When liquid enters a powered smartphone, mineral salts and electrolysis instantly initiate corrosion across microscopic board components. Simply drying the device or submerging it in rice leaves salt deposits that continue oxidizing copper traces.
Here is how industrial 40kHz ultrasonic cavitation strips away deep sub-component corrosion to restore dead devices for full data recovery.
The Physics of Micro-Cavitation
Ultrasonic transducers convert electrical energy into high-frequency sound waves transmitted through a specialized cleaning bath:
- High-frequency acoustic waves create alternating high-pressure and low-pressure cycles.
- Low-pressure cycles form microscopic vacuum bubbles in the fluid.
- High-pressure cycles cause these bubbles to collapse violently (**cavitation**), generating localized temperatures of ~5,000K and micro-jets of fluid that blast away corrosion scale.
Ultrasonic cavitation reaches microscopic crevices beneath shield cans and BGA underfill that no brush or manual wipe can ever touch.
Chemical Bath Protocol
Never use plain water in an ultrasonic bath. AGNISIO utilizes a multi-stage process:
- **Stage 1 (Solvent Cavitation):** 40kHz bath with specialized PCB solvent cleaner heated to 50°C for 6 minutes.
- **Stage 2 (Anhydrous IPA Rinse):** 99.9% Isopropyl Alcohol displacement rinse to absorb all remaining water molecules.
- **Stage 3 (Vacuum Dehydration):** 4-hour thermal vacuum oven cycle at 65°C / -0.09 MPa to evaporate any trapped moisture beneath IC packages.
Summary Result
This scientific decontamination procedure restores short-circuited rails, allowing the phone to power on safely for complete data extraction.