Patents by Inventor Katsutoki Shirai
Katsutoki Shirai 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).
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Publication number: 20240063097Abstract: A semiconductor device includes: a first lead having a die pad; a second lead arranged to be spaced apart from the first lead; a first semiconductor element mounted on the die pad; and a plurality of wires electrically connected to the first semiconductor element and the second lead, wherein the die pad and the second lead are arranged side by side in a first direction perpendicular to a thickness direction, and wherein all of the plurality of wires are inclined with respect to the first direction when viewed in the thickness direction.Type: ApplicationFiled: July 27, 2023Publication date: February 22, 2024Inventor: Katsutoki SHIRAI
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Publication number: 20230116738Abstract: A semiconductor device according to one aspect includes a pad portion, an insulating layer that supports the pad portion, a first wiring layer that is formed in a layer below the pad portion and extends in a first direction below the pad portion, and a conductive member that is joined to a front surface of the pad portion and extends in a direction forming an angle of -30° to 30° with respect to the first direction. A semiconductor device according to another aspect includes a pad portion, an insulating layer that supports the pad portion, a first wiring layer that is formed in a layer below the pad portion and extends in a first direction below the pad portion, and a conductive member that is joined to a front surface of the pad portion and has a joint portion that is long in one direction in plan view and an angle of a long direction of the joint portion with respect to the first direction is -30° to 30°.Type: ApplicationFiled: October 28, 2020Publication date: April 13, 2023Inventor: Katsutoki SHIRAI
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Publication number: 20220301985Abstract: A semiconductor device, includes: a semiconductor element having element main surface and element back surface spaced apart from each other in thickness direction and including a plurality of main surface electrodes arranged on the element main surface; a die pad having a die pad main surface where the semiconductor element is mounted; a plurality of leads including at least one first lead arranged on one side in first direction orthogonal to the thickness direction with respect to the die pad, and arranged around the die pad when viewed in the thickness direction; a plurality of connecting members including a first connecting member bonded to the at least one first lead, and configured to electrically connect the main surface electrodes and the leads; and a resin member configured to seal the semiconductor element, a part of the die pad, parts of the leads, and the connecting membersType: ApplicationFiled: March 17, 2022Publication date: September 22, 2022Inventor: Katsutoki SHIRAI
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Publication number: 20220301991Abstract: A semiconductor device includes: a semiconductor element having an element main surface and an element back surface spaced apart from each other in a thickness direction and including a plurality of main surface electrodes arranged on the element main surface; a die pad on which the semiconductor element is mounted; a plurality of leads including at least one first lead and at least one second lead and arranged around the die pad when viewed in the thickness direction; a plurality of connecting members including a first connecting member and a second connecting member and configured to electrically connect the plurality of main surface electrodes and the plurality of leads; and a resin member configured to seal the semiconductor element, a part of the die pad, parts of the plurality of leads, and the plurality of connecting members and having a rectangular shape when viewed in the thickness direction.Type: ApplicationFiled: March 17, 2022Publication date: September 22, 2022Inventor: Katsutoki SHIRAI
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Publication number: 20220301990Abstract: A semiconductor device includes: a semiconductor element having an element main surface and an element back surface spaced apart from each other in a thickness direction, and including a plurality of main surface electrodes arranged on the element main surface; a die pad on which the semiconductor element is mounted; a plurality of leads including at least one first lead arranged on one side in a first direction orthogonal to the thickness direction with respect to the die pad, and arranged around the die pad when viewed in the thickness direction; a plurality of connecting members including a first connecting member, and configured to electrically connect the plurality of main surface electrodes and the plurality of leads; and a resin member configured to seal the semiconductor element, a part of the die pad, parts of the plurality of leads, and the plurality of connecting members.Type: ApplicationFiled: March 16, 2022Publication date: September 22, 2022Inventor: Katsutoki SHIRAI
