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Optical Metrology System Designer

ASML – Wilton, CT


ASML brings together the most creative minds in science and technology to develop lithography machines that are key to producing faster, cheaper, more energy-efficient microchips. We design, develop, integrate, market and service these advanced machines, which enable our customers - the worlds leading chipmakers - to reduce the size and increase the functionality of their microchips, which in turn leads to smaller, more powerful consumer electronics. Our main headquarters are located in Veldhoven, the Netherlands, and we also have 18 office locations around the United States- including main offices in Wilton, CT, Chandler, AZ, San Jose, CA and San Diego, CA.

Job Mission

ASML in Wilton CT is seeking an Optical Engineer / Physicist in the Optical Modules Development Group US to work with a multi-discipline engineering team to define and develop optical / photonic sensor systems and/or test equipment used within ASMLs photolithography and/or metrology equipment. These systems typically include light sources, detectors, optical / electro-optical components, fiber optics, electronics and signal processing SW. Understanding the components in their relation to the sensor system function and understanding the interaction with the rest of the metrology or lithography system is of fundamental importance.

ASML is a world leader in the manufacture of advanced technology systems for the semiconductor industry. ASMLs corporate headquarters is in Veldhoven, the Netherlands. Manufacturing sites and research and development facilities are located in Connecticut, California and the Netherlands. Technology development centers and training facilities are located in the United States, Japan, Korea, the Netherlands, and Taiwan. Additionally, ASML provides optimal service to its customers via over 50 sales and service organizations in 16 countries. Founded in the Netherlands in 1984, the company is publicly traded on Euronext Amsterdam and NASDAQ under the symbol ASML.

Job Description

The main focus of this position will be:
  • Leading the design team in test equipment development to find solutions to difficult technical problems in an efficient manner.
  • Decomposition of top-level system requirements into lower level module, sub-module, or component level design specifications for product or test equipment towards the engineering team.
  • Deriving specifications for module, sub-module, or test equipment consistent with our manufacturing practices.
  • Development of alignment methods for complex optical sensors and systems.
  • Development of tooling and test equipment to support optical sensor alignment methods.
  • Develop clear understanding of optical tests needed for qualifying optical sub-modules.
  • Preparation of leading system engineer documentation (Element Performance Specifications, Element Design Specifications, Test Performance Specification; Test Analysis Reports) through review, release and change control.
  • Support preparation of design reviews for the development team.
  • Write engineering procedure and train technicians to efficiently transfer the build/ alignment & test process to manufacturing.
  • Supporting systems in the factory and in the field, by being able to relate observed sensor anomalies to potential system defects.
  • Clearly communicating progress and status of ongoing technical activities to senior management.
  • Understanding how the performance of the sensor system affects the performance of ASMLs equipment.
  • Some travel ( ~ 20%) to Europe, Asia, and within the US can be expected.


Minimum MS in Optical Engineering, or Physics with an emphasis on Optical metrology. Candidates with BS in optical engineering or optical physics with at least 5 years experience in Optical Metrology will be considered.


  • Be experienced with diverse optical metrology setups: Interferometers, Shack Hartmann sensor, polarimetry/ellipsometry & Optical alignment.
  • Be experienced in optical design/ analysis software like: CodeV and/or Zemax; FRED; MATLAB.
  • Have competencies in: optical design theory, lasers, polarization, detectors, electro-optical devices and opto-mechanical constructions.

Personal skills

  • Have strong written and oral communicative skills and a commitment to achieving results on time.
  • Demonstrated team player with a quality orientation and interpersonal skills.
  • 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).
  • Be willing to own the integrated systems performance, and support the entire product life-cycle (development through sustaining engineering), strive to deliver the right design solution for the right cost at the right time.

Context of the position

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
  • While performing the duties of this job, the employee routinely is required to sit; walk; talk; hear; use hands to keyboard, finger, handle, and feel; stoop, kneel, crouch, twist, reach, and stretch.
  • The employee is occasionally required to move around the campus.
  • The employee may occasionally lift and/or move up to 20 pounds.
  • May require travel dependent on company needs.
  • Specific vision abilities required by this job include close vision, color vision, peripheral vision, depth perception, and ability to adjust focus.
  • Can work under deadlines.
  • The environment generally is moderate in temperature and noise level.
  • Must be able to read and interpret data, information, and documents.
  • 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.

Other information

EEO/AA (W/M/Vets/Disability) Employer.

This position requires access to controlled technology, as defined in the Export Administration Regulations (15 C.F.R. 730, et seq.). Qualified candidates must be legally authorized to access such controlled technology prior to beginning work. Business demands may require ASML to proceed with applicants who are immediately eligible to access controlled technology.

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