Guang Yang Email & Phone Number

San Jose, Ca, Us

Menlo Park, Ca, Us

According to electrical & mechanical single-line diagrams, developed Reliability Availability Maintainability (RAM) Modeling, and evaluated Meta’s data center electrical and mechanical designs against availability and reliability targets.

圣何塞, 加利福尼亚, Us

• Product/software development: Developed a defect detection &classification function for a 3D printer using computer vision and deep learning techniques with PyTorch, YOLO, OpenCV, and camera calibration. • AI application development: Designed and fine-tuned an AI chatbot prototype to automate solution processes, reducing the time to answer customer inquiries from 2 weeks to seconds. • Solution service: Conducted feasibility testing of laser welding, de-gluing, cleaning, marking, and cutting processes using different laser equipment for consumer electronics.

Santa Clara, Ca, Us

• Reliability & quality & product owner of 3 NPI capital equipment ensured operational & technical health through completing:(I) Planning Phase: Performed Marketing Req Spec- Functional Req- System Req - Hardware Req mapping, design FMEA, reliability block diagram, and fault tree.(II) Design Phase: Characterized and optimized designs through structured DOE, Monte Carlo, data mining of wafer processing logs for reliability growth, robustness & margin test, and allocation.(III) Testing and High-Volume Manufacturing Phases: (1) Alpha Supplier Verification & Audit: Managed Product Quality Performance, including process flow, PFMEA, FAI, Gauge R&R, SPC, Cpk, DfM reviews, control plans, etc. with suppliers. Conducted DVT and reliability testing, such as HALT, stress screening/HASS, ingress/ shock/ drop/ vibration/ ESD/ environmental testing, and thermal/ mechanical/ electrical functionality tests. (2) Beta Customer Validation and Manufacturing: reliability growth, MTTR, MTBF, availability, maintainability, safety, process Cpk, chamber matching (R&R), productivity, and field NC resolution.• Change management owner for ~10 Top-X topics (faceplate, RF Gen & Match, heater jacket, power supply, heater), customer field issues(~20 Failure Analyses per Top-X), and heater jacket safety escalation programs. Developed tooling and fixturing or modified mechanical drawing specs. (I) V&V Testing and Failure Analysis (FA) on electronics and electrical parts: Developed FA plans, functional tests, and design verification test plans, such as power cycling, thermal cycling tests, HALT, HASS, ESD, etc. (II) Product NC Reduction Team Lead: Conducted cost analysis, profitability, and SWOT for each CIP. Defined NC reduction roadmaps and work breakdowns to solve each failure mode. (III) Supplier Quality Audit: Performed PQP audits at 5 suppliers' factories and closed CAPAs.

Rapid City, Sd, Us

• Developed software and conducted thermal, structural, and hydraulic analyses utilizing C++ or Python. Designed and prototyped the heater-packer thermal system, and modeled burst pressure of corroded pipelines, natural gas thermodynamics, cavern structural integrity and casing strain after salt creep, and natural convection of the heated drilling fluid using FEA and CFD.

Dallas, Tx, Us

• Monitored the molten pool stability by machine vision, plasma plume, and back reflection of laser, automatically updated the welding laser power by closed-loop control and image processing, defined test specifications, mitigated defects during laser brazing, and updated the joining baseline. Developed processing with various laser equipment suppliers • Simulated the multiphysics (boiling, evaporation, heat transfer, fluid dynamics, and solidification) and the multiphase interactions (vapor/ liquid/ solid+ VOF) in laser welding, droplet spreading and solidification, formation and movement of gas bubbles, and shielding gas flow by using ANSYS FLUENT, C++ user-defined functions, and MatLab.

Dallas, Tx, Us

• BIW & Additive Manufacturing: Developed GM's dual-beam laser patent to mitigate roof drip modeling, grinding, and polishing processes for the BIW Mfg, resulting in smooth Class-A weld surfaces and saving millions of dollars. Selected optimal laser beam configuration, lubricant, shielding gas, and filler & base materials. Conducted assembly fixtures and jigs development, process DOE, and joint qualifications. (General Motors & NSF. Publications #1~9)• Automation, Sensing, & Control: Controlled CNC or 6-axis KUKA robotics and developed path-planning scripts for laser-based 3D printing and joining processes. Implemented closed-loop control and image processing techniques to monitor molten pool stability and adjust welding laser power. Utilized a range of sensors to monitor signals and measure transient temperature and thermal stress. • Mechanical Testing & Simulation: (1) Derived constitutive models: Applied the digital image correlation (DIC) for strain measurement, calibrated the anisotropic plasticity function of rolled aluminum 6xxx, and inversely derived the strain hardening model of AA4xxx by image-based FEA. (2) Performed thermomechanical, structural, or dynamic FEA using ANSYS APDL and validated models through experiments.• Thermal and Fluid: Utilized ANSYS Mechanical to quantify transient temperature and thermo-mechanical stresses in laser-based material processing and induction heating. Applied multiphysics simulations including boiling, evaporation, fluid dynamics, and solidification, and modeled multiphase interactions such as vapor/liquid/solid in laser welding, droplet spreading and solidification, gas bubble formation and movement, and shielding gas flow by using ANSYS Fluent, C++ user-defined functions, and MatLab.

• Designed cost-effective material systems (i.e., nickel alloys, TiC-reinforced Ni-Cr-Mo alloys, MoS2/titanium alloys, and Fe-based amorphous materials) for selective laser melting, laser cladding, TIG, plasma welding, and thermal spray. Performed powder metallurgy, fabricated coatings using powder feeding or wire feeding methods, and conducted XPS, XRD, SEM, and TEM analyses after corrosion and erosion tests. (State Grid and NSF, publications No. 11-17)

Getafe, Community Of Madrid, Es

• Designed Fe-15Al-xNb intermetallic-based materials for turbine blades. Examined microstructures of directionally solidified, as-cast, and heat-treated Fe-15Al-10Nb alloys using TEM, FIB, and SEM, tested mechanical properties (creep, fatigue, strength, fracture toughness, nano-indentation, and hardness) of alloys at different strain rates and temperatures, and published findings. (Publication #10; 1st authored: 1 journal paper)

Doctor Of Philosophy (Ph.D.), Mechanical Engineering

Master Of Science (M.S.), 1. Power Machinery And Engineering; 2. Materials Engineering

Master'S Degree, Computer Engineering

Ph.D Student, Mechanical Eng-Eng Mechanics