Process Integration/Lithography Engineer

About Xanadu

Xanadu’s mission is to build quantum computers that are useful and available to people everywhere. We are learners, innovators, researchers, collaborators, and problem solvers creating something that has never been built before. This is a moon-shot effort: if successful, the technologies we develop will solve some of the world’s most challenging problems and literally change the world.

Responsibilities

• Process Integration & Quantum Hardware Development
  • Coordinate between several internal component teams to ensure all hardware requirements are satisfied in delivered chips and circuits.
  • Innovate in photonic process development and process integration, especially for ultra-low loss components.
  • Collaborate with internal and external photonics process engineers to refine fabrication procedures for ultra-low loss photonic quantum computing chips.
  • Work with Xanadu’s foundry partners to continuously improve lithography approach while balancing competing fabrication requirements.
  • Deliver integrated quantum photonics chips and circuits containing multiple active and passive components.
• Lithography & Tapeout Ownership
  • Build, define, and own the entire photolithography and tapeout module from layout receipt to final wafer patterning.
  • Receive GDS design files and manage the tapeout cycle with external mask shops.
  • Define specifications for OPC aggressiveness, dummy fill density rules, and Optical Rules Check (ORC) targets.
  • Develop and enforce the Lithography Design Rule Manual and provide critical Design for Manufacturing (DFM) feedback to layout teams.
  • Define scanner illumination conditions and tune Numerical Aperture/Sigma settings to maximize process windows.
  • Execute rigorous focus/exposure matrices, optimize photoresist/BARC chemistries, and establish metrology baselines to ensure strict CD and overlay control.
  • Stay abreast of new developments in photonics fabrication process development and advanced patterning.

Requirements

• MS, or Ph.D. in Electrical Engineering, Physics, Materials Science, Chemical Engineering, or a related technical field.
• 5+ years experience in a foundry environment for semiconductor and/or integrated photonics products, including experience owning lots and working with an MES.
• Familiarity with standard semiconductor and photonics metrology and failure analysis techniques, including some subset of: SEM, TEM, AFM, defect inspection, ellipsometry, XRR/XRD, SIMS, Raman spectroscopy.
• Familiarity with photonic components, such as waveguides, beamsplitters, resonators, MZIs, etc.
• Deep, hands-on expertise with advanced 300mm scanners.
• Demonstrated experience managing tapeout cycles, specifying mask requirements, and reviewing ORC/OPC verification data.
• Ability to tackle challenging problems and develop innovative solutions.
• Excellent communication skills and strong sense of teamwork.

Preferred Qualifications

• Experience building lithography modules within a mature technology flow.
• Strong understanding of advanced mask writing technologies and the fundamental physics of lithographic imaging.
• Experience owning lots in SiView MES.
• Experience with product development cycle from R&D through volume ramping.
• Experience in photonic quantum computing hardware development.
• Demonstrated track record of delivering finished integrated photonics products.
• Experience working in fabless companies.
• Preferred location: Albany, NY area.

Pay

Base salary range: 110,000 - 150,000 USD. Eligible for equity and benefits.