KEEWOUNG CHOI

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor device and method for fabricating the same
- Patent number 11,201,155
- Issue date Dec 14, 2021
- XIA TAI XIN SEMICONDUCTOR (QING DAO) LTD.
- Sang-Woo Lee
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Etch stop layer for semiconductor structure
- Patent number 11,049,766
- Issue date Jun 29, 2021
- XIA TAI XIN SEMICONDUCTOR (QING DAO) LTD.
- Sang-Woo Lee
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for fabricating semiconductor device
- Patent number 11,037,931
- Issue date Jun 15, 2021
- XIA TAI XIN SEMICONDUCTOR (QING DAO) LTD.
- Keewoung Choi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode for ion source comprising a tapered sidewall
- Patent number 10,923,311
- Issue date Feb 16, 2021
- XIA TAI XIN SEMICONDUCTOR (QING DAO) LTD.
- Keewoung Choi
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
ETCH STOP LAYER FOR SEMICONDUCTOR STRUCTURE
- Publication number 20200219764
- Publication date Jul 9, 2020
- XIA TAI XIN SEMICONDUCTOR (QING DAO) LTD.
- SANG-WOO LEE
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME
- Publication number 20200219881
- Publication date Jul 9, 2020
- XIA TAI XIN SEMICONDUCTOR (QING DAO) LTD.
- SANG-WOO LEE
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR FABRICATING SEMICONDUCTOR DEVICE
- Publication number 20200219887
- Publication date Jul 9, 2020
- XIA TAI XIN SEMICONDUCTOR (QING DAO) LTD.
- KEEWOUNG CHOI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR FABRICATING SEMICONDUCTOR COMPONENT
- Publication number 20200203179
- Publication date Jun 25, 2020
- XIA TAI XIN SEMICONDUCTOR (QING DAO) LTD.
- KEEWOUNG CHOI
- H01 - BASIC ELECTRIC ELEMENTS