Question

3. In two separate Si crystal CZ growth runs, dopants with ko1 and ko2 are used where ko1 0.5 ko2. At some point along the length at 50% of the fraction solidified. the first ingot has twice the dopant concentration of the second ingot. a) Find ko1 and ko2. b) Find the ratio of dopant concentrations of the ingots at 60% fraction solidified Use the general equation for both runs: (Cs1-Col kol (1-MMO)k01-1 Assume C01 = C02.

please answer part b. 60% is the hard part ko1=2 ko2=4

Answer 1

2 ko 3 소。> [k,국 .nl E..tnj