公开(公告)号：US20180001388A9

公开(公告)日：2018-01-04

申请号：US15037943

申请日：2015-06-17

申请人： Shoei Chemical Inc.

发明人： Yuji Akimoto ,  Hideki Tanaka ,  Mineto Iwasaki ,  Akiko Matsuo

IPC分类号： B22F9/14 ,  C22C19/00 ,  B22F1/00 ,  H01G4/008 ,  C22C5/06 ,  C22C9/00 ,  B23K1/00 ,  H01F27/28 ,  B22F1/02 ,  B22F9/12 ,  B23K35/02 ,  C22C19/03 ,  B22F9/04 ,  B23K35/30 ,  B23K35/36 ,  H01F41/04 ,  H01G4/30 ,  H01G4/012

CPC分类号： B22F9/14 ,  B22F1/0003 ,  B22F1/0014 ,  B22F1/0074 ,  B22F1/0085 ,  B22F1/02 ,  B22F9/04 ,  B22F9/12 ,  B22F2301/10 ,  B22F2301/15 ,  B22F2301/40 ,  B22F2302/40 ,  B22F2302/45 ,  B22F2303/40 ,  B22F2998/10 ,  B22F2999/00 ,  B23K1/0016 ,  B23K35/025 ,  B23K35/3033 ,  B23K35/3612 ,  B23K35/3613 ,  C22C5/06 ,  C22C9/00 ,  C22C19/002 ,  C22C19/03 ,  H01F27/2804 ,  H01F41/041 ,  H01F2027/2809 ,  H01G4/008 ,  H01G4/0085 ,  H01G4/012 ,  H01G4/30 ,  B22F2202/13 ,  B22F2301/45

摘要： This invention aims at providing a carbon-coated metal powder having few impurities, a narrower particle size distribution, and sintering properties particularly suitable as a conductive powder of a conductive paste for forming internal conductors in a ceramic multilayer electronic component obtained by co-firing multilayered ceramic sheets and internal conductor layers; a conductive paste containing the carbon-coated metal powder; a multilayer electronic component using the conductive paste; and a method for manufacturing the carbon-coated metal powder. The carbon-coated metal powder has specific properties in TMA or ESCA measurements. The carbon-coated metal powder can be obtained by melting and vaporizing a metallic raw material in a reaction vessel, conveying the generated metal vapor into a cooling tube and rapidly cooling the metal vapor by endothermically decomposing a carbon source supplied into the cooling tube, and forming a carbon coating film on metal nuclei surfaces in parallel with generation of the metal nuclei.

公开(公告)号：US20160271700A1

公开(公告)日：2016-09-22

申请号：US15037943

申请日：2015-06-17

申请人： Shoei Chemical Inc.

发明人： Yuji Akimoto ,  Hideki Tanaka ,  Mineto Iwasaki ,  Akiko Matsuo

IPC分类号： B22F9/14 ,  B22F9/04 ,  B22F1/00 ,  B23K35/02 ,  H01F27/28 ,  C22C19/00 ,  H01G4/30 ,  H01G4/008 ,  H01G4/012 ,  B22F1/02 ,  B23K1/00

CPC分类号： B22F9/14 ,  B22F1/0003 ,  B22F1/0014 ,  B22F1/0074 ,  B22F1/0085 ,  B22F1/02 ,  B22F9/04 ,  B22F9/12 ,  B22F2301/10 ,  B22F2301/15 ,  B22F2301/40 ,  B22F2302/40 ,  B22F2302/45 ,  B22F2303/40 ,  B22F2998/10 ,  B22F2999/00 ,  B23K1/0016 ,  B23K35/025 ,  B23K35/3033 ,  B23K35/3612 ,  B23K35/3613 ,  C22C5/06 ,  C22C9/00 ,  C22C19/002 ,  C22C19/03 ,  H01F27/2804 ,  H01F41/041 ,  H01F2027/2809 ,  H01G4/008 ,  H01G4/0085 ,  H01G4/012 ,  H01G4/30 ,  B22F2202/13 ,  B22F2301/45

