Patents by Inventor Kenya Hironaga

Kenya Hironaga 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: 10050011
    Abstract: Provided is a semiconductor device having improved reliability. In the semiconductor device in an embodiment, a mark is provided correspondingly to the bonding area of a belt-like wiring exposed from an opening provided in a solder resist. As a result, in an alignment step for the wire bonding area, the coordinate position of the wire bonding area can be adjusted using not the end portion of the opening formed in the solder resist, but the mark formed correspondingly to the wire bonding area as a reference. Also, in the semiconductor device in the embodiment, the mark serving as a characteristic pattern is formed. This allows the wire bonding area to be adjusted based on camera recognition.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: August 14, 2018
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Kenya Hironaga, Masatoshi Yasunaga, Tatsuya Hirai, Soshi Kuroda
  • Publication number: 20170162539
    Abstract: Provided is a semiconductor device having improved reliability. In the semiconductor device in an embodiment, a mark is provided correspondingly to the bonding area of a belt-like wiring exposed from an opening provided in a solder resist. As a result, in an alignment step for the wire bonding area, the coordinate position of the wire bonding area can be adjusted using not the end portion of the opening formed in the solder resist, but the mark formed correspondingly to the wire bonding area as a reference. Also, in the semiconductor device in the embodiment, the mark serving as a characteristic pattern is formed. This allows the wire bonding area to be adjusted based on camera recognition.
    Type: Application
    Filed: January 25, 2017
    Publication date: June 8, 2017
    Inventors: Kenya HIRONAGA, Masatoshi YASUNAGA, Tatsuya HIRAI, Soshi KURODA
  • Patent number: 9589923
    Abstract: Provided is a semiconductor device having improved reliability. In the semiconductor device in an embodiment, a mark is provided correspondingly to the bonding area of a belt-like wiring exposed from an opening provided in a solder resist. As a result, in an alignment step for the wire bonding area, the coordinate position of the wire bonding area can be adjusted using not the end portion of the opening formed in the solder resist, but the mark formed correspondingly to the wire bonding area as a reference. Also, in the semiconductor device in the embodiment, the mark serving as a characteristic pattern is formed. This allows the wire bonding area to be adjusted based on camera recognition.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: March 7, 2017
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Kenya Hironaga, Masatoshi Yasunaga, Tatsuya Hirai, Soshi Kuroda
  • Publication number: 20150371967
    Abstract: Provided is a semiconductor device having improved reliability. In the semiconductor device in an embodiment, a mark is provided correspondingly to the bonding area of a belt-like wiring exposed from an opening provided in a solder resist. As a result, in an alignment step for the wire bonding area, the coordinate position of the wire bonding area can be adjusted using not the end portion of the opening formed in the solder resist, but the mark formed correspondingly to the wire bonding area as a reference. Also, in the semiconductor device in the embodiment, the mark serving as a characteristic pattern is formed. This allows the wire bonding area to be adjusted based on camera recognition.
    Type: Application
    Filed: August 31, 2015
    Publication date: December 24, 2015
    Inventors: Kenya HIRONAGA, Masatoshi YASUNAGA, Tatsuya HIRAI, Soshi KURODA
  • Patent number: 9130062
    Abstract: Provided is a semiconductor device having improved reliability. In the semiconductor device in an embodiment, a mark is provided correspondingly to the bonding area of a belt-like wiring exposed from an opening provided in a solder resist. As a result, in an alignment step for the wire bonding area, the coordinate position of the wire bonding area can be adjusted using not the end portion of the opening formed in the solder resist, but the mark formed correspondingly to the wire bonding area as a reference. Also, in the semiconductor device in the embodiment, the mark serving as a characteristic pattern is formed. This allows the wire bonding area to be adjusted based on camera recognition.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: September 8, 2015
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Kenya Hironaga, Masatoshi Yasunaga, Tatsuya Hirai, Soshi Kuroda
  • Patent number: 9087816
    Abstract: To achieve a reduction in cost of a semiconductor device, in a common board (a wiring board), a plurality of bonding leads each extend toward the center of the board, and a solder resist film as a die bonding region supporting a minimum chip is coated with a die bonding material. With this, even when a first semiconductor chip as a large chip is mounted, wire bonding can be performed without causing the die bonding material to cover the bonding leads. Thus, development cost can be reduced to reduce the cost of the semiconductor device (LGA).
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: July 21, 2015
    Assignee: Renesas Electronics Corporation
    Inventors: Soshi Kuroda, Kenya Hironaga, Hironori Matsushima, Masatoshi Yasunaga, Akira Yamazaki
  • Patent number: 9024454
    Abstract: To improve reliability of a semiconductor device in which wire bonding using a wire made of copper is performed. A semiconductor device is configured so that one of end parts (wide width part) of a copper wire is joined via a bump on a pad (electrode pad) formed over a main surface (first main surface) of a semiconductor chip of the semiconductor device. The bump is made of gold, which is a metal material having a hardness lower than that of copper, and the width of the bump is narrower than the width of the wide width part of the wire.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: May 5, 2015
    Assignee: Renesas Electronics Corporation
    Inventors: Masatoshi Yasunaga, Hironori Matsushima, Kenya Hironaga, Soshi Kuroda
  • Publication number: 20140273353
    Abstract: To improve reliability of a semiconductor device in which wire bonding using a wire made of copper is performed. A semiconductor device is configured so that one of end parts (wide width part) of a copper wire is joined via a bump on a pad (electrode pad) formed over a main surface (first main surface) of a semiconductor chip of the semiconductor device. The bump is made of gold, which is a metal material having a hardness lower than that of copper, and the width of the bump is narrower than the width of the wide width part of the wire.
