Fernando Vasquez Mesa

Level 3 Board-Level Repair & Failure Analysis Technician
Electronics Hospital LLC — Norcross, GA | 2023 – Present

• Performed root cause analysis on smartphones and embedded hardware to isolate component-level failures.
• Conducted power rail tracing, short detection, and signal path verification on multilayer PCBs.
• Executed BGA, QFN, and PMIC reballing and replacement using microscope and controlled rework stations.
• Diagnosed I²C, SPI, UART, and USB data line failures using reference schematics and signal probing.
• Evaluated current draw and thermal profiles using DC bench power supply and infrared/thermal measurement.
• Documented repair findings and corrective actions following RMA / QA laboratory standards.
• Maintained ESD-safe bench environment, calibration standards, and quality control traceability.
• Diagnosed and repaired electronic medical equipment to ensure optimal functionality.

• Diagnosed board-level faults involving damaged PMICs, baseband circuits, charging controllers, and display drivers.
• Replaced QFN, PMIC, and SMD components using micro-soldering and precision rework equipment.
• Identified intermittent shorts and open circuits through line tracing and thermal imaging analysis.
• Performed functional validation and post-repair calibration before reintegration.
• Operated within controlled bench workflow, quality documentation, and return evaluation procedures.

• Conducted failure isolation on logic boards, flex assemblies, and power distribution circuits.
• Performed microscope-assisted micro-soldering on filters, drivers, PMICs, and interface modules.
• Restored broken pads and PCB traces using micro jumpers and trace reconstruction techniques.
• Completed post-repair validation, ensuring stable function and thermal behavior.
• Trained junior technicians on diagnostic methodology and rework workflow discipline.