Patents by Inventor Masahiko Fujisawa

Masahiko Fujisawa 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: 20230382022
    Abstract: The resin sealing apparatus according to the present invention includes a press device for closing and opening an upper mold and a lower mold. The press device includes a fixed platen to which one of the upper mold and the lower mold is fixed and a movable platen to which the other one is fixed, a tie bar fixing the fixed platen and holding the movable platen so that the movable platen can be lifted and lowered, and a drive device lifting and lowering the movable platen. The fixed platen has a fixed portion fixed to the tie bar on the side of a first surface of a main body portion and a bell-shaped portion provided on the side of a second surface opposite to the first surface, and one of the upper mold and the lower mold is fixed to the bell-shaped portion.
    Type: Application
    Filed: March 10, 2023
    Publication date: November 30, 2023
    Applicant: APIC YAMADA CORPORATION
    Inventor: Masahiko Fujisawa
  • Patent number: 11784069
    Abstract: To provide a resin molding apparatus capable of correcting the bending of a workpiece during preheating or the like, improving production efficiency, and preventing the occurrence of defective products. A resin molding apparatus according to the present invention includes: a molding die which performs resin molding of a workpiece W having an electronic component mounted inside a carrier; and a loader which transports the workpiece, the loader includes a frame body which comes into contact with and separates from an outer edge portion of an upper surface of the workpiece, a moving device which moves the frame body up and down, and a chuck claw which comes into contact with an outer edge portion of a lower surface of the workpiece, and the frame body includes a contact portion which is provided over the entire circumference of the outer edge portion in the upper surface of the workpiece.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: October 10, 2023
    Assignee: APIC YAMADA CORPORATION
    Inventors: Masahiko Fujisawa, Hirofumi Saito
  • Patent number: 11699604
    Abstract: A resin molding apparatus that can prevent a workpiece from deflecting during transfer and prevent the occurrence of molding defects due to the deflection is provided. A resin molding apparatus according to the present invention includes a molding mold that molds a workpiece on which an electronic component is mounted inside a carrier with a resin and a loader that transfers the workpiece, the loader includes a chuck that comes into contact with and separates from an outer edge part on a lower surface of the workpiece, a moving device that moves the chuck, and a frame that comes into contact with and separates from an outer edge part on an upper surface of the workpiece, and at least during transfer, the workpiece is able to be interposed between the chuck and the frame.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: July 11, 2023
    Assignee: ABIC YAMADA CORPORATION
    Inventors: Masahiko Fujisawa, Hirofumi Saito
  • Publication number: 20230215784
    Abstract: A preferred aim of the invention is to provide technique for improving reliability of semiconductor devices when using a low-dielectric-constant film having a lower dielectric constant than a silicon oxide film to a part of an interlayer insulating film. More specifically, to achieve the preferred aim, an interlayer insulating film IL1 forming a first fine layer is formed of a middle-Young's-modulus film, and thus it is possible to separate an integrated high-Young's-modulus layer (a semiconductor substrate 1S and a contact interlayer insulating film CIL) and an interlayer insulating film (a low-Young's-modulus film; a low-dielectric-constant film) IL2 forming a second fine layer not to let them directly contact with each other, and stress can be diverged. As a result, film exfoliation of the interlayer insulating film IL2 formed of a low-Young's-modulus film can be prevented and thus reliability of semiconductor devices can be improved.
    Type: Application
    Filed: March 13, 2023
    Publication date: July 6, 2023
    Inventors: Masahiro MATSUMOTO, Masahiko FUJISAWA, Akihiko OSAKI, Atsushi ISHII
  • Publication number: 20220152888
    Abstract: A resin supply apparatus includes a calculation unit for calculating a resin supply pattern based on the shape of a cavity of a resin sealing mold, and a supply unit for supplying a resin to an object to be coated along the resin supply pattern. The resin supply pattern has a plurality of linear paths, and one of mutually adjacent linear paths is inclined with respect to an axis of symmetry that divides a cavity in line symmetry, the other one of the mutually adjacent linear paths is inclined with respect to the one linear path, and a region between the mutually adjacent linear paths is opened to the outside of the object to be coated, at least on a side on which the other linear path is separated from the one linear path.
