Ah Hyeon LIM

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Daejeon, KR

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Patents Grantslast 30 patents

Information Patent Grant
Etching composition effective to selectively wet etch a silicon nit...
- Patent number 10,995,268
- Issue date May 4, 2021
- LTCAM CO., LTD.
- Sok Ho Lee
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Etchant composition with high selectivity to silicon nitride
- Patent number 10,689,572
- Issue date Jun 23, 2020
- LTCAM CO., LTD.
- Sok Ho Lee
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
COMPOSITION FOR WET ETCHING TO SILICON NITRIDE
- Publication number 20190367811
- Publication date Dec 5, 2019
- LTCAM CO., LTD.
- SOK HO LEE
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
ETCHANT COMPOSITION WITH HIGH SELECTIVITY TO SILICON NITRIDE
- Publication number 20190249082
- Publication date Aug 15, 2019
- LTCAM CO., LTD.
- Sok Ho LEE
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...