    Type: Application
    Filed: June 2, 2014
    Publication date: September 18, 2014
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventors: Masatoshi YASUNAGA, Hironori MATSUSHIMA, Kenya HIRONAGA, Soshi KURODA
  • Patent number: 8772952
    Abstract: To improve reliability of a semiconductor device in which wire bonding using a wire made of copper is performed. A semiconductor device is configured so that one of end parts (wide width part) of a copper wire is joined via a bump on a pad (electrode pad) formed over a main surface (first main surface) of a semiconductor chip of the semiconductor device. The bump is made of gold, which is a metal material having a hardness lower than that of copper, and the width of the bump is narrower than the width of the wide width part of the wire.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: July 8, 2014
    Assignee: Renesas Electronics Corporation
    Inventors: Masatoshi Yasunaga, Hironori Matsushima, Kenya Hironaga, Soshi Kuroda
  • Publication number: 20140175678
    Abstract: To achieve a reduction in cost of a semiconductor device, in a common board (a wiring board), a plurality of bonding leads each extend toward the center of the board, and a solder resist film as a die bonding region supporting a minimum chip is coated with a die bonding material. With this, even when a first semiconductor chip as a large chip is mounted, wire bonding can be performed without causing the die bonding material to cover the bonding leads. Thus, development cost can be reduced to reduce the cost of the semiconductor device (LGA).
    Type: Application
    Filed: February 26, 2014
    Publication date: June 26, 2014
    Applicant: Renesas Electronics Corporation
    Inventors: Soshi Kuroda, Kenya Hironaga, Hironori Matsushima, Masatoshi Yasunaga, Akira Yamazaki
  • Patent number: 8692383
    Abstract: To achieve a reduction in cost of a semiconductor device, in a common board (a wiring board), a plurality of bonding leads each extend toward the center of the board, and a solder resist film as a die bonding region supporting a minimum chip is coated with a die bonding material. With this, even when a first semiconductor chip as a large chip is mounted, wire bonding can be performed without causing the die bonding material to cover the bonding leads. Thus, development cost can be reduced to reduce the cost of the semiconductor device (LGA).
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: April 8, 2014
    Assignee: Renesas Electronics Coporation
    Inventors: Soshi Kuroda, Kenya Hironaga, Hironori Matsushima, Masatoshi Yasunaga, Akira Yamazaki
  • Publication number: 20140073068
    Abstract: Provided is a semiconductor device having improved reliability. In the semiconductor device in an embodiment, a mark is provided correspondingly to the bonding area of a belt-like wiring exposed from an opening provided in a solder resist. As a result, in an alignment step for the wire bonding area, the coordinate position of the wire bonding area can be adjusted using not the end portion of the opening formed in the solder resist, but the mark formed correspondingly to the wire bonding area as a reference. Also, in the semiconductor device in the embodiment, the mark serving as a characteristic pattern is formed. This allows the wire bonding area to be adjusted based on camera recognition.
    Type: Application
    Filed: September 12, 2013
    Publication date: March 13, 2014
    Applicant: Renesas Electronics Corporation
    Inventors: Kenya HIRONAGA, Masatoshi YASUNAGA, Tatsuya HIRAI, Soshi KURODA
  • Patent number: 8629002
    Abstract: To provide a technology capable of preventing the deterioration of the reliability of semiconductor devices caused by the gasification of a part of components of the material constituting a wiring substrate. A wiring layer constituting a circuit pattern is formed over each of the front and rear surfaces of a glass epoxy substrate, and after the formation of a solder resist covering the wiring layer while exposing a part of the wiring layer and prior to a heat treatment (first heat treatment) at 100° C. to 150° C. for dehumidification, a heat treatment (second heat treatment) at 160° C. to 230° C. for gasifying and discharging an organic solvent contained in the material constituting a wiring substrate is performed for the wiring substrate.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: January 14, 2014
    Assignee: Renesas Electronics Corporation
    Inventors: Soshi Kuroda, Masatoshi Yasunaga, Hironori Matsushima, Kenya Hironaga
  • Patent number: 8605277
    Abstract: Reliability of a semiconductor device is improved. In a flatness inspection of BGA (semiconductor device), there is formed a flatness standard where a permissible range in the direction of (+) of flatness at normal temperature is smaller than a permissible range in the direction of (?). With use of the above flatness standard, a flatness inspection of the semiconductor device at normal temperature is performed to determine whether the mounted item is non-defective or defective. With the above process, defective mounting caused by a package warp when heated during reflow soldering etc. is reduced and reliability of BGA is improved. At the same time, flatness management of a substrate-type semiconductor device with better consideration of a mounting state can be performed.
