VEERAVEL PAKIRISAMY
Thiruvarur
Summary
Dynamic Senior Engineer with extensive experience at Emmvee Photovoltaic Power Limited, excelling in equipment installation and process optimization. Proven expertise in PLC programming and root cause analysis, enhancing operational efficiency. Adept at leading cross-functional teams, ensuring seamless project execution, and driving continuous improvement in manufacturing processes.
Overview
13
13
years of professional experience
1
1
Certification
Work History
Senior Engineer – Cell Maintenance
Emmvee photovoltaic power limited
07.2024 - Current
- Project Lead – Equipment Installation and Cell Fab Support.
- Led end-to-end activities for equipment loading/unloading, and installation of wet benches, thermal furnaces, and Printline tools.
- Supported cell fab infrastructure setup, including ceiling panel installation, FFUs, and cleanroom utilities.
- Coordinated facility integration for power distribution, CDA, exhaust, DI/RO systems, gas and chemical yard, drain systems, ZLD, and utility cable routing.
- Oversaw equipment commissioning, process optimization, and ramp-up to ensure a smooth production handover.
- Texture to Sorter – Equipment Maintenance and Process Control (TOPCon Technology)
- Performed preventive and predictive maintenance for all key tools, reducing downtime and improving MTBF.
- Troubleshot breakdowns across wet benches, PECVD, ALD, furnaces, and automation systems, ensuring fast recovery.
- Maintained wet process tools (Rena) for texture, etch, a-Si, and BSG removal using KOH, HF, HNO3, and HCl; monitored chemical life and DI water parameters.
- Handled diffusion (Centrotherm) with BCl3, O2, and N2; performed tube cleaning, source refilling, and gas line leak checks.
- Operated Tunnel Oxide and Poly-Si PECVD using SiH4, PH3, and Ar, optimizing doping quality and interfacial passivation.
- Managed ALD (Al2O3) systems with TMA and H2O, including chamber cleaning, precursor refill, and thickness calibration.
- Controlled post-annealing furnaces stress relief of poly/tunnel stacks.
- Maintained PECVD (SiNx:H) using SiH4 and NH3; performed plasma tuning, electrode cleaning, and pump maintenance.
- Calibrated Maxwell printers, IR dryers, and firing furnaces; ensured stencil alignment, belt speed tuning, and curing quality of Ag/Al paste.
- Operated and maintained HALM IV Testers & Cell Sorters for electrical testing (Voc, Isc, FF, η), MES-linked binning, and suction calibration.
- Conducted LECO (Laser Enhanced Contact Optimization) to improve metal-semiconductor contact without damaging passivation.
- Ensured safe exhaust management via GNBS scrubbers for toxic gases (PH3, TMA, BCl3); monitored pH, and EHS compliance logs.
- Documented all maintenance activities, spare usage, and equipment history.
Service Engineer – Automation
Suzhou Maxwell Technologies Ltd.
China
08.2023 - 06.2024
- Client: Adani Solar – 4GW PERC Project | Trained in China, Deployed on Site
- Completed technical training at Suzhou Maxwell Technologies, China on PVD& CVD automations.
- Deployed to Adani Solar, Gujarat for installation and commissioning of Screen Printers, Dryers, and Firing Furnaces.
- Configured PLCs, HMIs, VFDs, sensors, and I/O modules for print line automation.
- Integrated equipment with MES and ABB robotics, conducted interlock checks, and supported SAT/FAT activities.
- Provided technical support during line ramp-up, ensuring smooth equipment operation and process stability.
Technical Support – Lead
Barra Systems Pvt. Ltd.
11.2014 - 08.2023
- Company Overview: Jetinks
- Provided technical support for various kiosk and printing systems (CIJ, TIJ, DOD, Laser, Handheld).
- Performed preventive maintenance and troubleshooting to reduce downtime.
- Supported process engineering documentation and inventory control.
- Conducted customer training and ensured service satisfaction.
- (Jetinks)
Assistant Engineer
Alstom T&D India Ltd.
07.2012 - 10.2014
- Assembled and tested electrical reset relays (220V) and disconnector switches (up to 1200KV).
- Conducted electrical testing using JIG testers and other diagnostic tools.
- Worked on CMM panels and versatile relay testing procedures.
Education
B.Tech. - Electrical & Electronics Engineering
SRM Institute of Science & Technology
Chennai01.2018
Diploma - Electrical & Electronics Engineering
Meenakshi Krishnan Polytechnic College
Chennai01.2011
Skills
- HMI and SCADA systems
- PLC programming
- Variable frequency drives (VFDs)
- Sensor technologies
- MES systems and industrial IoT
- ABB robotics integration
- Root cause analysis
- Computerized maintenance management systems (CMMS)
- IT hardware management
- SAP basics and MS Excel proficiency
- Power BI and networking tools
- Process support and testing
- Shift handling and operations
Languages
Tamil, English, Kannada, Hindi
Projects
Power Grid Corporation of India Ltd. (PGCIL), Raipur, Bareilly, Vietnam, Successfully, Installed India's first 1200KV Disconnector Switch (FAT Area) Solar Cell Line Project., Successfully completed solar cell line project from installation to ramp-up optimization in TOPCon technology.
Accomplishments
- Recognized by Emmvee Management for completing Cell Fab project ahead of schedule.
- Awarded 'Best Performer' at Jetinks for completing 500 kiosk modules before deadline.
- Appreciated for improving customer satisfaction through technical support excellence.
Certification
- AGV Routing
- Safety & Compliance
- Pcs certifier
Timeline
Senior Engineer – Cell Maintenance
Emmvee photovoltaic power limited
07.2024 - Current
Service Engineer – Automation
Suzhou Maxwell Technologies Ltd.
08.2023 - 06.2024
Technical Support – Lead
Barra Systems Pvt. Ltd.
11.2014 - 08.2023
Assistant Engineer
Alstom T&D India Ltd.
07.2012 - 10.2014
B.Tech. - Electrical & Electronics Engineering
SRM Institute of Science & Technology
Diploma - Electrical & Electronics Engineering
Meenakshi Krishnan Polytechnic College
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