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Alkaline Texturing

Alkaline Texturing

Alkaline Texturing

Product catalog summary
Overview of Alkaline Texturing Inline System
The Alkaline Texturing Inline System by SCHMID is designed for efficient texturing of mono-crystalline wafers, ensuring a homogeneous pyramid structure. This system is notable for its IPA-free process, long bath life, and smooth transport system, which accommodates all common wafer sizes.
Key Benefits
  • Gentle, damage-free inline transport of wafers.
  • Uniform pyramid structure due to consistent process conditions.
  • IPA-free process with automatic dosing and bath monitoring.
  • Extended bath life capable of processing up to 1 million wafers.
  • Easy access for service and maintenance.
Process Description
Alkaline texturing is applied to mono-crystalline wafers to remove contamination and damage from the sawing process. The resulting pyramid-shaped surface reduces reflection, enhancing cell efficiency. SCHMID's system achieves reflection values below 12% and uses a gentle sprinkling device for wafer irrigation. The continuous exchange of the etching medium ensures short process times.
Control and Maintenance
The system features automatic dosing and bath monitoring, allowing operators full control over the process. The low-noise dryer module, Dry Jet, ensures uniformly dried wafers. Maintenance is simplified with easily accessible components and a transport system that eliminates run marks.
Technical Specifications
  • Throughput: 2,200 wafers/h (5 tracks) or 6,600 wafers/h (10 tracks), with configurable options.
  • Wafer size: 156 – 161.7 mm.
  • Breakage rate: < 0.1%.
  • Process media: KOH and additives.
  • Optional features: Loader and Unloader, integrated pre-cleaning, and rearside polishing.
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Catalog excerpts

Alkaline Texturing-1

Efficient texturing of mono-crystalline wafers The Alkaline Texturing Inline System of SCHMID ensures the most efficient texturing of mono-crystalline wafers. The IPA-free process, the long bath life and the smooth transport system suitable for all common wafer sizes guarantee a stable production. Uniform process conditions for all wafers ensure an incomparably homogeneous pyramid structure. Expect Solutions

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Alkaline Texturing-2

Expect Solutions Technical Data Throughput: ■ 2,200 wafers/h (5 tracks) ■ 6,600 wafers/h (10 tracks) ■ Further throughputs configurable Wafer size: ■ 156 - 161,7 mm Breakage rate: ■ < 0,1 % Process media: ■ KOH ■ Additives Optional: ■ Loader and Unloader ■ Integrated pre-cleaning ■ Integrated rearside polishing Details Alkaline texturing is applied with mono-crystalline wafers. It removes the contamination and damage caused by the sawing process. The uniform, pyramidshaped surface reduces the reflection and thus decisively influences the cell efficiency. SCHMID's Alkaline Texturing Inline Sytem...

 Open the catalog to page 2

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.