    Type: Grant
    Filed: September 24, 2011
    Date of Patent: December 10, 2013
    Assignee: Renesas Electronics Corporation
    Inventors: Satoshi Yamada, Takashi Karashima, Kenya Hironaga, Masatoshi Yasunaga, Yuji Fujimoto
  • Patent number: 8334172
    Abstract: Technology capable of preventing the deterioration of the reliability of semiconductor devices caused by the gasification of a part of the material constituting a wiring substrate is provided. A wiring layer constituting a circuit pattern is formed over each of the front and rear surfaces of a glass epoxy substrate, and after the formation of a solder resist covering the wiring layer while exposing a part of the wiring layer and prior to a heat treatment (first heat treatment) at 100° C. to 150° C. for dehumidification, a heat treatment (second heat treatment) at 160° C. to 230° C. for gasifying and discharging an organic solvent contained in the material constituting a wiring substrate is performed for the wiring substrate.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: December 18, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Soshi Kuroda, Masatoshi Yasunaga, Hironori Matsushima, Kenya Hironaga
  • Publication number: 20120081702
    Abstract: Reliability of a semiconductor device is improved. In a flatness inspection of BGA (semiconductor device), there is formed a flatness standard where a permissible range in the direction of (+) of flatness at normal temperature is smaller than a permissible range in the direction of (?). With use of the above flatness standard, a flatness inspection of the semiconductor device at normal temperature is performed to determine whether the mounted item is non-defective or defective. With the above process, defective mounting caused by a package warp when heated during reflow soldering etc. is reduced and reliability of BGA is improved. At the same time, flatness management of a substrate-type semiconductor device with better consideration of a mounting state can be performed.
    Type: Application
    Filed: September 24, 2011
    Publication date: April 5, 2012
    Inventors: Satoshi YAMADA, Takashi KARASHIMA, Kenya HIRONAGA, Masatoshi YASUNAGA, Yuji FUJIMOTO
  • Publication number: 20120061850
    Abstract: To achieve a reduction in cost of a semiconductor device, in a common board (a wiring board), a plurality of bonding leads each extend toward the center of the board, and a solder resist film as a die bonding region supporting a minimum chip is coated with a die bonding material. With this, even when a first semiconductor chip as a large chip is mounted, wire bonding can be performed without causing the die bonding material to cover the bonding leads. Thus, development cost can be reduced to reduce the cost of the semiconductor device (LGA).
    Type: Application
    Filed: September 13, 2011
    Publication date: March 15, 2012
    Inventors: Soshi KURODA, Kenya Hironaga, Hironori Matsushima, Masatoshi Yasunaga, Akira Yamazaki
  • Publication number: 20110201155
    Abstract: To provide a technology capable of preventing the deterioration of the reliability of semiconductor devices caused by the gasification of a part of components of the material constituting a wiring substrate. A wiring layer constituting a circuit pattern is formed over each of the front and rear surfaces of a glass epoxy substrate, and after the formation of a solder resist covering the wiring layer while exposing a part of the wiring layer and prior to a heat treatment (first heat treatment) at 100° C. to 150° C. for dehumidification, a heat treatment (second heat treatment) at 160° C. to 230° C. for gasifying and discharging an organic solvent contained in the material constituting a wiring substrate is performed for the wiring substrate.
    Type: Application
    Filed: February 9, 2011
    Publication date: August 18, 2011
    Inventors: Soshi Kuroda, Masatoshi Yasunaga, Hironori Matsushima, Kenya Hironaga
  • Publication number: 20110074019
    Abstract: To improve reliability of a semiconductor device in which wire bonding using a wire made of copper is performed. A semiconductor device is configured so that one of end parts (wide width part) of a copper wire is joined via a bump on a pad (electrode pad) formed over a main surface (first main surface) of a semiconductor chip of the semiconductor device. The bump is made of gold, which is a metal material having a hardness lower than that of copper, and the width of the bump is narrower than the width of the wide width part of the wire.
    Type: Application
    Filed: September 23, 2010
    Publication date: March 31, 2011
    Inventors: Masatoshi YASUNAGA, Hironori Matsushima, Kenya Hironaga, Soshi Kuroda
  • Publication number: 20100320623
    Abstract: A multi-pin semiconductor device with improved reliability. In a multi-pin BGA, a plurality of wires for electrically coupling a semiconductor chip and a wiring substrate include a plurality of short and thin first wires located in an inner position and a plurality of second wires longer and thicker than the first wires. Since resin flows in from between thin first wires during resin molding, the resin pushes out air, thereby suppressing formation of voids. The reliability of the multi-pin BGA is thus improved.
    Type: Application
    Filed: June 2, 2010
    Publication date: December 23, 2010
    Inventors: Soshi Kuroda, Masatoshi Yasunaga, Hironori Matsushima, Kenya Hironaga