Neolectum - Cell efficiency, wafers, infrared emitters - Photovoltaic (PV) industry - thin films, wind turbines

Valencia - September 2008

23rd European Photovoltaic Solar Energy Conference and Exhibition • Exhibitors' news

All products and/or services are new for 2008, already availble or to be launched in the following weeks.

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4JET – Laser – Systeme – Services

EDS 70XX Laser Edge Deletion System
4JET is introducing its new generation of inline-laser systems for thinfilm edge deletion. The machines are suitable to process a-Si, CIS, CIGS and Cd:Te solar panels. The highly flexible machines allow the processing of substrate edges for removal of TCO materials, semiconductors and metal backcontacts. The touchless laser process lifts off the coating without damaging the glass material. The residues created are evacuated by the integrated filter system.
4JET has already secured orders for several of these machines, that also allow to perform code marking and perforation for BIPV “see through” cells over the entire surface area of the solar panel. 4JET offers additional processing modules for mechanical molybdenum exposure for CIGS/CIS bus bar preparation, edge brushing and material handling.

4JET supplies turnkey laser systems for laser edge deletion, perforation and marking of thinfilm solar cells to leading global PV companies.

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acp-IT

acp-IT Simulation Services
Motivation: Optimize production capacity • Meet the future requirements of growing PV industry • Use simulation for efficient manufacturing line planning
Our Solution: acp-IT has developed a specific PV library in AnyLogic™ shortening time and reducing effort in order to create a factory simulation model
Your Benefits: Understand problems (bottlenecks) of PV production processes • Decision support for business case studies • Capacity planning for substrate supply • Optimized asset planning
acp-IT InFrame Syn@pse MES
Motivation: Tracking and tracing material in production (WIP) • Enable continuous improvement in production efficiency • Monitor and visualize utilization of production resources
Our Solution: Full monitoring and control of your production with InFrame Syn@pse MES • Your future production needs will be easy adapted by our workflow engine • Fast integration into your existing environment using SOA
Your Benefits: On-line visualization of your production line(s) • Quickly interact with the production floor • Immediately react properly on issues • Monitoring and analyzing process data • Identifying potential for yield improvement and cycle time reduction

From IT support during fab planning, providing production with the necessary master data from engineering, up to daily operational business - acp-IT offers the right IT solutions for production planning and control. Selection and implementation of MES, control centers for highly automated production facilities, planning and simulation systems of the Digital Fab as well as engineering applications for managing product data are the focus of our portfolio.
acp-IT addresses the sectors of photovoltaics, semiconductor and automotive as well as manufacturing companies with highly automated production lines and great product variety. Target sectors: Semiconductor, Photovoltaic, Automotive, Descrete Technology Manufacturing
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Alfasolar Vertriebsgesellschaft mbH

alfasolar pyramid
alfasolar is the first solar module manufacturer to introduce the new textured glass technology
Early on, we recognized the potential of manipulating optical properties to decrease the losses resulting from unwanted reflection, while increasing transmission.  Multi-faceted measures have already been implemented to achieve this goal
These include, among others:

• Applying an anti-reflective coating to solar cells to reduce the refractive index and partial reflections
• Using high-quality glass with high degree of transmission in module production
• Applying microporous layers to the surface of the glass either by etching the glass or by epitaxy/depositing
• Using textured glass

The glass used by alfasolar is called “extra-white”, as it has an especially low iron content in comparison with conventional silicate glasses, which allows it to transmit excellently the band of the spectrum that is so important to solar cells, i.e. the wave-lengths starting with visible light, just below the ultraviolet band.  The biased single-pane safety glass keeps the high degree of transmission constant far beyond the band limit of silicon. With the new "Pyramid"-series we introduce an exclusive product design, that offers only advantages

• Higher energy yield, up to 5%
• Module efficiency up to 14,7%
• Tolerance -1 / +1,5 %
• The glass can be processed without finger marks or other special treatment
• Our standard glass caused only a power loss of 0,2 %
• The glass obtains an achievement gain of approx. 3,5 % (perpendicular irradiance) and 20 % (oblique irradiance of 80°) in comparison to our previous default module
• Tension and filling factor remain almost the same, more radiation reaches the solar cells
• Self-cleaning effect

alfasolar was created in 1993 and is manufacturer of high-quality solar modules and mounting systems and as well a wholesale for fotovoltaic components.
A special mark of our modules is the high quality. This is proofed by the use of european high-performance cells, which have a efficiency of 16,3% . Further we use 4 mm thick glass and the new pyramid structure. The innovative frame profile ensures a perfect stability and contains a sloping edge towards the glass, so that dirt maturing is reduced significantly. Certifications according to ISO 9001:2000, ISO 14001:2004 TÜV Rheinland and the modules are certified according to IEC 61215 and Safety Class II

 

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Cyberstar

Si PV furnaces
Cyberstar is now offering a full range of crystallization furnaces for making Si PV grade polycrystalline blocks.
Three furnaces of various capability are available :
- 60 kg capability for R&D;
- 250 kg capability for production.
- 480 kg capability for mass production.
A 1000 kg furnace is in the course of development.

