Mechanical Engineer; gas​/water​/vacuum systems

Job Description

We are seeking a Mechanical Engineer (mid-level) to design and develop gas, water, and vacuum distribution systems for next‑generation reticle inspection systems. This role focuses on fluid delivery and control architectures operating in ultra‑high vacuum (UHV) environments, supporting system performance, reliability, and manufacturability. You will work cross‑functionally with systems, electrical, process, and manufacturing teams to deliver robust solutions from concept through production release.

• Design and develop gas, liquid cooling (water), and vacuum distribution systems for UHV semiconductor equipment
• Create system architectures including piping/tubing layouts, manifolds, valves, regulators, and filtration components
• Perform flow, pressure, and thermal analyses to ensure system performance and stability
• Develop and release detailed CAD models, drawings, and BOMs using enterprise PLM systems
• Ensure designs meet UHV compatibility requirements (materials selection, cleanliness, leak integrity, out gassing)
• Conduct and support design reviews (PDR, CDR) and failure mode analysis (FMEA)
• Partner with suppliers to define specifications and qualify components (valves, fittings, pumps, sensors)
• Support prototype builds, integration, and system bring‑up
  , including troubleshooting fluid/vacuum issues
• Collaborate with manufacturing engineering to ensure DFM/DFA and scalable production
• Drive continuous improvement for reliability, cost, and serviceability of fluid systems

• Hands‑on experience designing fluid systems (gas, liquid, or vacuum)
• Familiarity with vacuum systems
  , including pumps, seals, leak detection, and pressure regimes
• Proficiency with CAD tools (e.g., Solid Works, Creo, NX)
• Understanding of materials and compatibility for clean and vacuum environments
• Strong problem‑solving skills and ability to work in cross‑functional teams

• Experience with ultra‑high vacuum (UHV) systems and contamination control
• Knowledge of EUV systems or semiconductor process equipment
• Experience with thermal management and cooling systems
• Familiarity with CFD or flow simulation tools
• Understanding of industry standards (e.g., SEMI, ASME B31.3 for piping where applicable)
• Experience working in NPI (New Product Introduction) environments

• Systems thinking and ability to work across disciplines
• Attention to detail in high‑precision environments
• Strong communication and technical documentation skills
• Ownership mindset from concept through release

• High‑performance vacuum and gas delivery architectures enabling EUV inspection
• Precision cooling systems for thermal stability at nanometer‑level accuracy
• Complex integration challenges where mechanical, fluid, and vacuum systems intersect

Minimum Qualifications:

Bachelor's Level Degree and related work experience of 5 years

Base Pay Range: $ - $ Annually

Primary

Location:

USA-CA-Milpitas-KLAKLA'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.

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  or at  to request accommodation.