Qiyan Feng

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method for forming high aspect ratio patterning structure
- Patent number 9,991,116
- Issue date Jun 5, 2018
- Shanghai Huali Microelectronics Corporation
- Peng Liu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method for establishing mapping relation in STI etch and controllin...
- Patent number 9,666,472
- Issue date May 30, 2017
- Shanghai Huali Microelectronics Corporation
- Jin Xu
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR FORMING HIGH ASPECT RATIO PATTERNING STRUCTURE
- Publication number 20180144929
- Publication date May 24, 2018
- Peng Liu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR ESTABLISHING MAPPING RELATION IN STI ETCH AND CONTROLLIN...
- Publication number 20170025304
- Publication date Jan 26, 2017
- Jin Xu
- H01 - BASIC ELECTRIC ELEMENTS