T1 Energy builds domestic solar and battery supply chains through advanced American manufacturing. Scalable, reliable, and low-cost energy for America. Backed by Vermont Center for Emerging Technologies (VCET).
About the role
T1 is seeking a Senior Wet Etch Engineer to develop, qualify, and own the wet chemical processes used to manufacture TOPCon solar cells at scale, including texturing, cleaning, and etch steps. You’ll apply a physics-based approach to process development, partner across engineering teams, and drive cell efficiency and yield improvement as we bring a new high-volume fab online. Found on 1752vc Careers, the job board for startup and VC roles.
What they're looking for
- A wet process practitioner — you know wet etch and wet clean well and have hands-on development and manufacturing experience to back it up
- A first-principles thinker who looks for the mechanism behind a result, not just the recipe that produced it
- Rigorous and data-driven, with strong Design of Experiments and statistical analysis skills
- Collaborative and proactive across process, equipment, metrology, quality, and R&D teams
- Energized by the challenge of scaling advanced cell technology in a new fab environment
- Degree in Chemical Engineering, Materials Science, Electrical Engineering, Physics, or a related technical field, or equivalent experience
More about this role
T1 is seeking a Senior Wet Etch Engineer to develop, qualify, and own the wet chemical processes used to manufacture TOPCon solar cells at scale, including texturing, cleaning, and etch steps. You’ll apply a physics-based approach to process development, partner across engineering teams, and drive cell efficiency and yield improvement as we bring a new high-volume fab online.
• Develop, qualify, and own wet processes for TOPCon cell manufacturing, including saw damage removal, alkaline texturing, rear-side etch and polish, edge isolation, and pre-deposition and pre-diffusion cleans
• Own bath chemistry, concentration control, temperature management, dosing, and bath life for alkaline, acidic, and oxidizing chemistries, including HF, KOH/NaOH, and ozone-based steps
• Optimize BSG, PSG, and polysilicon wrap-around removal, texture quality, reflectance, and surface cleanliness to improve cell efficiency, minority carrier lifetime, and passivation performance
• Qualify inline and batch wet process tools from installation through production readiness, partnering with Equipment, Metrology, and Quality on process matching, particle and metal contamination control, and wafer breakage...
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