Preservation of Seed Crystals in Feedstock Melting for Cast Quasi-Single Crystalline Silicon Ingots

Figure 7

Melting process in evolved DS furnace for power distribution ratio of 5 : 5: (a) 480 min; (b) 540 min; (c) 600 min; (d) 660 min; (e) 720 min.

(a)

(b)

(c)

(d)

(e)