A manufacturing method of the conductive paste containing carbon covering metallic powder and carbon covering metallic powder, the lamination electronic parts using it, and carbon covering metallic powder

Japanese Patent JP5936091

B2

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.

Yuji Akimoto
Hideki Tanaka
Mineto Iwasaki
Akiko Matsuo

JP2015556323A

June 15, 2016

June 17, 2015

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Shoei Chemical Industry Co., Ltd.

B22F1/00; B22F1/052; B22F1/107; B22F1/142; B22F1/16; B22F9/14; C22C5/06; C22C9/00; C22C19/03; H01B1/00; H01B1/22; H01B5/00; H01B13/00

JP2013091824A	2013-05-16
JP2008308733A	2008-12-25
JPS6320032A	1988-01-27
JP2013091824A	2013-05-16
JP2008308733A	2008-12-25
JPS6320032A	1988-01-27

US20090297709A1	2009-12-03
US20090297709A1	2009-12-03

Masami Sakai
Norio Kagami
Yoshikuni Suda

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