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Patent number: 11404356Abstract: An electronic device includes an electronic component provided with a first electrode pad, a die pad including an obverse surface facing in a first direction with the electronic component mounted on the obverse surface, a first lead, a second lead, and a first connection member electrically connecting the first electrode pad and the first lead to each other. The first lead and the second lead are disposed, as viewed in the first direction, on a same side of the die pad in a second direction perpendicular to the first direction. The first lead includes a first pad portion and a first extended portion. The first connection member is bonded to the first pad portion. The first extended portion extends from the first pad portion up to a position located between the die pad and the second lead as viewed in the first direction.Type: GrantFiled: March 23, 2020Date of Patent: August 2, 2022Assignee: ROHM CO., LTD.Inventors: Katsutoki Shirai, Yoshio Higashida
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Publication number: 20220238420Abstract: An electronic device includes an electronic component provided with a first electrode pad, a die pad including an obverse surface facing in a first direction with the electronic component mounted on the obverse surface, a first lead, a second lead, and a first connection member electrically connecting the first electrode pad and the first lead to each other. The first lead and the second lead are disposed, as viewed in the first direction, on a same side of the die pad in a second direction perpendicular to the first direction. The first lead includes a first pad portion and a first extended portion. The first connection member is bonded to the first pad portion. The first extended portion extends from the first pad portion up to a position located between the die pad and the second lead as viewed in the first direction.Type: ApplicationFiled: April 11, 2022Publication date: July 28, 2022Inventors: Katsutoki SHIRAI, Yoshio HIGASHIDA
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Patent number: 11195783Abstract: A semiconductor device includes a semiconductor element made up of a semiconductor substrate, an element electrode formed on the substrate, and a wiring layer electrically connected to the element electrode. The semiconductor device further includes a lead frame supporting the semiconductor element, a first conductive member electrically connecting the semiconductor element and the lead frame, a second conductive member overlapping with the semiconductor element as seen in plan view, and a sealing resin covering the semiconductor element, a part of the lead frame, and the first and second conductive member. The wiring layer includes a first pad portion and a second pad portion. The second conductive member has a first connecting portion bonded to the first pad portion and a second connecting portion bonded to the second pad portion.Type: GrantFiled: June 3, 2019Date of Patent: December 7, 2021Assignee: ROHM CO., LTD.Inventors: Yoshio Higashida, Katsutoki Shirai
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Publication number: 20200312750Abstract: An electronic device includes an electronic component provided with a first electrode pad, a die pad including an obverse surface facing in a first direction with the electronic component mounted on the obverse surface, a first lead, a second lead, and a first connection member electrically connecting the first electrode pad and the first lead to each other. The first lead and the second lead are disposed, as viewed in the first direction, on a same side of the die pad in a second direction perpendicular to the first direction. The first lead includes a first pad portion and a first extended portion. The first connection member is bonded to the first pad portion. The first extended portion extends from the first pad portion up to a position located between the die pad and the second lead as viewed in the first direction.Type: ApplicationFiled: March 23, 2020Publication date: October 1, 2020Inventors: Katsutoki SHIRAI, Yoshio HIGASHIDA
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Publication number: 20190378784Abstract: A semiconductor device includes a semiconductor element made up of a semiconductor substrate, an element electrode formed on the substrate, and a wiring layer electrically connected to the element electrode. The semiconductor device further includes a lead frame supporting the semiconductor element, a first conductive member electrically connecting the semiconductor element and the lead frame, a second conductive member overlapping with the semiconductor element as seen in plan view, and a sealing resin covering the semiconductor element, a part of the lead frame, and the first and second conductive member. The wiring layer includes a first pad portion and a second pad portion. The second conductive member has a first connecting portion bonded to the first pad portion and a second connecting portion bonded to the second pad portion.Type: ApplicationFiled: June 3, 2019Publication date: December 12, 2019Inventors: Yoshio Higashida, Katsutoki Shirai