KLA Careers

Staff Optical R&D Engineer

Company Overview

Calling the adventurers ready to join a company that's pushing the limits of nanotechnology to keep the digital revolution rolling. At KLA, we're making technology advancements that are bigger—and tinier—than the world has ever seen.

Who are we?  We research, develop, and manufacture the world's most advanced inspection and measurement equipment for the semiconductor and nanoelectronics industries. We enable the digital age by pushing the boundaries of technology, creating tools capable of finding defects smaller than a wavelength of visible light. We create smarter processes so that technology leaders can manufacture high-performance chips—the kind in that phone in your pocket, the tablet on your desk and nearly every electronic device you own—faster and better. We're passionate about creating solutions that drive progress and help people do what wouldn't be possible without us.  The future is calling. Will you answer?


The Office of the Chief Technology Officer (CTO) plays a critical role in developing advanced long-range technology in collaboration with product divisions and strategic marketing, working on future technology like light sources, lasers, and sensors. We are engaged in the research and development process, and once the technology is mature, we partner with product engineering groups who then build products based on the technology we’ve developed.

The Office of the CTO also provides technical input into KLA’s strategic planning process, program reviews and Product Life Cycle (PLC) phases. We provide our broad technology expertise and cross-division experience to ensure we leverage the collective knowledge within our company.



This is a R&D position within a dynamic and innovative technology development team, focusing on illumination source technologies required for next generations of wafer inspection and metrology equipment. The main responsibility of this position is to manage all aspects of optical module designs from evaluating initial specifications to validating performance of finished prototypes, including tasks listed below:

  • As a critical part of CTO SG team, work with scientists in CTO US to gain deep understanding of technology and engineering challenges of illumination sources, such as lasers and broadband plasma.Replicate the proven system from CTO US, run reliability tests and characteristic measurements and use the learnings towards a more robust design.
  • Work closely with the systems group to develop the fundamental specifications of illumination system and drive down to requirements for optical design, with the consideration of desired system performance, achievable optics capability and other factors.
  • Design lenses and optical subsystems in ZEMAX or equivalent optical modeling software, including lens elements, multi-lens systems, or other optical components, systems or subsystems. Conduct optical tolerance, aberration, stray light, and sensitivity analyses of optical designs, as necessary.
  • Design and execute multi-disciplinary experiments, create detailed test plans and summary reports for system performance validation. Analyze experimental data and compare with simulation model for design correlation and optimization.
  • Create and review specifications, concepts, and design documents throughout the development cycle.
  • Be an effective communicator and team player while working with other engineering groups, such as laser systems engineer, mechanical design engineer and electric design engineer, to ensure flawless design, integration and test at the subsystem and system level.


  • Master's level degree in optics engineering or related with at least 8 years of experience or
  • Doctorate (Academic) in optics engineering or related with at least 5 years of experience
  • Experience as a direct contributor in optical system design and tolerancing (in Zemax OpticStudio and/or CODE V) from concept to fieldable prototype or product.
  • Must have experience of aligning, debugging and characterizing optical systems.
  • Experience with beam shaping design is a plus
  • Experience with thermal management in high power laser system is a plus
  • Must be a good team player