Quality
Donor impurity concentration 0.68ppba max, acceptor impurity concentration 0.26ppba max, carbon concentration 0.4ppma max, oxygen concentration 1.0ppma max, Fe, Cr, Ni, Cu, Zn, NaBulk metal impurity concentration 15ppbw max, Fe, Cr, Ni, Cu, Zn, Al, K, Na, Ti, Mo, W, CoSurface metal impurity concentration 30pbw max, size of broken polysilicon: 80mm-150mm, conforming to GB/T 25074—2017
Definition
CIF Chinese main ports