Optical Design Engineer | KLA

September 27, 2023
May 31, 2024
5 Technology Dr., Milpitas, CA
Job Type
IA Member?
Job Focus
  • Optics
  • Optical Engineering
Student Standing Desired
  • MS
  • PhD
Citizenship Desired or Required
  • International Student
  • Permanent Resident
  • US Citizen


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Company Overview

KLA is a global leader in diversified electronics for the semiconductor manufacturing ecosystem. Virtually every electronic device in the world is produced using our technologies. No laptop, smartphone, wearable device, voice-controlled gadget, flexible screen, VR device or smart car would have made it into your hands without us. KLA invents systems and solutions for the manufacturing of wafers and reticles, integrated circuits, packaging, printed circuit boards and flat panel displays. The innovative ideas and devices that are advancing humanity all begin with inspiration, research and development. KLA focuses more than average on innovation and we invest 15% of sales back into R&D. Our expert teams of physicists, engineers, data scientists and problem-solvers work together with the world’s leading technology providers to accelerate the delivery of tomorrow’s electronic devices. Life here is exciting and our teams thrive on tackling really hard problems. There is never a dull moment with us.


With over 40 years of semiconductor process control experience, chipmakers around the globe rely on KLA to ensure that their fabs ramp next-generation devices to volume production quickly and cost-effectively. Enabling the movement towards advanced chip design, KLA's Global Products Group (GPG), which is responsible for creating all of KLA’s metrology and inspection products, is looking for the best and the brightest research scientist, software engineers, application development engineers, and senior product technology process engineers. The RAPID division is the world leading provider of reticle inspection solutions for the semiconductor industry. The company provides inspection solutions to both the mask shops and the semiconductor fabs to ensure that lithography yields are consistently high thus enabling cost-effective manufacturing.

Job Description/Preferred Qualifications

General responsibilities are to design, develop, build and qualify various optical subsystems that make up the inspection tool. Specific deliverables include optical system design, optical alignment methodology, and analysis of various optical modules.  This person will also lead the design of a custom metrology system to verify and adjust the optical performance of our primary optical system.  The candidate will interact closely with the systems engineering group to define performance criteria and system level specification.  During the design phase the candidate will work with hardware and software design teams following a rigorous product design protocol.  Specific tasks include creating optical models, statistical tolerance analysis, performance predictions, leading design reviews, creating test procedures, and selecting suppliers.


  • Investigate different design options and finding the best option through evaluating tolerances, manufacturability, light budgets and other trade-offs.
  • Translate system or subsystem requirements into optical design and manufacturing requirements.
  • Perform thorough tolerancing analysis to have a complete system design with full consideration of alignment process and metrology, system calibrations and opto-mech design limitations by interfacing with other groups (systems, ME).
  • Design and implement optical alignment and metrology process, test/tooling fixtures to achieve targeted optical performance.
  • Follows complete design process, including design reviews, part procurement from vendors, testing, integration and release.
  • Debug, and trouble-shooting of any optical problems that arise with the system


  • Optical design in imaging and illumination systems delivering in-spec performance, cost and manufacturability on time
  • Statistical optical component and alignment tolerancing
  • Able to create specs for precision opto-mechanical assemblies
  • Proficiency in optical modeling software such as CodeV or Zemax or LightTools
  • Non-sequential ray tracing using Light Tools to model high precision optics surface scattering, conduct stray light analysis
  • Optical module and system build, alignment and debugging
  • Test stand design and build: concept, error budget, realization
  • Working knowledge with diverse optical devices and components such as objectives, collimator, CGH, and relay optics, fibers, cameras, lasers and detectors
  • Strong understanding in optics and physics enabling to analyze complex optical phenomena
  • Proficiency in computing language such as Matlab, Pytheon


  • Desired to have three to five years of professional experience in high end optical system development
  • Experience in working with engineers across disciplines to solve complex problems in a timely manner.
  • Strong emphasis on creative problem solving and effective communication.
  • Be able to interface with multidisciplinary groups and work effectively in a team and be willing to take on responsibility, follow through and keep multiple simultaneous assignments on schedule.
  • Be able to quickly acquire technical knowledge from documentation and on-the-job training and be capable of thoroughly investigating technical issues (analytically and hands-on in a lab).
  • Strong communication and presentation skill. Must have the capability to clearly communicating progress and status of ongoing investigations to managers and to customers; Candidate will be required to write reports documenting investigations carried out.

Personal skills

  • Can observe and respond to people and situations and interact with others encountered in the course of work.
  • Can learn and apply new information or skills.
  • Must be able to read and interpret data, information, and documents.
  • Strong customer focus and commitment to customer satisfaction through prioritization, quality, efficiency and professionalism.
  • Ability to complete assignments with attention to detail and high degree of accuracy.
  • Proven ability to perform effectively in a demanding environment with changing workloads and deadlines.
  • Result driven-demonstrate ownership and accountability.
  • Identifies bottlenecks and drives improvements.
  • Work independently or as part of a team and follow through on assignments with minimal supervision.
  • Demonstrate open, clear, concise and professional communication.
  • Ability to establish and maintain cooperative working relationships with manager, co-workers and customer.
  • Work according to a strict set of procedures within the provided timelines


  • MS or Ph.D in Optical engineering (preferred) or Physics
  • Highly desired to have strong background in following disciplines, Geometrical optics, Fourier optics, Lens design, Radiometry, Optical metrology, Illumination optics, Optical imaging system, Optical alignment

Minimum Qualifications

Doctorate (Academic) Degree and 0 years related work experience; Master's Level Degree and related work experience of 3 years; Bachelor's Level Degree and related work experience of 5 years

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