Process Engineer - Photolithography

7700 S River Pkwy Tempe, AZ 85284 /
Engineering /
/ On-site
The Company:

Solestial, Inc. is the solar energy company for space.  Solestial’s core technology is a breakthrough ultra-thin silicon solar cell that can self-cure radiation damage at normal operating temperatures in space, packaged in a flexible, lightweight panel designed to achieve minimum degradation for up to 10 years in LEO.  Solestial panels can be mass-produced using automated machines resulting in costs 90% lower than incumbent technologies, with virtually unlimited manufacturing capacity.  From today’s satellite constellations and research projects to tomorrow’s utility-scale energy infrastructure and services in space, Solestial is powering the new space economy.

The Role:

As a Photolithography Process Engineer you will be the owner of photoresist patterning (photoresist deposition, curing, UV exposure and development) at Solestial R&D line and will transition photoresist patterning processes to a new mass production line. This will include running baseline production lots, running SPC and troubleshooting tool failures, developing new patterning processes, transferring R&D photoresist patterning processes to large-scale manufacturing tools, developing SOPs and training operators. 

This is an exciting position as part of a positive, supportive, and passionate team! A competitive compensation package, including equity and full benefits (see below), will be offered.

Specific Responsibilities to Include:

    • Run baseline photoresist patterning recipes for pilot production lots. 
    • Characterize the formed photoresist masks (optical microscopy, profilometry, SEM). 
    • Analyze characterization data and present to the technical team. 
    • Develop new technological equipment to improve photoresist patterning quality.
    • Develop new photoresist patterning processes to improve characteristics of the solar cells. 
    • Work in close collaboration with sputtering and electroplating engineers as well as solar cell engineers to improve the performance of photoresist patterning.
    • Troubleshoot the issues with the tools and work with equipment technicians on mitigation. 
    • Transition photoresist patterning processes to large scale production tools. 
    • Train tool operators. 
    • Follow safety requirements and prevent accidents. 
    • Maintain clean work environment.

Your Background:

    • Bachelor degree in Engineering, Materials Science, Physics or related fields. 
    • Ability to work in a class 1,000 clean room environment. 
    • Ability to occasionally conduct wet etching wearing the necessary PPE. 
    • Ability to work in a dynamic environment. 
    • Strong analytical skills, basic data analysis and presentation, clear communication. 
    • Positive attitude. 
    • Previous experience with photolithography (solar cells, PCBs or ICs) is a strong plus.

Our Benefits:

    • Generous, high-quality medical, dental and vision coverage on day one of employment
    • A minimum of 15 days PTO and 10 paid holidays annually
    • 401K with employer match up to 4% of salary
    • Employer-paid short-term and long-term disability and employer-sponsored life insurance