Texturing and Etching

To increase the surface area of a solar cell or to create trenches in MEMS device, alkaline etching using KOH (potassium hydroxide) and KOH/IPA are commonly used. For solar processing, controlled sizes of pyramids and uniform process of mono-crystalline silicon are necessary for increased efficiency. Smooth surfaces for MEMS are required for functional devices.

Learn more about:  HF/HNO3 alkaline texturing of multi-crystalline Si and controlled etch rate and uniformity.

Read our White Paper on KOH Etching Applications.