Patents by Inventor Toshihiko Toyama

Toshihiko Toyama 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: 20230282613
    Abstract: A manufacturing method of a semiconductor device includes: a first step of, after joining a wire to an electrode using a capillary, forming a wire part by moving the capillary to a third target pointwhile feeding out the wire; a second step of forming a bent part by moving the capillary to a fourth target point while feeding out the wire; a third step of processing the bent part into a planned cut part by repeating lowering and raising of the capillary for multiple times; and a fourth step of cutting the wire at the planned cut part by raising the capillary with a wire clamper closed to form a pin wire.
    Type: Application
    Filed: June 7, 2021
    Publication date: September 7, 2023
    Applicant: SHINKAWA LTD.
    Inventors: Toshihiko TOYAMA, Shinsuke TEI
  • Publication number: 20220310552
    Abstract: A wire bonding apparatus of an aspect includes: a clamp apparatus, having a pair of arms; a stage, moving the clamp apparatus in a horizontal direction; a rod member; a contact detection part, detecting contact between the rod member and the clamp apparatus; and a control apparatus, controlling opening and closing of the pair of arms and an operation of the stage and acquiring position information of the clamp apparatus. The control apparatus obtains an opening amount of the pair of arms based on position information of the clamp apparatus at a time when an outer side surface of a first arm contacts the rod member in a state where the pair of arms are closed and position information of the clamp apparatus at the time when the outer side surface of the first arm contacts the rod member in a state where the pair of arms are open.
    Type: Application
    Filed: September 4, 2020
    Publication date: September 29, 2022
    Applicant: SHINKAWA LTD.
    Inventor: Toshihiko TOYAMA
  • Publication number: 20160358883
    Abstract: A bump forming method includes: a bonding step of bonding the leading end of a wire extending out of the tip of a bonding tool to a first point (X1); a wire pay-out step of moving the bonding tool in a direction away from the first point; a thin portion forming step of pressing a portion of the wire at a second point (X2) on a reference plane using the bonding tool to form a thin portion (64) in the wire; a wire shaping step of shaping the wire bonded to the first point in a manner rising from the reference plane; and a bump forming step of cutting the wire at the thin portion to form a bump (60) having a shape rising from the reference plane at the first point. It is therefore possible to form a bump having a desired height more easily and efficiently.
    Type: Application
    Filed: August 19, 2016
    Publication date: December 8, 2016
    Applicant: SHINKAWA LTD.
    Inventors: HIROAKI YOSHINO, TOSHIHIKO TOYAMA
  • Publication number: 20160020345
    Abstract: The invention is to provide a method of manufacturing I-III-VI and I-II-IV-VI compound semiconductor thin-films, wherein a compound semiconductor crystal is efficiently grown to form a large grain diameter and the content of each of the elements contained in the compound semiconductor can be controlled. A substrate in which a I-III-VI or I-II-IV-VI compound semiconductor thin-film formed on the surface is heated such that a first temperature of the substrate is 100° C. to 700° C., then a non-oxidizing gas heated to a second temperature that is higher than the first temperature is flowed within a chamber so that the compound semiconductor thin-film formed on the surface of the substrate is thermally treated.
    Type: Application
    Filed: March 7, 2014
    Publication date: January 21, 2016
    Applicants: OSAKA UNIVERSITY, KANEKA CORPORATION
    Inventors: Toshihiko Toyama, Takafumi Konishi, Ryotaro Tsuji
  • Patent number: 8678266
    Abstract: A wire bonding method for bonding a ball 11 which is formed at a tip end of a bonding wire to a pad 2 that is a first bond point to form a first bonding part 12 and bonding the wire 10 to an interconnect wiring 4 that is a second bond point to form a second bonding part, thus connecting the pad 2 and the interconnect wiring with the wire, wherein after the ball is bonded to the first bond point and a capillary 6 is ascended, examination is performed to find any bonding failure of the first bonding part; and when the bonding failure at the first bond point is found, then the capillary is caused to descend to execute bonding to bond the first bonding part to the first bond point.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: March 25, 2014
    Assignee: Kabushiki Kaisha Shinkawa
    Inventors: Tatsunari Mii, Toshihiko Toyama
  • Patent number: 8191759
    Abstract: Provided is a wire bonding apparatus including: a wire cutting unit configured to cut a wire by bonding the wire using a capillary and then moving the capillary and a first clamper upward while the first clamper remains closed; and a wire extending unit configured to extend a tail wire from a tip end of the capillary by moving the capillary upward and then moving the capillary and the first clamper upward in a state in which the first clamper is opened and a second clamper is closed. The wire bonding apparatus having such a structure effectively prevents the wire from falling out and bending.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: June 5, 2012
    Assignee: Shinkawa Ltd.
