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Singulus to outline key steps for CIGS solar panel production

The firm is also looking into large-scale implementable production processes for CIGS solar cell development
Production capacities for CIS/CIGS based cells is anticipated to rise in the coming years.

Based on the CIGS processes, Singulus Technologies (Singulus) can provide customers with its extensive know-how to reduce production costs. The firm also works with its customers to increase cell performance and enhance cell output.

For the development of CIGS solar cells with a substrate size of 300 x 300 mm, Singulus is now offering a modular cluster type tool, the CISARIS. With this machine, innovative and large-scale implementable production processes for CIGS solar cells can be developed targeting new process combinations. Many research and development areas demand such cost-efficient development tools.

CISARIS Rapid Thermal Processing

The company's CISARIS rapid thermal processing oven is designed for the CIGSSe absorber formation on large area glass substrates. The process can safely handle the thermal processing of large glass substrates of over 1 square metre at temperatures up to 600 °C under a toxic and corrosive gas atmosphere.

High heating and cooling rates, combined with an excellent temperature and gas homogeneity during all process stages are the key factors which allow the formation of an optimal CIGSSe absorber required for the production of high efficiency solar modules.

CISARIS consists of a handling station, a vacuum tight process section, and a return conveyor and is optimised for the mass production of CIS solar modules., CISARIS provides a production capacity of over 25 MWp per year

Sputtering Systems

Singulus is also offering new processing systems for vacuum coating CIGS thin-film solar cells. The systems respond to the demand in the photovoltaic industry for development and production tools that enhance the efficiency of thin-film solar cells, while cutting production costs.

For PV technology, Singulus develops and manufactures coating systems which can apply special layers and layer systems on different materials. Inline sputter systems are significant in today’s thin-film solar cell production.

New Generation of Wet Process Equipment for Economic Processing of CdS/Alternative Buffer Layer for CIGS Solar Cells

Singulus has also made a promising new development to the efficient wet-chemical coating of thin-film solar modules made of copper-indium-gallium-diselenide (CIGS) on glass: the second generation of the TENUIS production which has a modular cluster build enables both significant savings in terms of required floor space and the simultaneous one-side coating of two substrates.

Singulus offers wet processing systems from R&D over pilot use to full production range 60, 120, 180 and more MW.

Due to new and unique concepts in terms of dosing and temperature control, Singulus` developers were successful in reducing the process time by up to 20 percent, which has a positive effect and a considerably higher output in production.

Inline Wet Process Equipment, Etching, Cleaning & Single Side Coating for Thin-Film Solar Cells

The modular design of the Singulus inline wet process equipment VITRUM II allows the easy integration of different process steps according to the requirements of CIGS, a-Si or CdTe technology (etching, rear side and substrate edge etching, cleaning, and single side coating).

The design of the VITRUM II features similar piping for all liquid circuits and generously dimensioned installation compartments for optimised maintenance work.

The second generation VITRUM enables homogeneous, reliable and reproducible etching. It features further advantages in comparison to a dipping bath, such as a higher etch length and concentration, a higher process speed of up to 5 m/min, and minimized carryover.

The design of the VITRUM GEN 2 improves the accessibility for optimized maintenance work in a large installation cabinet. Piping is similar for all liquid circuits. It offers a high cycle rate and is also easy to integrate into existing production lines.

Connecting the Compound Semiconductor Industry

The 13th CS International conference builds on the strengths of its predecessors, with around 40 leaders from industry and academia delivering presentations that fall within five key themes: Ultrafast Communication; Making Headway with the MicroLED; Taking the Power from Silicon, New Vectors for the VCSEL, and Ultra-wide Bandgap Devices.

Delegates attending these sessions will gain insight into device technology, find out about the current status and the roadmap for the compound semiconductor industry, and discover the latest advances in tools and processes that will drive up fab yields and throughputs.

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