bonding material having a water absorption of 1.5% by volume or less; having a saturation moisture absorption of 1.0% by volume or less, having a residual volatile component in an amount not more than 3.0% by weight, having a modulus of elasticity of 10 MPa or less at a temperature of 250° C. The semiconductor device thus obtained can be free from occurrence of reflow cracks during reflow soldering for the packaging of semiconductor devices.
    Type: Application
    Filed: February 20, 2001
    Publication date: November 1, 2001
    Inventors: Shinji Takeda, Takashi Masuko, Masami Yusa, Tooru Kikuchi, Yasuo Miyadera, Iwao Maekawa, Mitsuo Yamasaki, Akira Kageyama, Aizou Kaneda
  • Publication number: 20010016384
    Abstract: A semiconductor chip is attached to a lead frame with a filmy organic die-bonding material having a water absorption of 1.5% by volume or less; having a saturation moisture absorption of 1.0% by volume or less, having a residual volatile component in an amount not more than 3.0% by weight, having a modulus of elasticity of 10 MPa or less at a temperature of 250° C. The semiconductor device thus obtained can be free from occurrence of reflow cracks during reflow soldering for the packaging of semiconductor devices.
    Type: Application
    Filed: February 20, 2001
    Publication date: August 23, 2001
    Inventors: Shinji Takeda, Takashi Masuko, Masami Yusa, Tooru Kikuchi, Yasuo Miyadera, Iwao Maekawa, Mitsuo Yamasaki, Akira Kageyama, Aizou Kaneda