Polycrystalline silicon ingots

For lumpy polycrystalline silicon the sizes of pieces: less than 3 mm and 3- 125 mm .

We offer polycrystalline silicon with highest purity that used in microelectronics and solar industries Shape of polycrystalline silicon: rod or lumpy. For lumpy polycrystalline silicon the sizes of pieces: less than 3 mm and 3- 125 mm . The typical size of pieces: 65- 125 mm . Cleanliness of a surface: absence on a surface of cores and pieces of policrystalline silicon of traces of the oxides, the oxides rings of growth in a break or on a cut, and also other foreign impurities and pullution. Specs

DirtConcentration

type I

type II



Acceptors (Boron) < 0. 1 ppba < 1. 0 ppba



Donors (Phosphorus)

< 0. 5 ppba

< 2. 0 ppba



Carbon < 0. 1 ppba

< 1. 0 ppba