    Inventors: Shinsuke Tei, Toshihiko Toyama
  • Publication number: 20110278349
    Abstract: Provided is a wire bonding apparatus including: a wire cutting unit configured to cut a wire by bonding the wire using a capillary and then moving the capillary and a first clamper upward while the first clamper remains closed; and a wire extending unit configured to extend a tail wire from a tip end of the capillary by moving the capillary upward and then moving the capillary and the first clamper upward in a state in which the first clamper is opened and a second clamper is closed. The wire bonding apparatus having such a structure effectively prevents the wire from falling out and bending.
    Type: Application
    Filed: July 7, 2011
    Publication date: November 17, 2011
    Applicant: SHINKAWA LTD.
    Inventors: Shinsuke Tei, Toshihiko Toyama
  • Patent number: 7910472
    Abstract: A semiconductor device with improved bondability between a wire and a bump and cutting property of the wire to improve the bonding quality. In the semiconductor device, a wire is stacked on a pad as a second bonding point to form a bump having a sloped wedge and a first bent wire convex portion, and a wire is looped from a lead as a first bonding point to the bump and is pressed to the sloped wedge of the bump with a face portion of a tip end of a capillary to bond the wire to the bump. At the same time, the wire is pressed to the first bent wire convex portion using an inner chamfer of a bonding wire hole in the capillary to form a wire bent portion having a bow-shaped cross section. The wire is pulled up and cut at the wire bent portion.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: March 22, 2011
    Assignee: Kabushiki Kaisha Shinkawa
    Inventors: Tatsunari Mii, Toshihiko Toyama, Hiroaki Yoshino
  • Patent number: 7808116
    Abstract: A semiconductor device with improved bondability between a wire and a bump and cutting property of the wire to improve the bonding quality. In the semiconductor device, a wire is stacked on a pad as a second bonding point to form a bump having a sloped wedge and a first bent wire convex portion, and a wire is looped from a lead as a first bonding point to the bump and is pressed to the sloped wedge of the bump with a face portion of a tip end of a capillary to bond the wire to the bump. At the same time, the wire is pressed to the first bent wire convex portion using an inner chamfer of a bonding wire hole in the capillary to form a wire bent portion having a bow-shaped cross section. The wire is pulled up and cut at the wire bent portion.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: October 5, 2010
    Assignee: Kabushiki Kaisha Shinkawa
    Inventors: Tatsunari Mii, Toshihiko Toyama, Horoaki Yoshino
  • Publication number: 20100248470
    Abstract: A semiconductor device with improved bondability between a wire and a bump and cutting property of the wire to improve the bonding quality. In the semiconductor device, a wire is stacked on a pad as a second bonding point to form a bump having a sloped wedge and a first bent wire convex portion, and a wire is looped from a lead as a first bonding point to the bump and is pressed to the sloped wedge of the bump with a face portion of a tip end of a capillary to bond the wire to the bump. At the same time, the wire is pressed to the first bent wire convex portion using an inner chamfer of a bonding wire hole in the capillary to form a wire bent portion having a bow-shaped cross section. The wire is pulled up and cut at the wire bent portion.
