Manufacturing method of metal component and manufacturing method of electronic apparatus
US10240239B2 · kind B2 · utility
0Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 2017 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | May 22, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/095
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This manufacturing method of a metal component enables precision processing of a corner portion, and the radius of curvature of a cog tip of a gear and the like can be made smaller than before. The manufacturing method of a metal component includes: (a) forming a mask film having, in plan view, a first side, a second side, and an extension portion that extends from a region between the first side and the second side on a metal film; and (b) forming a corner portion having, in plan view, a third side and a fourth side by etching the metal film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.