摘要： This invention aims at providing a carbon-coated metal powder having few impurities, a narrower particle size distribution, and sintering properties particularly suitable as a conductive powder of a conductive paste for forming internal conductors in a ceramic multilayer electronic component obtained by co-firing multilayered ceramic sheets and internal conductor layers; a conductive paste containing the carbon-coated metal powder; a multilayer electronic component using the conductive paste; and a method for manufacturing the carbon-coated metal powder. The carbon-coated metal powder has specific properties in TMA or ESCA measurements. The carbon-coated metal powder can be obtained by melting and vaporizing a metallic raw material in a reaction vessel, conveying the generated metal vapor into a cooling tube and rapidly cooling the metal vapor by endothermically decomposing a carbon source supplied into the cooling tube, and forming a carbon coating film on metal nuclei surfaces in parallel with generation of the metal nuclei.

摘要翻译： 本发明的目的在于提供一种具有较少的杂质，较窄的粒度分布和特别适合作为用于形成内部导体的导电性糊料的导电粉末的碳涂覆的金属粉末，该陶瓷多层电子器件通过共烧多层 陶瓷片和内部导体层; 含有碳涂覆金属粉末的导电浆料; 使用导电浆料的多层电子部件; 以及碳涂覆金属粉末的制造方法。 碳涂覆的金属粉末在TMA或ESCA测量中具有特定的性质。 碳涂覆的金属粉末可以通过在反应容器中熔融和蒸发金属原料来获得，将产生的金属蒸气输送到冷却管中并通过吸热分解供给到冷却管中的碳源来快速冷却金属蒸气， 在金属核表面上与金属核的产生平行地形成碳涂层膜。

公开(公告)号：US11535767B2

公开(公告)日：2022-12-27

申请号：US17417895

申请日：2019-11-28

申请人： SHOEI CHEMICAL INC.

发明人： Kousuke Nishimura ,  Naoto Shindo ,  Hiroshi Mashima ,  Yuji Akimoto

IPC分类号： C09D11/52 ,  B22F1/107 ,  C09D11/033 ,  C09D11/037 ,  C09D11/14 ,  H01B1/22

摘要： The present invention provides a silver paste containing at least a silver powder, a binder resin, and an organic solvent, wherein the silver powder contains a first silver powder having a D50 of 3.50 to 7.50 μm and a second silver powder having a D50 of 0.80 to 2.00 μm, where D50 represents a 50% value of a volume-based cumulative fraction obtained by laser diffraction particle size distribution measurement; a copper content of the whole silver powder is 10 to 5000 ppm by mass; a copper content of the second silver powder is 80 ppm by mass or more; and the first silver powder contains substantially no copper. The present invention provides a silver paste containing a powder in a high concentration and excellent in printability, and provides a silver conductor film that has a high filling factor, a high film density, high electrical conductivity, and excellent migration resistance.

公开(公告)号：US10569333B2

公开(公告)日：2020-02-25

申请号：US15905091

申请日：2018-02-26

申请人： Shoei Chemical Inc.

发明人： Yuji Akimoto ,  Hideki Tanaka ,  Mineto Iwasaki ,  Akiko Matsuo

IPC分类号： B22F9/14 ,  B22F9/12 ,  C22C9/00 ,  C22C5/06 ,  H01G4/12 ,  H01B1/02 ,  H01B1/22 ,  B22F1/00 ,  H01G4/008 ,  B22F1/02 ,  C22C19/03 ,  B22F9/04 ,  B23K1/00 ,  B23K35/02 ,  C22C19/00 ,  H01F27/28 ,  H01F41/04 ,  B23K35/30 ,  B23K35/36 ,  H01G4/012 ,  H01G4/30

摘要： A carbon-coated metal powder having few impurities, a narrower particle size distribution, and sintering properties is particularly suitable as a conductive powder of a conductive paste for forming internal conductors in a ceramic multilayer electronic component obtained by co-firing multilayered ceramic sheets and internal conductor layers; a conductive paste containing the carbon-coated metal powder; a multilayer electronic component using the conductive paste; and a method for manufacturing the carbon-coated metal powder. The carbon-coated metal powder has specific properties in TMA or ESCA measurements. The carbon-coated metal powder can be obtained by melting and vaporizing a metallic raw material in a reaction vessel, conveying the generated metal vapor into a cooling tube and rapidly cooling the metal vapor by endothermically decomposing a carbon source supplied into the cooling tube, and forming a carbon coating film on metal nuclei surfaces in parallel with generation of the metal nuclei.