    Type: Application
    Filed: June 3, 2010
    Publication date: September 30, 2010
    Inventors: Tatsunari Mii, Toshihiko Toyama, Hiroaki Yoshino
  • Publication number: 20100155455
    Abstract: A wire bonding method for bonding a ball which is formed at a tip end of a bonding wire to a pad that is a first bonding point to form a first bonding part and bonding the wire to an interconnect wiring that is a second bonding point to form a second bonding part, thus connecting the pad and the interconnect wiring with the wire, wherein after the ball is bonded to the first bonding point and a capillary is ascended, examination is performed to find any bonding failure of the first bonding part; and when the bonding failure at the first bonding point is found, then the capillary is caused to descend to execute rebonding to bond the first bonding part to the first bonding point with applying greater energy comprising a longer period of bonding time than last first bonding while pressing the capillary to the first bonding point.
    Type: Application
    Filed: February 22, 2010
    Publication date: June 24, 2010
    Inventors: Tatsunari Mii, Toshihiko Toyama
  • Patent number: 7621436
    Abstract: A wire bonding method including the steps of: descending a capillary 5 from above an external lead 1 to press a wire 10 to such an extent that the wire is not completely connected to the external lead 1, thus forming a thin part 16 in the wire; next ascending the capillary 5 and the thin part 16 to substantially the same height as a first bonding point A, then moving the capillary 5 in a direction away from the first bonding point A, thus making a linear wire portion 18 and then cutting the wire at the thin part 16; then connecting the end 19 (thin part) of the linear wire portion 18 and the wire tip end 20 at the lower end of the capillary 5 are connected to the external lead 1; and then separating the wire tip end 20 from the external lead 1.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: November 24, 2009
    Assignee: Kabushiki Kaisha Shinkawa
    Inventors: Tatsunari Mii, Toshihiko Toyama, Hiroaki Yoshino
  • Publication number: 20090194577
    Abstract: A wire bonding method with the process of performing a first bonding to a pad of a die that is a first bond point, and the process of performing a second bonding to an interconnect wiring (or a lead) that is a second bond point, thus connecting the pad and the interconnect wiring with a wire. A bump is first formed on a pad, and, in a wire cutting step performed during the step of forming the bump, the wire protruding from the tip end of a capillary is bent in the lateral direction to form a bent part, and then the bent part is bonded to the bump, thus completing the first bonding process; after which the wire is bonded to the interconnect wiring, thus completing the second bonding process.
    Type: Application
    Filed: April 7, 2009
    Publication date: August 6, 2009
    Inventors: Tatsunari Mii, Toshihiko Toyama, Shinsuke Tei
  • Publication number: 20080197510
    Abstract: A semiconductor device with improved bondability between a wire and a bump and cutting property of the wire to improve the bonding quality. In the semiconductor device, a wire is stacked on a pad as a second bonding point to form a bump having a sloped wedge and a first bent wire convex portion, and a wire is looped from a lead as a first bonding point to the bump and is pressed to the sloped wedge of the bump with a face portion of a tip end of a capillary to bond the wire to the bump. At the same time, the wire is pressed to the first bent wire convex portion using an inner chamfer of a bonding wire hole in the capillary to form a wire bent portion having a bow-shaped cross section. The wire is pulled up and cut at the wire bent portion.
    Type: Application
    Filed: February 14, 2008
    Publication date: August 21, 2008
    Inventors: Tatsunari Mii, Toshihiko Toyama, Hiroaki Yoshino
  • Publication number: 20070187467
    Abstract: A method for forming stub bumps in, for instance, semiconductor device fabrication, including a bonded ball formation step for bonding a ball formed at a tip end of a wire passing through a capillary to a pad to form a bonded ball on the pad; a scratching step for, next, scratching a portion of the wire above the bonded ball with an interior edge of the capillary by moving the capillary; a bending step for, next, bending the scratched portion of the wire by moving the capillary; and a cutting step for, thereafter, cutting the wire from the scratched portion by closing a damper during an ascending motion of the capillary.
