By Ultrasonic Systems Inc. (USI)
Supplier Info
Product Type:
Equipment
Application:
Deposition
Product Description:
The PV-360 is a high-volume, in-line spray doping system for the thin and uniform application of phosphoric and boric acid based dopants to crystalline photovoltaic cells for the in-line thermal diffusion and laser doped selective emitter processes. Now in its 3rd generation, the PV-360 leverages USI’s patented, nozzle-less ultra-spray technology for a more uniform, thinner coating compared to conventional nozzle based spray, roll coating or fog coating technologies.
- Proprietary, nozzle-less ultrasonic spray head technology
- Typical coatings applied include:
- phosphoric acid based dopants
- boric acid based dopants
- compatible with water based and solvent based dopants
- Non-contact coating application with excellent coating transfer efficiency – up to 99%
- Process width: 914mm (36 inches)
- Compatible with any in-line thermal diffusion furnace
- Long-life, high speed traversing mechanism with servo motor drive
- Constructed with materials compatible with acidic and caustic coating liquids
- Isolated and ventilated spray area
- PAC controller with touchscreen HMI
- PMP-200 Precision Metering Pump liquid delivery system, features:
- Servo drive positive displacement liquid metering pump
- Dual pump design for uninterrupted operation
- Automatic pump refill from on-board PFA coating reservoir
- Data logging
- Conveyor system:
- Teflon coated Kevlar mesh belt
- Up to 1.8 meters/minute (5.9 feet/minute) speed
- Accommodates up to six (6) rows of 125mm (5 inch) wafers
- Integrated water-based conveyor belt cleaning and drying system
- Water-based conveyor belt cleaning system
Optional wafer drying system
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Crystalline photovoltaic cells