Sr Crystal Growth Technician

Coherent•Budd Lake, NJ

2d•Onsite

About The Position

The Sr Crystal Growth Technician will be responsible for preparing, verifying, and documenting raw materials, dopants, seeds, and charge calculations. They will assemble and inspect hot zones, and set up, operate, and monitor CZ growth systems for SGGG production, supporting additional oxide systems as needed. This role requires maintaining operational control of key growth parameters, identifying and responding to process drift or equipment instability, and executing controlled heat-up, growth, and cooldown sequences. The technician will perform in-process and post-growth evaluations, accurately record process data, and participate in root-cause investigations. Additionally, they will train and mentor junior technicians and maintain strict adherence to safety and high-temperature operating standards.

Requirements

Minimum eight (5) years of experience in CZ crystal growth or high-temperature oxide manufacturing
Proven ability to independently operate complex crystal growth systems in a production environment
Strong knowledge of thermal management, melt behavior, and process repeatability
Experience with controlled documentation, deviation management, and manufacturing discipline
Demonstrated troubleshooting capability for crystal growth systems and infrastructure-related disruptions
Mechanical aptitude for hot zone assembly and equipment upkeep
Proficiency in data entry systems and Microsoft Office tools
Strong attention to detail, safety awareness, and process ownership mindset

Nice To Haves

Associate degree in Engineering Technology, Materials Science, or related technical discipline
Experience with SGGG and/or similar high-temperature oxide materials
Experience supporting transition from development to standardized production
Experience mentoring less-experienced technicians

Responsibilities

Prepare, verify, and document raw materials, dopants, seeds, and charge calculations per controlled procedures
Assemble and inspect hot zones to ensure mechanical integrity and thermal symmetry
Set up, operate, and monitor CZ growth systems for SGGG production; support additional oxide systems as needed
Maintain operational control of key growth parameters to ensure repeatable execution within defined process windows
Identify and respond to process drift, equipment instability, or infrastructure-related interruptions
Execute controlled heat-up, growth, and cooldown sequences to minimize thermal stress and yield loss
Perform in-process and post-growth evaluations in compliance with traceability and quality requirements
Accurately record process data, deviations, and observations in controlled documentation systems
Participate in root-cause investigations related to yield loss and equipment stability
Train and mentor junior technicians; review setups for procedural compliance
Maintain strict adherence to safety and high-temperature operating standards