职责描述： 1. 3D NAND ETCH Process develop 2. Process window enlarge 3. New tool evaluation 4. Cycle time reduction and cost down 5. Maintain process and make it stable 任职要求： 1. Master at least and more than 3 years’ experience of ETCH process engineer or process develop engineer, 3D NAND ETCH process related experience preferred 2. At least good at one type of plasma etch process such as poly etch, oxide etch, metal etch, Bev etch, dry strip, etc