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Structuring Solutions for economical and environmentally-
friendly processes for solar cell and display fabrication |
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SolarEtch™ for PV Applications (SiO2, SiNx and Si Etching)
HiperEtch™ for Display Applications (ITO, IZO, Ag, AI Etching)
Screen Printable, Ink Jettable and Dispensible Etchants
These novel screen printable etching pastes enable large-scale production
using off-the-shelf equipment in an efficient and environmentally-friendly
way. Under the brand isishape™ Structuring Solutions, Merck KGaA
has developed several paste types that are able to etch through various
passivation layers selectively to create anti-reflection coatings or
vias for solar cell fabrication. In addition, screen printable pastes
for etching ITO and other transparent conductors for touch panel and
electroluminescent lamp applications are available. Dispensible
formulations have also been developed for etching silicon and
transparent conductive materials. And, recently, an ink-jettable
formulation has been developed for ITO removal.
With standard screen printing methods, high yields and high efficiency
are readily achievable. In comparison to other removal techniques, such
as Laser Ablation, Photolithography/Etch Resist and Plasma Etching,
the Screen Printing of etching pastes is a high throughput process.
Moreover, it can provide lower capital equipment costs and lower total
cost of ownership relative to these other techniques.
The following isishape™ SolarEtch™ and HiperEtch™ products are commercially available.
- for your screen printing process:
SolarEtch™ BES - for SiO2, SiNx
SolarEtch™ BRS - for low temperature SiO2, SiNx etching
SolarEtch™ SiS - for silicon etching
HiperEtch™ O4S - for ITO on glass
HiperEtch™ O9S - for ITO on plastic (polyester)
HiperEtch™ O6S - for AI etching
- for your dispensing process:
SolarEtch™ SiD - for silicon
HiperEtch™ 01D - for ITO removal
Other formulations for selective etching of oxide or metallic thin films and
for other printing techniques are
available upon request.
Choose EMD as your partner for advanced materials and their application in photovoltaic and display
manufacturing. EMD will develop new products according to your specific requirements in close cooperation
with you.
For more detailed information on key benefits, properties, processing guidelines, paste removal,
package sizes and safety data, please contact us.
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