Mechanical Design Engineer – Process Media and Vacuum Systems (Pipe & Instrumentation Diagram)

KLA; Milpitas (CA); On-site; USD 141,300 - 240,200; Full time

Job summary

KLA is recruiting a Mechanical Design Engineer in Milpitas, CA, to own the system architecture for process media and vacuum systems in advanced semiconductor equipment. You will develop and maintain P&IDs, device lists, and interface definitions, while performing CAD work for routing and hardware integration.

The role requires strong CAD skills, experience with complex gas and cryogenic distribution, and collaboration across mechanical, electrical, software, manufacturing, service, and

Qualifications

• Degree in Mechanical Engineering or related field.
• Experience with gas, water, cryogenic, and/or vacuum distribution systems.
• Familiar with P&IDs, device lists, interface documentation, and system-level routing layouts.

Responsibilities

• Own the architecture for gas, water, LN2, and vacuum distribution systems.
• Develop and maintain P&IDs, device lists, interface definitions, and requirements allocations.
• Perform fluid flow and thermal simulations.
• Create CAD models and layouts for routing architecture and hardware integration.
• Perform hands-on mechanical design and guide CAD routing for cables, piping and hardware.
• Lead architecture tradeoffs and select major components (valves, pumps, regulators, filters, gauges, manifolds, sensors).
• Define system requirements and allocations across mechanical, electrical, software, and other teams.
• Help define interfaces, interlocks, and sequencing concepts for safe operation (SEMI-S2, ASME, PED).
• Support system integration, design reviews, troubleshooting, and productization including documentation for high volume production.

Skills

Mechanical design

CAD modeling

Fluid flow simulations

Multidisciplinary teamwork

Education

Bachelor's degree in Mechanical Engineering

Master's degree in Mechanical Engineering

Doctorate (Academic) Degree

Job description

Company Overview

KLA is a global leader in diversified electronics for the semiconductor manufacturing ecosystem. Our technologies support virtually every electronic device, including laptops, smartphones, wearables, and smart cars. KLA invents systems and solutions for the manufacturing of wafers and reticles, integrated circuits, packaging, PCBs and flat panel displays. We focus on innovation and invest 15% of sales back into R&D, with expert teams collaborating to accelerate tomorrow's devices.

Group/Division

With over 40 years of semiconductor process control experience, chipmakers rely on KLA to ramp next-generation devices to volume production quickly and cost-effectively. The Global Products Group (GPG) creates KLA's metrology and inspection products. The RAPID division provides reticle inspection solutions for mask shops and semiconductor fabs to ensure lithography yields remain high for cost-effective manufacturing.

Job Description

The Mechanical Design Engineer will own the system architecture for process media and vacuum systems in advanced semiconductor equipment, including gas, water, LN2, and vacuum distribution. This role develops and maintains key system documentation such as P&IDs, device lists, interface definitions, and related architecture documents, while collaborating across mechanical, electrical, software, manufacturing, service, and reliability teams. The engineer will perform CAD work for routing architecture, support detailed mechanical design, and guide contractors in routing piping/tubing and related hardware. Familiarity with MBSE is a plus.

Key Responsibilities

• Own the architecture for gas, water, LN2, and vacuum distribution systems.
• Develop and maintain P&IDs, device lists, interface definitions, and requirements allocations.
• Perform fluid flow and thermal simulations.
• Create CAD models and layouts for overall routing architecture and hardware integration.
• Perform hands-on mechanical design and guide support teams to perform CAD routing for cables, piping and associated hardware.
• Lead architecture tradeoffs and guide selection of major components such as valves, pumps, regulators, filters, gauges, manifolds, and sensors.
• Define system requirements and allocate them to impacted subsystems and technical owners across mechanical, electrical, software, manufacturing, service, reliability, and regulatory functions.
• Help define interfaces, interlocks, and sequencing concepts needed for safe and effective system operation (SEMI-S2, ASME, PED, ...).
• Work across functions to support system integration, design reviews, troubleshooting, and productization including full documentation for high volume production.
• Support prototype build, system bring-up, testing, and debugging of routing, distribution, and integration issues.
• Interface with vendors and internal stakeholders to communicate requirements clearly and help ensure technical solutions meet performance, quality, and documentation expectations.
• Prepare and support technical content required for requirements, concept, and detailed design reviews.

Desired Qualifications

• Degree in Mechanical Engineering or related field.
• Strong experience with complex gas, water, cryogenic, and/or vacuum distribution systems.
• Experience with P&IDs, device lists, interface documentation, and system-level routing layouts.
• Perform fluid flow and thermal simulations.
• Strong mechanical design and CAD skills, including routing and integration work.
• Experience working in multidisciplinary engineering teams and supporting prototype build, integration, and troubleshooting.

Minimum Qualifications

Doctorate (Academic) Degree and related work experience of 3 years; Master's Level Degree and related work experience of 6 years; Bachelor's Level Degree and related work experience of 8 years.

Base Pay Range: $141,300.00 - $240,200.00 Annually.

Primary Location: USA-CA-Milpitas. KLA's total rewards package includes medical, dental, vision, life, 401(k) with company matching, ESPP, tuition reimbursement, and other benefits. Interns are eligible for some benefits listed. Pay ranges vary by role, level, and location, and actual pay depends on factors including experience and education.

Equal Opportunity and Additional Information

KLA is an Equal Opportunity Employer. We provide reasonable accommodation to qualified individuals with disabilities during the job application or interview process, to perform essential job functions, and to receive other employment benefits. If you need accommodation, please contact [e-mail].