Senior Electron Optics Engineer

Overview

At PDF Solutions, we are at the forefront of revolutionizing the semiconductor industry. Our cutting‑edge technologies and data‑driven solutions empower semiconductor manufacturers to achieve unprecedented levels of efficiency, quality, and innovation. By joining our team, you'll have the opportunity to work with some of the brightest minds in the industry, tackle complex challenges, and contribute to groundbreaking advancements that shape the future of technology.

Headquartered in Santa Clara, California, PDF Solutions also operates worldwide in Canada, China, France, Germany, Italy, Japan, Korea, and Taiwan.

PDF Solutions is seeking a Senior Electron Optics Engineer to drive the R&D, manufacturing and delivery of state‑of‑the‑art eProbe electron beam inspection systems used in semiconductor wafer manufacturing facilities for yield ramp and manufacturing control. The senior electron optics engineer will be responsible for leading the design and simulation of electron optical systems from concept to high volume manufacturing. A successful candidate will be a highly motivated and self‑driven team player with strong analytical skills and possess the drive to deliver high quality results in a dynamic, multi‑disciplined and highly productive environment.

• Lead electron optics simulations to drive column architecture design improvements
• Use simulations to drive new modes of column operation
• Hands‑on work operating and characterizing electron beam columns; collect data to validate simulations results
• Bring up new columns, guns, and operate test fixtures
• Run simulations needed for column design: heat transfer, vacuum, high voltage, electrostatics, solid mechanics, surface charging, and beam trajectories
• Create system requirements, error budgets, tolerance analysis stack‑ups and test plans
• Design and simulate non‑rotationally symmetric column elements such as Wien filters and high precision energy filters
• Develop and optimize the performance of high brightness electron sources; lead research projects to study source brightness, emission stability, lifetime and energy spread
• Identify and investigate innovative concepts and technologies for performance improvements

• PhD in physics, electrical/mechanical engineering, materials science, or a related field, and over 5 years of relevant work experience
• Expertise in electron optics and a proven track record of designing and operating electron beam inspection systems
• Background in the design, modeling, testing and characterization of electron sources
• Proficiency with electron optics simulation software (eg. MEBS, SIMION)
• Experience running finite element software packages (e.g. COMSOL, OPERA)
• Proficiency with a scripting language (e.g. Python, Matlab)
• Experience with CAD software (e.g. SOLIDWORKS)
• Experience with high vacuum systems
• Experience with high voltage power supplies and electron beam electronics
• Knowledge of surface science and experience running simulations of electron‑material interactions (e.g. simulations packages such as JMONSEL)

• Prior experience with voltage contrast imaging is valuable
• Background in advanced semiconductor manufacturing and manufacturing tools

USD $ - USD $ /Yr.