LIT_RS
Research scientists
Advance optics, alignment, focus, materials, and process-window science.
Typical titles: Optical scientist; resist scientist; stage/control researcher; computational lithography researcher
Public observability: Medium
LIT_PE
Production engineers
Own optical/mechatronic integration, exposure process control, overlay, calibration, and customer uptime.
Typical titles: Lithography systems engineer; optical engineer; alignment engineer; process engineer; field service engineer
Public observability: High
LIT_TE
Technicians
Perform optical assembly, alignment, calibration assistance, and repetitive maintenance or installation tasks.
Typical titles: Optical assembly technician; alignment technician; cleanroom installation technician
Public observability: Medium
LIT_TK
Tacit production know-how
Alignment compensation tricks; contamination avoidance during service; resist-stack practical tuning; customer-side recovery routines.
Typical titles: Held by senior optical engineers; field calibration leads; system integrators
Public observability: Weakly observable