公开(公告)号：US09943909B2

公开(公告)日：2018-04-17

申请号：US15037943

申请日：2015-06-17

申请人： Shoei Chemical Inc.

发明人： Yuji Akimoto ,  Hideki Tanaka ,  Mineto Iwasaki ,  Akiko Matsuo

IPC分类号： B22F9/14 ,  B22F1/02 ,  B22F9/12 ,  B22F9/04 ,  C22C9/00 ,  C22C5/06 ,  C22C19/00 ,  B22F1/00 ,  H01G4/008 ,  B23K1/00 ,  H01F27/28 ,  B23K35/02 ,  C22C19/03 ,  H01G4/012 ,  B23K35/30 ,  B23K35/36 ,  H01F41/04 ,  H01G4/30

CPC分类号： B22F9/14 ,  B22F1/0003 ,  B22F1/0014 ,  B22F1/0074 ,  B22F1/0085 ,  B22F1/02 ,  B22F9/04 ,  B22F9/12 ,  B22F2301/10 ,  B22F2301/15 ,  B22F2301/40 ,  B22F2302/40 ,  B22F2302/45 ,  B22F2303/40 ,  B22F2998/10 ,  B22F2999/00 ,  B23K1/0016 ,  B23K35/025 ,  B23K35/3033 ,  B23K35/3612 ,  B23K35/3613 ,  C22C5/06 ,  C22C9/00 ,  C22C19/002 ,  C22C19/03 ,  H01F27/2804 ,  H01F41/041 ,  H01F2027/2809 ,  H01G4/008 ,  H01G4/0085 ,  H01G4/012 ,  H01G4/30 ,  B22F2202/13 ,  B22F2301/45

摘要： A carbon-coated metal powder having few impurities, a narrower particle size distribution, and sintering properties is particularly suitable as a conductive powder of a conductive paste for forming internal conductors in a ceramic multilayer electronic component obtained by co-firing multilayered ceramic sheets and internal conductor layers; a conductive paste containing the carbon-coated metal powder; a multilayer electronic component using the conductive paste; and a method for manufacturing the carbon-coated metal powder. The carbon-coated metal powder has specific properties in TMA or ESCA measurements. The carbon-coated metal powder can be obtained by melting and vaporizing a metallic raw material in a reaction vessel, conveying the generated metal vapor into a cooling tube and rapidly cooling the metal vapor by endothermically decomposing a carbon source supplied into the cooling tube, and forming a carbon coating film on metal nuclei surfaces in parallel with generation of the metal nuclei.

公开(公告)号：US20220089894A1

公开(公告)日：2022-03-24

申请号：US17417895

申请日：2019-11-28

申请人： SHOEI CHEMICAL INC.

发明人： Kousuke Nishimura ,  Naoto Shindo ,  Hiroshi Mashima ,  Yuji Akimoto

IPC分类号： C09D11/52 ,  B22F1/107 ,  C09D11/037 ,  C09D11/033 ,  C09D11/14 ,  H01B1/22

摘要： The present invention provides a silver paste containing at least a silver powder, a binder resin, and an organic solvent, wherein the silver powder contains a first silver powder having a D50 of 3.50 to 7.50 μm and a second silver powder having a D50 of 0.80 to 2.00 μm, where D50 represents a 50% value of a volume-based cumulative fraction obtained by laser diffraction particle size distribution measurement; a copper content of the whole silver powder is 10 to 5000 ppm by mass; a copper content of the second silver powder is 80 ppm by mass or more; and the first silver powder contains substantially no copper. The present invention provides a silver paste containing a powder in a high concentration and excellent in printability, and provides a silver conductor film that has a high filling factor, a high film density, high electrical conductivity, and excellent migration resistance.