Job Description & Requirements
We are seeking a highly skilled Senior Electrical & Sensor Systems Engineer to lead the design and development of electrical control systems and advanced sensing architectures for nextgeneration Smart Gas Boxes, Smart Valves, Digital Regulators, and MFCbased gas delivery systems for semiconductor manufacturing.
This role combines electrical power & control engineering, PLC automation, PCBA design, and highprecision sensor system development. The engineer will own endtoend responsibility - from sensor selection and calibration through control logic, safety interlocks, validation, and production readiness.
Key Responsibilities
1. Electrical Systems, Controls & PLC
- Design and develop electrical power, control, and interlock systems for UHP gas boxes and mechatronic subsystems
- Create detailed electrical schematics, wiring diagrams, and PCBA designs for control, sensing, and safety circuits
- Develop and validate PLC programs (Siemens, Allen Bradley, Omron, Beckhoff) for automation, monitoring, and safety logic
- Perform PLC I/O validation, HMI integration, interlock testing, and system troubleshooting.
- Ensure compliance with SEMI S2, IEC 60204, ISO 12100, ASME B31.3, and fab safety requirements.
2. Sensor Architecture & Signal Electronics
- Define sensing architecture for flow, pressure, temperature, and valve position across smart gas platforms.
- Select sensing technologies including MEMS thermal sensors, differential pressure flow sensors, pressure sensors, RTDs, thermocouples, and position sensors.
- Design low noise analog front end circuits, excitation, biasing, filtering, and temperature compensation.
- Work with embedded teams on ADC selection, sampling strategy, synchronization, and firmware interfaces.
- Ensure EMI/EMC, ESD robustness, grounding, and electrical isolation suitable for fab environments
3. Mechanical, Fluidic & Materials Integration
- Define sensor placement within flow paths, valve bodies, and regulators.
- Minimize dead volume, flow disturbance, particle generation, and thermal gradients.
- Select materials compatible with UHP, corrosive gases, and high temperature operation.
- Collaborate on sealing concepts, surface finishes, and thermal management
4. Calibration, Reliability & Data
- Design factory and field calibration procedures.
- Generate calibration curves, compensation models, and gas correction factors.
- Characterize sensor drift, aging, cross sensitivity, and lifetime behavior.
- Support predictive maintenance and AI/ML based diagnostics using sensor datasets.
5. Testing, Validation & Manufacturing Support
- Build and operate electrical, flow, pressure, and thermal test setups.
- Perform accuracy, repeatability, stress, lifetime, and reliability testing.
- Conduct DFMEA/FMEA, safety analysis, and risk assessments.
- Support DFM, manufacturing test automation, and field issue resolution.
- Prepare electrical drawings, BOMs, test procedures, and qualification reports.
Education / Experience / Languages:
Required
- Bachelor's or Master's degree in Electrical, Electronics, Mechatronics, or Instrumentation Engineering
- 7-12 years of experience in electrical systems, controls, and sensor engineering for industrial or semiconductor equipments
- Strong experience in PCBA design, analog/digital circuits, and sensor signal conditioning
- Handson PLC programming and system commissioning experience
- Solid understanding of sensor calibration, drift, and longterm stability
- Experience with test setups, validation systems, and data analysis
Preferred
- Experience with HMI design and industrial communication protocols (Modbus, Ethernet/IP, CAN, RS485)
- Exposure to embedded microcontrollers and firmwaresensor interfaces
- Familiarity with UHP gas components (MFCs, valves, regulators)
- Knowledge of SEMI standards (S2, F19, F57) and cleanroom requirements
- Experience with data logging, LabVIEW or Python scripting
- Ability to mentor junior engineers and lead crossfunctional R&D programs