    Type: Application
    Filed: October 3, 2021
    Publication date: May 19, 2022
    Applicant: APIC YAMADA CORPORATION
    Inventors: Makoto Kawaguchi, Masahiko Fujisawa, Yoshikazu Muramatsu, Minoru Hanazato
  • Publication number: 20220152887
    Abstract: A resin supply apparatus, a resin sealing apparatus, and a method for manufacturing a resin-sealed product are provided. A resin supply apparatus supplies a resin onto a workpiece on which elements are arranged in a first direction and a second direction intersecting the first direction, respectively. The resin supply apparatus includes: an acquisition unit for acquiring arrangement information of the elements on the workpiece; a supply unit for supplying the resin onto the workpiece; a calculation unit for calculating a resin supply pattern based on the arrangement information; and a drive unit for moving at least one of the workpiece and the supply unit relative to the other along the resin supply pattern. The resin supply pattern has linear paths extending along the first direction, and a region between the mutually adjacent linear paths in the plurality of linear paths is opened to the outside of the workpiece.
    Type: Application
    Filed: September 30, 2021
    Publication date: May 19, 2022
    Applicant: APIC YAMADA CORPORATION
    Inventors: Makoto Kawaguchi, Masahiko Fujisawa, Yoshikazu Muramatsu, Minoru Hanazato
  • Publication number: 20210362382
    Abstract: A resin molding device that can hold a thin and large-size workpiece without positional displacement when the workpiece is conveyed even if dimensional tolerance and rigidity are different, and can convey the workpiece to a mold frame without losing flatness or damage is provided. When a loader (4) holds a workpiece (W) aligned by a preheating part (10), a center position of a loader hand (4b) is aligned with a center position of the workpiece (W) according to an amount of positional displacement between an external form position of the workpiece (W) and a reference position in the X-Y direction and the workpiece (W) is then held.
    Type: Application
    Filed: April 22, 2021
    Publication date: November 25, 2021
    Applicant: APIC YAMADA CORPORATION
    Inventors: Masahiko FUJISAWA, Hirofumi SAITO
  • Publication number: 20210362379
    Abstract: A resin molding device that is easy to handle until a thin and large-size workpiece is delivered to a loader, and can supply the workpiece to a mold frame while preventing the workpiece from losing its flatness and being damaged is provided. A resin molding device includes a workpiece transfer part (2) that reciprocates between a first position and a second position and transfers a workpiece (W), and in the workpiece transfer part (2), a holder plate (5) larger than an external form of the workpiece and having a thick plate thickness is mounted on a transfer part main body (2a), and the workpiece (W) that is positioned with respect to and overlaps the holder plate (5) based on the external form is transferred.
    Type: Application
    Filed: May 13, 2021
    Publication date: November 25, 2021
    Applicant: APIC YAMADA CORPORATION
    Inventors: Masahiko Fujisawa, Hirofumi Saito
  • Publication number: 20210351045
    Abstract: A resin molding apparatus and a cleaning method of a workpiece which can prevent a workpiece from being carried into a mold die in a state where particles (dust) are adhered to the workpiece, and can prevent deterioration of molding quality. A resin molding apparatus according to the present invention, in which a workpiece with an electronic component mounted on a carrier and a mold resin are carried into a mold die, includes: a press part having the mold die for clamping and resin-sealing the workpiece and the mold resin; and a cleaning apparatus for cleaning a back surface of the workpiece conveyed to the press part, wherein the electronic component is not mounted on the back surface. The cleaning apparatus is arranged at a position overlapping a conveyance path of the workpiece on the upstream side of the press part.
    Type: Application
    Filed: March 2, 2021
    Publication date: November 11, 2021
    Applicant: APIC YAMADA CORPORATION
    Inventors: Masahiko FUJISAWA, Hirofumi SAITO
  • Publication number: 20210335632
    Abstract: To provide a resin molding apparatus capable of correcting the bending of a workpiece during preheating or the like, improving production efficiency, and preventing the occurrence of defective products. A resin molding apparatus according to the present invention includes: a molding die which performs resin molding of a workpiece W having an electronic component mounted inside a carrier; and a loader which transports the workpiece, the loader includes a frame body which comes into contact with and separates from an outer edge portion of an upper surface of the workpiece, a moving device which moves the frame body up and down, and a chuck claw which comes into contact with an outer edge portion of a lower surface of the workpiece, and the frame body includes a contact portion which is provided over the entire circumference of the outer edge portion in the upper surface of the workpiece.
