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.

Group/Division

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

Key Responsibilities:

We are seeking a Mechanical Design Engineer to support development, integration, and alignment of EUV source opto‑mechanical subsystems. This role focuses on precision mechanical design and alignment of EUV optics, vacuum chambers, and Laser Beam Delivery hardware in a highly constrained, ultra‑clean, and high‑stability environment.The ideal candidate will work closely with optics, laser, plasma, vacuum, controls, and system integration teams to enable robust alignment strategies and deliver high‑performance source hardware from concept through test and deployment.

Mechanical Design & Opto‑Mechanical Support

• Design and detail precision mechanical components and assemblies supporting EUV source optics, opto‑mechanical mounts, and alignment hardware.

• Develop designs compatible with ultra‑high vacuum (UHV), thermal stability, contamination control, and high‑power laser environments.

• Support mechanical interfaces between EUV optics, vacuum chambers, and source subsystems.

Alignment & Integration:

• Support EUV optics alignment, including definition of datums, shimming strategies, adjustability ranges, and tolerance stack‑ups.

• Contribute to vacuum chamber alignment concepts and procedures to ensure optical and mechanical reference consistency.

• Support Laser Beam Delivery Unit alignment, including opto‑mechanical mounts, beam path stability, and serviceability considerations.

• Participate in system‑level integration, alignment builds, and troubleshooting during lab and tool bring‑up.

Analysis & Documentation:

• Perform tolerance analysis, basic structural and thermal assessments, and alignment sensitivity studies.

• Create and maintain detailed CAD models, drawings, BOMs, and engineering documentation.

• Support design reviews, risk assessments, and failure analysis related to alignment stability and mechanical performance.

Cross‑Functional Collaboration

• Work closely with optical, laser, plasma physics, vacuum, controls, and manufacturing engineers.

• Support transition from R&D prototypes to more robust, manufacturable designs.

Preferred Qualifications:

• Experience with vacuum and laser systems, or semiconductor capital equipment.

• Familiarity with optical alignment methods, metrology tools, and reference frame management.

• Experience designing for thermal stability, vibration sensitivity, and long‑term alignment repeatability.

• Exposure to UHV systems, contamination control, or cleanroom assembly.

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

• Strong experience with precision mechanical design and 3D CAD (e.g., Creo, Solid Works, NX, or equivalent).
• Hands‑on exposure to optics, opto‑mechanical systems, or alignment‑critical hardware.
• Experience working with vacuum-compatible designs (materials, fasteners, cleanliness).
• Ability to work effectively in a cross‑disciplinary R&D environment.
• Clear technical communication skills (drawings, procedures, design reviews).

Base Pay Range: $0.00 - $0.00 Annually

Primary Location: USA-CA-Milpitas-KLA

KLA’s total rewards package for employees may also include participation in performance incentive programs and eligibility for additional benefits including but not limited to: medical, dental, vision, life, and other voluntary benefits, 401(K) including company matching, employee stock purchase program (ESPP), student debt assistance, tuition reimbursement program, development and career growth opportunities and programs, financial planning benefits, wellness benefits including an employee assistance program (EAP), paid time off and paid company holidays, and family care and bonding leave.

Interns are eligible for some of the benefits listed. Our pay ranges are determined by role, level, and location. The range displayed reflects the pay for this position in the primary location identified in this posting. Actual pay depends on several factors, including state minimum pay wage rates, location, job-related skills, experience, and relevant education level or training. We are committed to complying with all applicable federal and state minimum wage requirements where applicable. If applicable, your recruiter can share more about the specific pay range for your preferred location during the hiring process.

KLA is proud to be an Equal Opportunity Employer. We will ensure that qualified individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us at talent.acquisition@kla.com or at +1-408-352-2808 to request accommodation.

Be aware of potentially fraudulent job postings or suspicious recruiting activity by persons that are currently posing as KLA employees. KLA never asks for any financial compensation to be considered for an interview, to become an employee, or for equipment. Further, KLA does not work with any recruiters or third parties who charge such fees either directly or on behalf of KLA. Please ensure that you have searched KLA’s Careers website for legitimate job postings. KLA follows a recruiting process that involves multiple interviews in person or on video conferencing with our hiring managers. If you are concerned that a communication, an interview, an offer of employment, or that an employee is not legitimate, please send an email to talent.acquisition@kla.com to confirm the person you are communicating with is an employee. We take your privacy very seriously and confidentially handle your information.