Method of manufacturing metal product and mold used therefor

Patent metadata

Field	Value
Publication number	US-12296378-B2
Application number	US-202418674384-A
Country	US
Kind code	B2
Filing date	May 24, 2024
Priority date	May 25, 2023
Publication date	May 13, 2025
Grant date	May 13, 2025

Abstract

Proposed are a method of manufacturing a metal product that uses an anodic aluminum oxide film and a patternable material together, in which a space where the metal product is manufactured is formed by the patternable material and the anodic aluminum oxide film provides structural support to the patternable material; and a mold using an anodic aluminum oxide film used therefor.

First claim

What is claimed is:

1. A mold using an anodic aluminum oxide film, the mold comprising:
a support mold made of the anodic aluminum oxide film and having an opening and exposed wall surfaces exposed toward the opening; and
a patternable material formed on the exposed wall surfaces of the anodic aluminum oxide film and forming a space having a smaller horizontal area than the opening,
wherein the patternable material is a photosensitive material.

2. The mold of claim 1 , wherein the patternable material is formed at the same height as a height of the support mold, and
the patternable material has a width and is formed along the exposed wall surfaces.

3. The mold of claim 1 , wherein the patternable material covers the exposed wall surfaces of the support mold so that the exposed wall surfaces are not exposed toward the space.

4. The mold of claim 1 , wherein the support mold comprises:
a main body provided around the opening; and
an island provided inside the opening and spaced apart from the main body,
wherein the patternable material covers exposed wall surfaces of the main body exposed toward the opening and exposed wall surfaces of the island exposed toward the opening.

5. The mold of claim 1 , further comprising:
a seed layer provided under the space; and
a substrate provided under the seed layer,
wherein the space serves as a space for plating.

6. A method of manufacturing a metal product, the method comprising:
preparing a support mold made of an anodic aluminum oxide film and having an opening;
forming a patternable material on exposed wall surfaces of the anodic aluminum oxide film exposed toward the opening to form a space having a smaller horizontal area than the opening; and
forming a metal in the space,
wherein the patternable material is a photosensitive material.

7. The method of claim 6 , wherein the forming of the patternable material comprises:
filling the opening with the patternable material; and
removing a part of the patternable material filled in the opening so that the space is formed inside the patternable material while the exposed wall surfaces are covered by the patternable material so as not to be exposed toward the space.

8. The method of claim 6 , further comprising:
after the forming of the metal in the space, removing the support mold and the patternable material.

Assignees

• Point Engineering Co Ltd

Inventors

• Ahn Bum Mo
• Park Seung Ho
• Byun Sung Hyun

Classifications

• B22C3/00 Primary

  Selection of compositions for coating the surfaces of moulds, cores, or patterns · CPC title

• C25D3/00

  Electroplating: Baths therefor · CPC title

• G03F7/0017

  for the production of embossing, cutting or similar devices; for the production of casting means · CPC title

• C25D11/02

  Anodisation · CPC title

• G01R3/00

  Apparatus or processes specially adapted for the manufacture {or maintenance} of measuring instruments {, e.g. of probe tips} · CPC title