SENIOR ENGINEER - #1175412

• Lead design and engineering of UPW generation and distribution systems for semiconductor fabs.
• Develop process design basis, PFDs, P&IDs, hydraulic calculations, and specifications.
• Oversee design of pretreatment (RO/UF), primary purification (EDI/IX), and polishing systems (UV, mixed bed, membrane degasification).
• Define distribution loop design including constant recirculation, velocity control, and dead-leg elimination.
• Perform flow, pressure drop, and loop balancing calculations.
• Interface with tool engineers to ensure UPW quality requirements are met at point-of-use.
• Review vendor design packages and manage EPC contractors.
• Drive optimization of water usage and recovery efficiency.

• Design multi-stage UPW systems (Pre-treatment → RO → EDI → Polishing Loop).
• Ensure high purity standards: Resistivity 18.2 MΩ·cm, TOC < 1 ppb, particles < critical limits.
• Control ionic, organic, and microbial contamination.
• Develop loop design ensuring continuous recirculation and temperature control.
• Implement redundancy (duty/standby trains) for 24/7 operation.Distribution System Design
• Design UPW distribution loop with high purity PVDF piping.
• Maintain flow velocity (1–2 m/s typical) to prevent stagnation.
• Eliminate dead legs and maintain sanitary design practices.
• Integrate point-of-use filters, UV oxidation, and TOC monitoring.
• Ensure pressure stability at tool interface.

Required