Cyberstar manufactures and markets equipments or building elements for : raw materials synthesis, crystal growth (Czochralski, EFG, Kyropoulos, Bridgman, Micro-Pulling Down and melting zone), crystal annealing and substrate epitaxy. Crystal Growth equipment and furnaces : 90% • Radiation detectors and electronics : 10%.

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EdgeWave GmbH

INNOSLAB lasers with tailored beam profile
The new BX-series INNOSLAB lasers are highly flexible in beam profile, from circular beam profile, through line shaped one dimensional Top-Hat, to two dimensional Top-Hat with square cross section, together with the outstanding features of the INNOSLAB design: beam quality M2 < 2, pulse repetition rate (up to 100 kHz), pulse length 8ns. The new INNOSLAB lasers with square top-hat beam profile are ideal choice for scribing and structuring in production of photovoltaic.
The new BX-series INNOSLAB lasers with high average power and with circular beam profile are well suited for precision machining micro features in all types of materials. Their short pulse length results in a minimal heat-affected zone. Typical applications are drilling of solar glass for contact wrap thru.
The new BX-series INNOSLAB lasers line shaped Top-hat profile are the ideal sources for large area ablation of thin layers for example in photovoltaic and in car industry and for annealing to generate thin micro crystalline layers in display industry.
The new BX-series INNOSLAB lasers with square Top-Hat beam profile are especially favourable for structuring and ablation of conduction layers or dielectric layers for production of thin film solar cells, crystalline solar cells and flat display panels, etc. Their Top-Hat beam profile and short pulse length guarantee homogeneous ablation without beam overlap, highly efficient use of pulse energy and low thermal damage of substrates. The average power of the model BX-series amounts 40W.

EdgeWave is a highly innovative provider of high-end laser solutions. The range of services offered by EdgeWave includes the development and manufacture of solid-state lasers. The parameter range of its standard products is in the following:
beam quality M2 < 2 • pulse energy up to 60mJ • pulse length down to 4ns • pulse rep. rate up to 150 kHz • average power up to 600W • line, square or circular shaped Gaussian or Top-hat beam profiles
Main applications
ablation, structuring and scribing of conduction or dielectric layer • drilling and cutting of metal, ceramic and glass

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G&N Nürnberg GmbH

Surface & Chamfer Polish-grinder, PV series, PV-300 & PV-1000
Using the latest addition to our grinding technology range, the new PV series, PV-300 (for multi) - PV-1000 (for mono), monocystalline ingots up to 1.000mm in Length can be processed in half time. The simultaneous operation of four grinding disks reduces cycle time, resulting in a quicker amortization of the investment. We have made a new concept of intelligent grinding stroke that allows taking off only the needed material on the ingot/brick.
The same grinding technology is also used on multicrystalline silicon components, producing goods of the same outstanding quality. The PV series can be incorporated into fully automated processing cells either manually or by using robotic systems.
Advantages:

• Reduction of cycle time by new grinding concept (simultaneous grinding of two surfaces and two chamfers)
• Reduction of Wafer breakage by wafering
• Mirror-like surface by using TWIN®-Spindle
• Less electrical power consumption
• Less space needed
• No handling between surface and chamfer grinding step
• Intelligent grinding concept, saving material
• Fast return of Invest (in only five month)

TWIN®-Spindle
This kind of Spindle is an own patent made technology tool which works with two grinding disks placed on one Spindle. One rough and one fine disk are taking of the material in a simultaneous way. The half with reduces the electrical consumption only using two spindles instead of four. The fine grinding disks reaches a perfect surface quality of Ra 0.03 microns.

Since taking over GMN Nürnberg at the start of the silicon age, G&N GmbH has been developing plants to meet the specific needs of customers in the semiconductor and PV sectors.
The plants we design fort he solar market serve to improve the quality of mono and multicrystalline silicon components (ingots/bricks). Our polish-grind process has reduced wafer breakages by more than half since 1986. G&N delivers outstanding performance in the fields of technology, development, and the installation and service of fully automated machinery for our customers throughout the world.

 

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