公开(公告)号：US20020043323A1

公开(公告)日：2002-04-18

申请号：US09923840

申请日：2001-08-08

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Shinya Watanabe ,  Atsuyoshi Maeda

IPC: C03B029/00

CPC classification number: H01G4/0085 ,  H01B1/22

Abstract: A conductive paste which can form conductive films having superior stability due to prevention of change in viscosity with time, and having high reliability due to reduction of gas generation during a defatting is provided. The conductive paste is composed of a conductive powder having an average particle diameter of about 1.0 or less, an organic vehicle, an anionic macromolecular dispersing agent, and an amine having a boiling point of about 120null C. or more, but about 220null C. or less and constitutes about 0.1% to 5% by weight of 100% by weight of the conductive paste.

Abstract translation: 提供一种能够形成由于防止粘度随时间变化而具有优异稳定性的导电性膜的导电性糊剂，并且具有由于脱脂期间的气体产生减少而具有高可靠性的导电性糊剂。 导电性糊剂由平均粒径为约1.0以下的导电性粉末，有机载体，阴离子型高分子分散剂和沸点为约120℃以上，但为约220℃的胺组成 占所述导电浆料的100重量％的约0.1重量％至5重量％。

公开(公告)号：US20030044610A1

公开(公告)日：2003-03-06

申请号：US10231102

申请日：2002-08-30

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Tadasu Hosokura ,  Atsuyoshi Maeda

IPC: B32B015/04

CPC classification number: H01G4/008 ,  B22F1/0018 ,  B22F9/24 ,  B32B18/00 ,  B82Y30/00 ,  C04B35/4682 ,  C04B35/645 ,  C04B2235/3206 ,  C04B2235/3224 ,  C04B2235/3234 ,  C04B2235/3262 ,  C04B2235/3418 ,  C04B2235/5445 ,  C04B2235/6025 ,  C04B2235/6567 ,  C04B2235/6582 ,  C04B2235/6584 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2237/346 ,  C04B2237/525 ,  C04B2237/704 ,  H01G4/30 ,  H05K1/092 ,  Y10T428/24917 ,  Y10T428/2991 ,  Y10T428/2993

Abstract: Provided is a method for manufacturing a metal powder by providing a reducing solution by dispersing caustic alkali, and hydrazine and/or hydrazine hydrate into a solvent; providing a metal salt solution comprising a salt of electroconductive metal, a rare earth metal salt and a solvent; and mixing the reducing solution with the metal salt solution to form a metal powder by depositing a hydroxide derived from the rare earth metal salt and by reducing the salt of electroconductive metal. With this metal powder manufacturing method, the sintering of the metal powder is restricted at a low temperature, the sintering initiation temperature is shifted to a higher level, and rapid sintering shrinkage is restricted, while ceramic grain growth is not accelerated.

公开(公告)号：US20020096664A1

公开(公告)日：2002-07-25

申请号：US09934230

申请日：2001-08-21

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Shinichi Taira ,  Atsuyoshi Maeda

IPC: H01C001/00

CPC classification number: H01C1/148 ,  H01C7/003 ,  H01C17/283

Abstract: A conductive paste is provided which can prevent the generation of wrinkles on electrode films after drying and which can be used for forming a highly reliable ceramic electronic element having superior appearance. The conductive paste contains a conductive component such as silver or copper and an organic vehicle. The organic vehicle contains an organic binder, a first solvent dissolving the organic binder and a second solvent substantially not dissolving the organic binder, wherein the boiling point of the first solvent is higher than that of the second solvent or is higher than the temperature at the end of distillation thereof by about 20null C. or more, and the content of the second solvent is about 30 to 70 wt % of the organic vehicle.

Abstract translation: 提供了可以防止在干燥后电极膜产生褶皱的导电膏，并可用于形成具有优异外观的高可靠性陶瓷电子元件。 导电浆料含有诸如银或铜的导电组分和有机载体。 有机载体包含有机粘合剂，溶解有机粘合剂的第一溶剂和基本上不溶解有机粘合剂的第二溶剂，其中第一溶剂的沸点高于第二溶剂的沸点或高于第二溶剂的温度 蒸馏结束约20℃以上，第二溶剂的含量为有机载体的约30〜70重量％。

公开(公告)号：US20010015603A1

公开(公告)日：2001-08-23

申请号：US09779270

申请日：2001-02-08

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Takeshi Miki ,  Atsuyoshi Maeda

IPC: H01J001/46

CPC classification number: H01G4/232 ,  C03C3/14 ,  H01B1/16 ,  H01C1/14 ,  H01G4/228 ,  Y10T428/24917 ,  Y10T428/24926

Abstract: A conductive paste containing no Pb and able to suppress heat generation in a sintered ceramic body, and a medium and high voltage ceramic capacitor with thick film electrodes formed thereof, are provided. The conductive paste containing substantially no Pb is composed of an Ag powder, a glass powder having on a % by mole basis, 30

Abstract translation: 提供了不含Pb并且能够抑制烧结陶瓷体中的发热的导电性糊料以及由其形成有厚膜电极的中高压陶瓷电容器。 基本上不含Pb的导电糊料由Ag粉末，以摩尔％计的玻璃粉末30

