# US 2014/0193656 A1 · Method of manufacturing fine metal powder and fine metal powder manufactured by using the same

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- Number: US 2014/0193656 A1
- Document ID: US20140193656A1
- Status: Published application
- Kind: A1
- Application number: 13/860,334
- Filed: 2013-04-10
- Published: 2014-07-10
- Earliest claimed: 2010-11-25
- Assignees: Samsung Electro-Mechanics Co., Ltd.
- Inventors: Sung Kwon WI; Ji Hwan SHIN; Jeong Min CHO; Young Woo LEE
- Web page: https://patentgrep.com/patent/US20140193656A1

## CPC

- B22F 9/02: using physical processes
- B22F 1/05: Metallic powder characterised by the size or surface area of the particles
- B22F 1/06: Metallic powder characterised by the shape of the particles (nanosized particles B22F1/054)
- B22F 1/068: Flake-like particles
- Y10T 428/12014: having metal particles
- Y10T 428/12028: Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
- Y10T 428/12056: Entirely inorganic
- Y10T 428/12181: Composite powder [e.g., coated, etc.]
- Y10T 428/2991: Coated
- B22F: WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER (making alloys by powder metallurgy C22C); APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

There are disclosed a method of manufacturing fine metal powder and fine metal powder manufactured by using the same. The method of manufacturing fine metal powder includes forming a pattern having a predetermined size and shape on a base substrate, forming a metal film on the pattern, and separating the metal film from the pattern to obtain individual metal particles having a predetermined size and shape. The fine metal powder manufactured by the method has a uniform shape and a uniform particle size distribution. The fine metal powder is in the form of flakes, having a large ratio of particle diameter to thickness.

## Claims

### Claim at position 1

1-13. (canceled)

### Claim 14

Fine metal powder comprising: metal particles having a predetermined size and shape, and having a particle size distribution in a range of ±20% of a mean particle diameter D50.

### Claim 15 (depends on 14)

The fine metal powder of claim 14, wherein the metal particles have a ratio of particle diameter to thickness (particle diameter/thickness) in a range of 20 to 100.

### Claim 16 (depends on 14)

The fine metal powder of claim 14, wherein the metal particles have a particle diameter in a range of 1 to 10 μm.

### Claim 17 (depends on 14)

The fine metal powder of claim 14, wherein the metal particles have a thickness in a range of 10 to 100 nm.

### Claim 18 (depends on 14)

The fine metal powder of claim 14, wherein the metal particles have a polygonal shape or a round shape.

### Claim 19 (depends on 14)

The fine metal powder of claim 14, wherein the metal particles have a multilayer structure in which a plurality of metal layers are stacked.

### Claim 20 (depends on 14)

The fine metal powder of claim 14, wherein the metal particles have a multilayer structure in which a plurality of metal layers and a plurality of metal oxide layers are stacked.