    Type: Application
    Filed: February 14, 2007
    Publication date: August 16, 2007
    Inventors: Toshihiko Toyama, Tatsunari Mii
  • Publication number: 20070108256
    Abstract: A wire bonding method including the steps of: descending a capillary 5 from above an external lead 1 to press a wire 10 to such an extent that the wire is not completely connected to the external lead 1, thus forming a thin part 16 in the wire; next ascending the capillary 5 and the thin part 16 to substantially the same height as a first bonding point A, then moving the capillary 5 in a direction away from the first bonding point A, thus making a linear wire portion 18 and then cutting the wire at the thin part 16; then connecting the end 19 (thin part) of the linear wire portion 18 and the wire tip end 20 at the lower end of the capillary 5 are connected to the external lead 1; and then separating the wire tip end 20 from the external lead 1.
    Type: Application
    Filed: November 14, 2006
    Publication date: May 17, 2007
    Inventors: Tatsunari Mii, Toshihiko Toyama, Hiroaki Yoshino
  • Publication number: 20060186177
    Abstract: A wire bonding method for bonding a ball 11 which is formed at a tip end of a bonding wire to a pad 2 that is a first bond point to form a first bonding part 12 and bonding the wire 10 to an interconnect wiring 4 that is a second bond point to form a second bonding part, thus connecting the pad 2 and the interconnect wiring with the wire, wherein after the ball is bonded to the first bond point and a capillary 6 is ascended, examination is performed to find any bonding failure of the first bonding part; and when the bonding failure at the first bond point is found, then the capillary is caused to descend to execute bonding to bond the first bonding part to the first bond point.
    Type: Application
    Filed: February 24, 2006
    Publication date: August 24, 2006
    Inventors: Tatsunari Mii, Toshihiko Toyama
  • Publication number: 20060175383
    Abstract: A wire bonding method with the process of performing a first bonding to a pad of a die that is a first bond point, and the process of performing a second bonding to an interconnect wiring (or a lead) that is a second bond point, thus connecting the pad and the interconnect wiring with a wire. A bump is first formed on a pad, and, in a wire cutting step performed during the step of forming the bump, the wire protruding from the tip end of a capillary is bent in the lateral direction to form a bent part, and then the bent part is bonded to the bump, thus completing the first bonding process; after which the wire is bonded to the interconnect wiring, thus completing the second bonding process.
    Type: Application
    Filed: February 3, 2006
    Publication date: August 10, 2006
    Inventors: Tatsunari Mii, Toshihiko Toyama, Shinsuke Tei
  • Patent number: 6491202
    Abstract: A wire bonding apparatus equipped with a chip heating assembly which is installed above a heater block that contains heaters so as to heat the chip portion of a device such as a semiconductor device, and a cooling pipe which is installed in the heater block so as to cool the heater block. The temperature of the bonding surface of the device is maintained by the chip heating assembly at a temperature that allows bonding to be executed while the heater block is cooled by cooling water or a cooling air draft that flows through the cooling pipe so that the temperature of the heater block is maintained at a low temperature that cause no softening of the resin substrate of the device.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: December 10, 2002
    Assignee: Kabushiki Kaisha Shinkawa
    Inventors: Ryuichi Kyomasu, Fumio Miyano, Toshihiko Toyama
  • Patent number: 6467679
    Abstract: A wire bonding apparatus equipped with a chip heating assembly which is installed above a heater block that contains heaters so as to heat the chip portion of a device such as a semiconductor device, and a cooling pipe which is installed in the heater block so as to cool the heater block. The temperature of the bonding surface of the device is maintained by the chip heating assembly at a temperature that allows bonding to be executed while the heater block is cooled by cooling water or a cooling air draft that flows through the cooling pipe so that the temperature of the heater block is maintained at a low temperature that cause no softening of the resin substrate of the device.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: October 22, 2002
    Assignee: Kabushiki Kaisha Shinkawa
    Inventors: Ryuichi Kyomasu, Fumio Miyano, Toshihiko Toyama