Woei Ji Song

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Contact etch stop film
- Patent number 7,939,915
- Issue date May 10, 2011
- Semiconductor Manufacturing International (Shanghai) Corporation
- Hok Min Ho
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Contact etch stop film
- Patent number 7,629,673
- Issue date Dec 8, 2009
- Semiconductor Manufacturing International (Shanghai) Corporation
- Hok Min Ho
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
NOVEL CONTACT ETCH STOP FILM
- Publication number 20100029090
- Publication date Feb 4, 2010
- SHENZHEN BAK BATTERY CO., LTD.
- Hok Min Ho
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
NOVEL CONTACT ETCH STOP FILM
- Publication number 20080128869
- Publication date Jun 5, 2008
- Semiconductor Manufacturing International (Shanghai) Corporation
- Hok Min Ho
- H01 - BASIC ELECTRIC ELEMENTS