cSI PHOTOVOLTAIC SOLUTIONS - Manz

METALLIZATION
SOLUTIONS
Metallization – printing a conductive layer onto cells – is an important process in the
manufacture of crystalline solar cells.
In this area, Manz offers both high-output printing systems as individual modules,
as well as a complete back-end line with a throughput of 2,400 cells per hour in a
single production line.
Manz also has the right solutions for new, advanced processes (selective emit-
ters, for example). The HAP (High Accuracy Printing) 2400 system is required for
double printing or printing on selective emitter structures. The system recognizes
pre-processed patterns such as a print or a selective emitter structure and prints
aligned auto-matically on this structure with a precision of +/- 10 µm.
The Manz Aerosol Printer uses an aerosol deposition procedure that allows me-
tallic front contacts to be applied without ever coming into contact with the cell.
Eliminating the use of the printing screen has additional benefits: besides cut-
ting costs (manufacturing, cleaning, and preproduction costs), it is a contact-free
procedure, which leads to a significant reduction in breakage rates.
High Accuracy Printer (HAP) 2400 High Accuracy Printer (HAP) 1200
INLINE SCREEN PRINTING SYSTEM
High throughput: up to 2,400 cells/h
Loading module with integrated micro-crack inspection
High-accuracy cell placement on printing conveyor
Parallel cell screen printing system for enlarged process window and
fastest cycle time
Easy maintenance on screen printing parts (quick change system for
screen and squeegee)
Excellent accessibility of screen printing parts
Very safe wafer handling – lowest breakage rate
Vision system for print control and closed loop feedback function
Fully integrated horizontal drying furnace
Statistical process data collection for continuous production optimization
MES interface (optional)
HIGH ACCURACY PRINTING / HAP 2400
Your advantages of the high accuray printing process:
Single cell high accuracy screen printing system
High throughput: up to 2,400 cells/h
High precision vision system for wafer alignment
High precision vision system for recognition of pre-processed
structures on wafer
AEROSOL PRINTING
Advanced printing process for front-side metallization of solar cells
High throughput: up to 2,400 cells/h
Direct writing process: no screen cost
Non-contact printing: no breakage, possibility to handle thinner wafers
Less shadowing: increased cell efficiency up to 0.5%
High throughput up to 2,400 wafers/h
Less material consumption
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Parallel screen printing
for fastest cycle time
Very safe wafer handling
Highest accuracy in
screen printing process
No contact printing: no breakage,
handling of thinner wafers possible