Cho; Jang Woo
Patent Applications and Registrations
Patent applications and USPTO patent grants for Cho; Jang Woo.The latest application filed is for "silicon nitride layer etching composition and etching method using the same".
- Cho; Jang Woo - Suwon-si KR
| Patent | Date |
|---|---|
| Silicon nitride layer etching composition Grant 11,149,201 - Kim , et al. October 19, 2 | 2021-10-19 |
| Silicon nitride layer etching composition and etching method using the same Grant 10,982,144 - Kim , et al. April 20, 2 | 2021-04-20 |
| Polysiloxane-based compound, silicon nitride layer etching composition including the same Grant 10,920,142 - Kim , et al. February 16, 2 | 2021-02-16 |
| Silicon Nitride Layer Etching Composition And Etching Method Using The Same App 20200071614 - KIM; Dong Hyun ; et al. | 2020-03-05 |
| Silicon Nitride Layer Etching Composition App 20190390110 - KIM; Dong Hyun ; et al. | 2019-12-26 |
| Polysiloxane-based Compound, Silicon Nitride Layer Etching Composition Including The Same App 20190382659 - KIM; Dong Hyun ; et al. | 2019-12-19 |
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