公开(公告)号：US20230311451A1

公开(公告)日：2023-10-05

申请号：US18043218

申请日：2021-06-25

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Osamu YOSHIMOTO ,  Ryuichi ARAKAWA ,  Tomoo TANAKA

IPC: B32B9/04 ,  B32B7/12 ,  B32B15/20 ,  B32B15/02 ,  B32B9/00 ,  C04B37/02 ,  B23K1/00 ,  B23K35/02 ,  B23K35/26

CPC classification number: B32B9/041 ,  B32B7/12 ,  B32B15/20 ,  B32B15/02 ,  B32B9/005 ,  C04B37/023 ,  B23K1/0016 ,  B23K35/0233 ,  B23K35/26 ,  H01L21/6833

Abstract: A joining layer of a joined body includes a joining material which contains, as a main component, a metal having a surface tension of 1000 mN/m or less at its melting point, and a metal layer which has a plurality of pores formed therein and in which at least some of the pores are impregnated with the joining material.

公开(公告)号：US20220347781A1

公开(公告)日：2022-11-03

申请号：US17624001

申请日：2020-07-09

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Yosuke YATSUYA ,  Ryuichi ARAKAWA ,  Toshiyuki SAKURAI ,  Tsuneyuki ITO ,  Hiroki TAKEUCHI ,  Tomoo TANAKA ,  Yusuke KATSU

IPC: B23K3/08

Abstract: A wavelength conversion member for soldering includes a ceramic fluorescent body for converting a wavelength of light entering from an incident surface of the ceramic fluorescent body, a reflection layer disposed on a back surface of the ceramic fluorescent body on a side opposite the incident surface and partially or entirely covering the back surface, and a junction layer composed of one or more films and covering at least the reflection layer selected from the back surface of the ceramic fluorescent body and the reflection layer. The junction layer has a projecting portion which projects, in relation to an outer circumferential portion of the junction layer, in a center portion of a surface on a side opposite a surface on a side where the junction layer covers at least the reflection layer selected from the back surface and the reflection layer.

公开(公告)号：US20220357027A1

公开(公告)日：2022-11-10

申请号：US17624081

申请日：2020-07-09

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Yosuke YATSUYA ,  Ryuichi ARAKAWA ,  Toshiyuki SAKURAI ,  Tomoo TANAKA

IPC: F21V29/503 ,  F21V9/32

Abstract: A wavelength conversion member includes a ceramic fluorescent body for converting a wavelength of incident light, a heat radiation member for radiating heat of the ceramic fluorescent body to an outside atmosphere, and a solder layer for joining together the ceramic fluorescent body and the heat radiation member. The solder layer includes a joining portion disposed between the ceramic fluorescent body and the heat radiation member and a protruding portion protruding outward from an outer circumferential portion of the ceramic fluorescent body. The protruding portion is spaced apart from a side surface formed on the outer circumferential portion of the ceramic fluorescent body. In the solder layer, the maximum value of thickness of the protruding portion is greater than the average value of thickness of the joining portion.

公开(公告)号：US20230226630A1

公开(公告)日：2023-07-20

申请号：US17922539

申请日：2021-06-11

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Ryuichi ARAKAWA ,  Tomoo TANAKA ,  Osamu YOSHIMOTO

IPC: B23K1/19

CPC classification number: B23K1/19 ,  B23K2103/166

Abstract: A joined body includes a first member, a second member, and a joining portion disposed therebetween and joining the first member and the second member. The joining portion includes a first joining layer on a side toward the first member and formed of a first joining material, a second joining layer on a side toward the second member and formed of a second joining material, and a metal layer therebetween and having a plurality of holes communicating with one another. The metal layer includes a first-joining-material-impregnated layer on a side toward the first joining layer and in which the plurality of holes are impregnated with the first joining material, a second-joining-material-impregnated layer on a side toward the second joining layer and in which the plurality of holes are impregnated with the second joining material, and an unfilled hole layer therebetween and in which the plurality of holes are void.

公开(公告)号：US20230303457A1

公开(公告)日：2023-09-28

申请号：US18041284

申请日：2021-06-25

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Osamu YOSHIMOTO ,  Ryuichi ARAKAWA ,  Tomoo TANAKA

IPC: C04B37/02 ,  H01L21/683

CPC classification number: C04B37/026 ,  H01L21/6831 ,  C04B2237/597 ,  C04B2237/62

Abstract: A joined body includes a first member and a second member which are joined together via a joining portion including a metal layer having a plurality of pores communicating with each other. The first member and the metal layer have respective through holes formed in the first member and the metal layer, respectively, and communicating with each other. A tubular member is disposed between an inner side portion of the through hole formed in the metal layer and an interior portion of the metal layer.