Title:
金属超微粒子分散液の製造方法
Document Type and Number:
Japanese Patent JP4871443
Kind Code:
B2
Abstract:
The present invention relates to a liquid dispersion of metal ultrafine particles, which can maintain a desired flow ability even at a high concentration, which is free of any aggregation between fine particles and which can be concentrated. This liquid dispersion is used in, for instance, multilayer distributing wires of, for instance, IC substrates and internal distributing wires of semiconductor devices. If using, as a dispersant, at least one member selected from the group consisting of alkylamines, which are primary amines and whose main chain contains 4 to 20 carbon atoms, carboxylic acid amides and amino-carboxylic acid salts, metal ultrafine particles having a particle size of not more than 100 nm are individually or separately dispersed in the resulting liquid dispersion. The liquid dispersion of metal ultrafine particles in which the metal ultrafine particles having a desired particle size are individually or separately dispersed can be prepared by bringing metal vapor into contact with organic solvent vapor, adding a dispersant to a liquid collected after cooling the vapor mixture, subsequently optionally subjecting the liquid to a solvent-substitution step; or by bringing metal vapor into contact with mixed vapor of an organic solvent and a dispersant, cooling the vapor mixture to collect a liquid product and then, if desired, subjecting the liquid to a solvent-substitution step.
Inventors:
Toshihiro Suzuki
Masaaki Oda
Masaaki Oda
Application Number:
JP2000313591A
Publication Date:
February 08, 2012
Filing Date:
October 13, 2000
Export Citation:
Assignee:
ULVAC, Inc.
International Classes:
B22F9/00; B01J13/00; B22F1/054; B22F9/12; B22F9/24; B22F9/30; C09D17/00; C09K23/16; C09K23/22; C09K23/28; H01B1/22; H01B13/00
Domestic Patent References:
| JP3034211A | ||||
| JP61069905A |
Foreign References:
| WO1997024224A1 |
Attorney, Agent or Firm:
Yoshihiro Shimizu
Shinichi Abe
Yuji Tsujida
Shinichi Abe
Yuji Tsujida