Chao Liu

1. Drove algorithm development activities, from prototyping to productization, to enable in-situ metrology capabilities in Etch process tool 2. Extracted temporal insights of complex semiconductor process behaviors through optical computations, and expedited process learnings from days to hours. 3. Enabled large-scale parallel computation to resolve hyperspectral signals at both on-premises and cloud-based high-performance computing (HPC) infrastructures.

1. Managed a data science team in Singapore and supervised its technical deliverables that require mathematical, statistical and machine learning/deep learning capabilities 2. Drove several joint technical collaborations with local institutions, delivering technologies to Lam that enabled key features on multiple products

1. Established active learning loop for semiconductor process development and optimization in statistical framework 2. Developed and implemented DNN-based solution for process development through mathematical optimization in high dimensional space 3. Developed image segmentation solutions in CNN framework and its variants (U-Net, DenseNet, Inception, and ResNet) to enable high-precision metrology in Lam’s supervised imaging product 4. Deployed customized computer vision algorithm to enable automated metrology extraction from images of various process targets.

• Developed and deployed machine learning models to accelerate time to solution • Developed algorithm to improve measurability of features with extremely low sensitivity based on optical spectra

• Implemented corporate strategy to oversee and lead application development activities at Samsung and Hynix accounts • Facilitated mid-level customer engagement and relayed customer feedback to cross-functional teams at HQ, assisting in strategic decisions in hardware and software product development roadmaps

• Lead OCD technical support to strategic accounts in Singapore and China • Drive solution development for issues happened during technology transfer from US to Asia

• Drive head-to-head evaluation to win new business/defend existing business • Develop MATLAB utilities to automate data-analysis processes and investigate research ideas

• Develop recipes for the Ellipsometry Measurements (OCD and thin film) of various state-of-the-art logic and memory device such as VNAND, DRAM and FINFET. • Provide both on-site and remote support to major semiconductor manufacturers such as Samsung, Micron and TSMC. • Provided training to customers and new hires

Teaching Assistant (Fundamentals of Semiconductor Device Physics) • Reinforce lecture material and direct students to additional resources • Counsel and evaluate students

• Fabricated high performance CNT-based field effect transistor using dielectrophoresis • Assisted in aligning carbon nanotubes using fluidic alignment technique.

Performed electrical failure analysis on DRAM device (T26A, MSA) to trace the cause of abnormal resistance between two adjacent memory pins. Single board test and infrared-aided imaging were employed as the main testing techniques.