公开(公告)号：US20030164065A1

公开(公告)日：2003-09-04

申请号：US10378947

申请日：2003-03-05

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Tadasu Hosokura ,  Atsuyoshi Maeda

IPC: B22F009/24

CPC classification number: H01G9/0525 ,  B22F9/24 ,  B22F2998/00 ,  H01B1/02 ,  H01B1/22 ,  Y10T428/12028 ,  Y10T428/12049 ,  B22F1/0018

Abstract: A metal powder is formed by the steps of preparing a reducing agent solution, preparing a mixed metallic salt solution by dissolving a nickel salt and a copper salt in a solvent, and mixing the reducing agent solution and the mixed metallic salt solution so that the copper salt is reduced to precipitate copper particle nuclei and then the nickel salt is reduced to precipitate nickel around the copper particle nuclei. A metal power produced by this production method, a conductive paste containing the metal powder and a monolithic ceramic electronic component in which internal electrodes are formed using the conductive paste are also disclosed.

公开(公告)号：US20030064213A1

公开(公告)日：2003-04-03

申请号：US10252002

申请日：2002-09-23

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Takeshi Miki ,  Atsuyoshi Maeda

IPC: B32B003/00

CPC classification number: H01G4/232 ,  C03C3/14 ,  H01B1/16 ,  H01C1/14 ,  H01G4/228 ,  Y10T428/24917 ,  Y10T428/24926

Abstract: A conductive paste containing no Pb and able to suppress heat generation in a sintered ceramic body, and a medium and high voltage ceramic capacitor with thick film electrodes formed thereof, are provided. The conductive paste containing substantially no Pb is composed of an Ag powder, a glass powder having on a % by mole basis, 30

公开(公告)号：US20020011131A1

公开(公告)日：2002-01-31

申请号：US09863739

申请日：2001-05-23

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Tadasu Hosokura ,  Atsuyoshi Maeda

IPC: B22F009/24

CPC classification number: H01G9/0525 ,  B22F9/24 ,  B22F2998/00 ,  H01B1/02 ,  H01B1/22 ,  Y10T428/12028 ,  Y10T428/12049 ,  B22F1/0018

Abstract: A metal powder is formed by the steps of preparing a reducing agent solution, preparing a mixed metallic salt solution by dissolving a nickel salt and a copper salt in a solvent, and mixing the reducing agent solution and the mixed metallic salt solution so that the copper salt is reduced to precipitate copper particle nuclei and then the nickel salt is reduced to precipitate nickel around the copper particle nuclei. A metal power produced by this production method, a conductive paste containing the metal powder and a monolithic ceramic electronic component in which internal electrodes are formed using the conductive paste are also disclosed.

Abstract translation: 通过以下步骤形成金属粉末：制备还原剂溶液，通过将镍盐和铜盐溶解在溶剂中制备混合金属盐溶液，并将还原剂溶液和混合金属盐溶液混合，使铜 盐减少以沉淀铜颗粒核，然后还原镍盐以在铜颗粒核周围沉淀镍。 还公开了通过该制造方法制造的金属功率，含有金属粉末的导电性糊料和使用导电性糊料形成内部电极的整体式陶瓷电子部件。

公开(公告)号：US20010055704A1

公开(公告)日：2001-12-27

申请号：US09841199

申请日：2001-04-24

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Tadasu Hosokura ,  Atsuyoshi Maeda

IPC: B32B018/00

CPC classification number: H01G4/008 ,  B22F1/0018 ,  B22F9/24 ,  B32B18/00 ,  B82Y30/00 ,  C04B35/4682 ,  C04B35/645 ,  C04B2235/3206 ,  C04B2235/3224 ,  C04B2235/3234 ,  C04B2235/3262 ,  C04B2235/3418 ,  C04B2235/5445 ,  C04B2235/6025 ,  C04B2235/6567 ,  C04B2235/6582 ,  C04B2235/6584 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2237/346 ,  C04B2237/525 ,  C04B2237/704 ,  H01G4/30 ,  H05K1/092 ,  Y10T428/24917 ,  Y10T428/2991 ,  Y10T428/2993

Abstract: Provided is a method for manufacturing a metal powder by providing a reducing solution by dispersing caustic alkali, and hydrazine and/or hydrazine hydrate into a solvent; providing a metal salt solution comprising a salt of electroconductive metal, a rare earth metal salt and a solvent; and mixing the reducing solution with the metal salt solution to form a metal powder by depositing a hydroxide derived from the rare earth metal salt and by reducing the salt of electroconductive metal. With this metal powder manufacturing method, the sintering of the metal powder is restricted at a low temperature, the sintering initiation temperature is shifted to a higher level, and rapid sintering shrinkage is restricted, while ceramic grain growth is not accelerated.

Abstract translation: 本发明提供一种通过将苛性碱分散还原溶液和肼和/或水合肼加入到溶剂中来制造金属粉末的方法; 提供包含导电金属盐，稀土金属盐和溶剂的金属盐溶液; 并将还原溶液与金属盐溶液混合，通过沉积衍生自稀土金属盐的氢氧化物和还原导电金属盐形成金属粉末。 利用该金属粉末的制造方法，金属粉末的烧结被限制在低温下，烧结开始温度转移到更高的水平，并且在不促进陶瓷晶粒生长的同时限制了快速烧结收缩。