Automated
inspection using state-of-the-art camera and software technologies significantly
increases high-quality yield and reduces manufacturing cost in photovoltaic
production. Especially electroluminescence (EL) inspection opens up new
dimensions to detect damages that are invisible to the human eye. ISRA SOLAR
VISION, a worldwide leading supplier of affordable state-of-the-art inspection
systems, presents a new generation EL inspection for solar modules. The groundbreaking
technology provides the industry’s fastest electroluminescence inspection with the
most accurate defect classification resulting in the lowest false detection and
false downgrading rates. Solar manufacturers benefit from the application of
the new SOLARSCAN-YIELDMASTER EL inspection through a reduced production of
defective or underperforming cells and modules. This leads to a three percent
increase in maximum-quality yield and remarkable cost savings through less
material loss. This way, the innovative inspection technologies support the PV
industry in fully exploiting all cost-saving and efficiency-raising potentials.
ISRA SOLAR VISION’s
new generation of high-speed in-line YIELDMASTER EL-Module inspection systems is
able to detect and classify a large spectrum of attributes including visible
and invisible cracks, shunts, dark and in-active cells, scratches, broken
pieces,
pollution, material defects and soldering
defects on solar modules. In addition, the system provides the characterization
of cells and modules in industrial mass production with unrivaled detection
rates and repeatability. Solar module manufacturer benefit from this revolutionary
technology as it allows the highest reliable distinction between material
defects such as dislocations, changes in the material, foreign objects, and
process defects (cracks, finger interruptions, low efficiency regions, mechanically
broken cells, soldering and contact issues, low efficiency cells etc.).
Making
the Invisible Visible at Highest Inspection Speeds
One of the most remarkable improvements of YIELDMASTER
EL inspection is the industry’s fastest image processing. Conventional EL systems
require long cycle times for image capture and analysis. For the new EL method ISRA SOLAR VISION managed to
reduce the imaging time by a factor of eight. The inspection system boosts image acquisition and
calculation to an overall triple inspection speed and by that offers the
fastest EL inspection systems for solar modules.
Most accurate Defect
Classification for a 3% Increase of A-Grade Yield
Another quantum leap
in electroluminescence inspection is the industry’s highest measurement
accuracy that decreases the false detection rate by a factor of more than six,
down to under 0.5 percent. Due to poor
detection rates, EL systems that are currently available on the market waste
too much material. However, SOLARSCAN-YIELDMASTER EL-Module discriminates electrical
defects from non-critical optical effects resulting in significantly less false
downgrading of immaculate solar modules. This way, the new inspection
technology.
enables solar module manufacturers to boost
A-grade yield by up to three percent. This revolutionary innovation opens up
new dimensions to increase production efficiency in terms of reduced
manufacturing costs and enhanced product quality. The return on investment can
be achieved within less than three months.
Inspection
at Highest Speed and Accuracy for Best Quality Si Solar Module Production
The modular architecture of the new electroluminescence
system allows the integration into new or existing production lines and
fulfills varying inspection requirements for solar cells. Overall YIELDMASTER
EL Module inspection increases the yield of A-grade modules by three percent
and improves overall yield through triple inspection speed. At the same time material
loss is reduced by a factor of six. Thus automated electroluminescence inspection
with ISRA SOLAR VISION technologies leads to significant cost savings, increased
productivity and eventually to higher customer satisfaction. This way, YIELDMASTER
EL Module inspection enables solar manufacturers to achieve higher quality products,
lower production losses and altogether results in an increased efficiency in Si
solar module production.
