Control of the Gas Flow in an Industrial Directional Solidification Furnace for Production of High Purity Multicrystalline Silicon Ingots

Figure 4

Distributions of SiO (left) and CO (right) concentration above the melt free surface for different cover designs without surface reaction: (a) no cover, (b) flat cover, and (c) U cover.

(a)

(b)

(c)