Wet chemical etching is an integral part of semiconductor manufacturing process. KMG’s line of buffered oxide etchants offers a variety of silicon dioxide etching rates and characteristics to meet your processing needs. The family includes standard BOEs, Ultra Etch® surfactanated BOEs, Ultra Etch® LFE (low fluoride etchants) and custom blends. 4 x 1-Gallon Poly Bottles/Case. KMG Item#: 041231.