Mask, preparation method and operation method thereof
US-11746406-B2 · Sep 5, 2023 · US
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Yang Chengfa patents
Yang Chengfa is listed as an inventor on 4 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Yang Chengfa |
| Total patents | 4 |
| First publication | Dec 5, 2019 |
| Latest publication | Sep 5, 2023 |
Notable patents
Publications ranked by popularity score, then publication date.
Method and apparatus for calculating equivalent mechanical parameters of film layer etching region
US-11250185-B2 · Feb 15, 2022 · US
Mask, preparation method and operation method thereof
US-2021172047-A1 · Jun 10, 2021 · US
Method and apparatus for calculating equivalent mechanical parameters of film layer etching region
US-2019370423-A1 · Dec 5, 2019 · US
Recent patents
Latest publications not already listed above.
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Boe Technology Group Co Ltd | 4 |
| Ordos Yuansheng Optoelectronics Co Ltd | 4 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| H10P72/57 | 2 |
| B05C21/005 | 2 |
| B05C17/06 | 2 |
| C23C14/24 | 2 |
| C23C14/042 | 2 |