    Type: Application
    Filed: April 28, 2021
    Publication date: October 28, 2021
    Applicant: APIC YAMADA CORPORATION
    Inventors: Masahiko Fujisawa, Hirofumi Saito
  • Publication number: 20210335633
    Abstract: A resin molding apparatus that can prevent a workpiece from deflecting during transfer and prevent the occurrence of molding defects due to the deflection is provided. A resin molding apparatus according to the present invention includes a molding mold that molds a workpiece on which an electronic component is mounted inside a carrier with a resin and a loader that transfers the workpiece, the loader includes a chuck that comes into contact with and separates from an outer edge part on a lower surface of the workpiece, a moving device that moves the chuck, and a frame that comes into contact with and separates from an outer edge part on an upper surface of the workpiece, and at least during transfer, the workpiece is able to be interposed between the chuck and the frame.
    Type: Application
    Filed: April 28, 2021
    Publication date: October 28, 2021
    Applicant: APIC YAMADA CORPORATION
    Inventors: Masahiko Fujisawa, Hirofumi Saito
  • Publication number: 20200211931
    Abstract: A preferred aim of the invention is to provide technique for improving reliability of semiconductor devices when using a low-dielectric-constant film having a lower dielectric constant than a silicon oxide film to apart of an interlayer insulating film. More specifically, to achieve the preferred aim, an interlayer insulating film IL1 forming a first fine layer is formed of a middle-Young's-modulus film, and thus it is possible to separate an integrated high-Young's-modulus layer (a semiconductor substrate 1S and a contact interlayer insulating film CIL) and an interlayer insulating film (a low-Young's-modulus film; a low-dielectric-constant film) IL2 forming a second fine layer not to let them directly contact with each other, and stress can be diverged. As a result, film exfoliation of the interlayer insulating film IL2 formed of a low-Young's-modulus film can be prevented and thus reliability of semiconductor devices can be improved.
    Type: Application
    Filed: March 6, 2020
    Publication date: July 2, 2020
    Inventors: Masahiro MATSUMOTO, Masahiko FUJISAWA, Akihiko OSAKI, Atsushi ISHII
  • Patent number: 10475883
    Abstract: In a semiconductor device, a width of a second epitaxial layer is greater than a width of a first epitaxial layer, and a thickness of an end portion of the second epitaxial layer, which is in contact with an element isolation portion, is smaller than a thickness of an end portion of the first epitaxial layer, which is in contact with the element isolation portion, and a second shortest distance between the element isolation portion and a second plug is greater than a first shortest distance between the element isolation portion and a first plug.
    Type: Grant
    Filed: December 10, 2017
    Date of Patent: November 12, 2019
    Assignee: Renesas Electronics Corporation
    Inventors: Masaru Kadoshima, Masahiko Fujisawa
  • Publication number: 20180182850
    Abstract: In a semiconductor device, a width of a second epitaxial layer is greater than a width of a first epitaxial layer, and a thickness of an end portion of the second epitaxial layer, which is in contact with an element isolation portion, is smaller than a thickness of an end portion of the first epitaxial layer, which is in contact with the element isolation portion, and a second shortest distance between the element isolation portion and a second plug is greater than a first shortest distance between the element isolation portion and a first plug.
