| 品牌：Sinton WCT120 |
Suns-Voc 鈥� Post-Diffusion Process Control
Perfect for paste-fring optimization and process control.
Open-circuit method indicates the upper bound for any solar cell
precursors after junction formation.
Product Overview
The Suns-Voc stage is ideal for measuring wafers
after Al fring, and then again after front-grid
fring. This allows the optimization and monitoring of these steps to maintain voltage, obtain
good ohmic contacts, and avoid shunting.
Suns-Voc Applications
By either probing the p+ and n+ regions
directly or probing the metallization layer (if
present), the illumination-Voc curve can be
measured. This curve can be displayed as our
well-known Suns-Voc plot or in the form of a
standard photovoltaic curve which can be used
to characterize shunting. The entire curve is
measured at open circuit, so it is free from the
e铿�ects of series resistance.
Comparing this curve to the fnal I-V curve
gives a precise measure of the series resistance
in the cell.
Suns-Voc System Features
鈥� Wafer stage controlled at 25掳C
鈥� Fine-point voltage probe
鈥� Magnetic-probe compatibility
鈥� Xenon 铿俛shlamp with set of neutral-density
flters
鈥� Height-adjustable back column for fnetuning intensity range
鈥� Displays standard I-V curve format as well as
the Suns-Voc curve
鈥� Measures ideal wafer characteristics without
the e铿�ects of series resistance
Suns-Voc Specifcations______________________________
Instrument Specifcations
Suns-Voc 鈥� Post-Di铿�usion Process Control Product Note
For a quote, please contact
quotes@sintoninstruments.com.
We are happy to accommodate custom requirements. Please inquire about a quote for your
specifc needs.
Parameters reported for each measurement
鈥� Implied I-V curve at open circuit:
materials limit to efciency
鈥� Pseudo-efciency
鈥� Pseudo-fll-factor
鈥� Two-diode analysis
鈥� Shunt value
Typical calibrated illumination range
鈥� 0.006鈥�6 suns
Wafer size, standard confguration
鈥� Maximum 210-mm diameter/side
Warranty
鈥� One-year limited warranty on all parts and
software
鈥� Service agreement also available
Facility Requirements
Chuck temperature control
鈥� 25掳C
Ambient operating temperature
鈥� 18掳C鈥�25掳C
Power requirements
鈥� Computer with monitor: 200 W
鈥� Light source: 60 W
Dimensions
鈥� 32 cm W x 28.5 cm D x 75 cm H
Universal mains voltage
鈥� 100鈥�240 VAC 50/60 Hz
Special facilities requirements
None
Purchasing Information
Suns-Voc Specifcations
Facility Requirements
Quotes are valid for 60 days. Please allow 10
weeks for delivery from date of purchase order.
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