Division mask
US10901313B2 · kind B2 · utility
2Cited by
5References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 11, 2017 |
| Grant date | Jan 26, 2021 |
| Priority date | — |
| Expiry date | Sep 15, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H29/142
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A division mask includes a main body portion including an opening pattern; and a clamping portion disposed at opposite ends of the main body portion. The clamping portion including at least three branch portions. The branch portions have a smaller width in a direction away from a central line of the division mask.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.