    Type: Application
    Filed: December 10, 2017
    Publication date: June 28, 2018
    Inventors: Masaru KADOSHIMA, Masahiko FUJISAWA
  • Patent number: 9738014
    Abstract: The compact resin molding machine is capable of efficiently performing a sequence of molding actions from feeding a work and resin to accommodating the molded work. The resin molding machine comprises: a work conveying mechanism including a robot, which has a robot hand for holding the work and which is capable of rotating and linearly moving; a work feeding section for feeding the work; a resin feeding section for feeding the resin; a press section including a molding die set, in which the work is resin-molded; a work accommodating section for accommodating the molded work; and a control section controlling the entire resin molding machine. The work feeding section, the resin feeding section, the press section and the work accommodating section are located to enclose a moving area of the robot of the work conveying mechanism.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: August 22, 2017
    Assignee: APIC YAMADA CORPORATION
    Inventors: Tetsuya Maeyama, Hidemichi Kobayashi, Shusaku Tagami, Yoshikazu Muramatsu, Takayuki Yamazaki, Keiji Koyama, Hideaki Nakazawa, Hiroshi Harayama, Kenji Nishizawa, Makoto Kawaguchi, Masahiko Fujisawa, Hidetoshi Oya
  • Patent number: 9607956
    Abstract: A semiconductor device in which reliability of a bonding pad to which a conductive wire is bonded is achieved. A bonding pad having an OPM structure is formed of an Al—Cu alloy film having a Cu concentration of 2 wt % or more. By increasing the Cu concentration, the Al—Cu alloy film forming the bonding pad is hardened. Therefore, the bonding pad is difficult to be deformed by impact in bonding of a Cu wire, and deformation of an OPM film as following the deformation of the bonding pad can be reduced. In this manner, concentration of a stress on the OPM film caused by the impact from the Cu wire can be reduced, and therefore, the breakage of the OPM film can be prevented.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: March 28, 2017
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Masahiro Matsumoto, Kazuyoshi Maekawa, Masahiko Fujisawa
  • Publication number: 20160268222
    Abstract: A semiconductor device in which reliability of a bonding pad to which a conductive wire is bonded is achieved. A bonding pad having an OPM structure is formed of an Al—Cu alloy film having a Cu concentration of 2 wt % or more. By increasing the Cu concentration, the Al—Cu alloy film forming the bonding pad is hardened. Therefore, the bonding pad is difficult to be deformed by impact in bonding of a Cu wire, and deformation of an OPM film as following the deformation of the bonding pad can be reduced. In this manner, concentration of a stress on the OPM film caused by the impact from the Cu wire can be reduced, and therefore, the breakage of the OPM film can be prevented.
    Type: Application
    Filed: May 26, 2016
    Publication date: September 15, 2016
    Inventors: Masahiro Matsumoto, Kazuyoshi Maekawa, Masahiko Fujisawa
  • Patent number: 9406628
    Abstract: A semiconductor device in which reliability of a bonding pad to which a conductive wire is bonded is achieved. A bonding pad having an OPM structure is formed of an Al—Cu alloy film having a Cu concentration of 2 wt % or more. By increasing the Cu concentration, the Al—Cu alloy film forming the bonding pad is hardened. Therefore, the bonding pad is difficult to be deformed by impact in bonding of a Cu wire, and deformation of an OPM film as following the deformation of the bonding pad can be reduced. In this manner, concentration of a stress on the OPM film caused by the impact from the Cu wire can be reduced, and therefore, the breakage of the OPM film can be prevented.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: August 2, 2016
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Masahiro Matsumoto, Kazuyoshi Maekawa, Masahiko Fujisawa
  • Patent number: 9238314
    Abstract: The method is capable of resin-molding one side face of a work in a molding die set, in which the work is sucked and held on at least one of clamping faces and resin-molded in a cavity concave section. The method comprises the steps of: sucking and holding a release film which covers at least one of the clamping faces of the molding die set; setting the work in the molding die set; sucking the other side face of the work through a work sucking hole of the release film, which is formed before or after holding the release film, so as to hold the work on the clamping face; closing the molding die set so as to clamp the work; and pressurizing and heating the resin, which has been accommodated in the cavity concave section, with resin.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: January 19, 2016
    Assignee: APIC YAMADA CORPORATION
    Inventors: Shusaku Tagami, Yoshikazu Muramatsu, Masanori Maekawa, Hideaki Nakazawa, Masahiko Fujisawa, Takuya Miyamoto
  • Publication number: 20140284790
    Abstract: A semiconductor device in which reliability of a bonding pad to which a conductive wire is bonded is achieved. A bonding pad having an OPM structure is formed of an Al—Cu alloy film having a Cu concentration of 2 wt % or more. By increasing the Cu concentration, the Al—Cu alloy film forming the bonding pad is hardened. Therefore, the bonding pad is difficult to be deformed by impact in bonding of a Cu wire, and deformation of an OPM film as following the deformation of the bonding pad can be reduced. In this manner, concentration of a stress on the OPM film caused by the impact from the Cu wire can be reduced, and therefore, the breakage of the OPM film can be prevented.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 25, 2014
    Applicant: Renesas Electronics Corporation
    Inventors: Masahiro Matsumoto, Kazuyoshi Maekawa, Masahiko Fujisawa