Haochen Sun Email & Phone Number

Fremont, Ca, Us

Milpitas, California, United States

*PMR/HAMR HDD reader/writer thin-film magnetic recording head device development/fabrication/production Photolithography process development: *Delivered several key layer process for PMR/HAMR HDD writer magnetic recording head design by ASML (248nm) Scanner and i-line Nikon Steppers *Improved key layer within-wafer and wafer-to-wafer CD sigma and lower the overlay residual *Developed and ramped up 8-in wafer production line from start, migrated key writer layers from 6-in production to 8-in line *Served as overlay tool owner for 8-in wafer line, worked with tool vendor for tool qualification and process optimization *Hands-on experience with ASML (248nm) Scanner, i-line Nikon stepper (365nm), AMAT CD-SEM(Verity/Nano/5i/6i), G-line (Micralign, SUSS), Overlay tool (Accent, Inspectrology), Tencor (KLA) *Develop and work on manufacturable process in collaboration with Design, Integration, Thin Film (CVD/IBD), Dry Etch (RIE/IBE), CMP, and Wet Process (electroplating, wet etch) group *Experience working in a high-volume 6” and 8” wafer production line *Extensive experience with SPC (CP/CPK control), DOE, FMEA, and process evaluationsSkills: *Photolithography: ASML PAS 5500, Nikon SF155/i14/i12, Micralign, SUSS Mask aligner, Screen Coater/Developer/inline CTDV track *Metrology: Accent/Inspectrology Overlay, AMAT Verity SEM Nano/5i/6i, FIB, XRD, XRF, AFM, Tencor, Optical Microscopes *Software: SOLID E Simulation, JMP, MATLAB, LabView, VB, C, dw2000, Python

Merced, California, United States

• Investigated the photophysics of InP/ZnSe/ZnS quantum dots and their applications in collaboration with Nanosys, Inc. (Milpitas, CA)• Operated and maintained complex laser systems to measure time-resolved properties of nanocrystals• Published 4 papers

• Worked on 5 research projects about the synthesis, shell growth, and surface chemistry of 2-dimensional semiconductor nanocrystal, resulted in 5 research papers (4 first-authored, 1 second-authored)• Taught General Chemistry Lab course for a total of 6 class sections, 120 freshmen students. Received 2016-2017's Teaching Excellence Award• Established efficient chemical precursors and routes for 2D nanocrystal synthesis, shell growth, and surface ligand exchange• Established an optimized protocol for the ICP-OES analysis of semiconductor nanocrystals• Managing the department's FT-IR instrument and software

• Participated in 2 research projects, and co-authored 2 research papers• Developed the syntheses of cobalt oxide nanocrystals of different morphologies, deposited gold nanoparticles on them, and evaluated their catalytic performances

• Participated in 1 research project• Helped to develop a rhodium-catalyzed organometallic ring-closing reaction

Doctor Of Philosophy - Phd, Chemistry

Activities and Societies: American Chemical Society; Presenter at the Spring 2019 ACS National Meeting in Orlando, Florida; Presenter.

Bachelor Of Science - Bs, Chemistry

Activities and Societies: Visiting student and undergraduate researcher at University of Wisconsin-Madison; Language volunteer for the 2nd.