· The EFG method contrast starkly with conventional bulk method, such as Bridgman method. The last technology produce crystal blocks, which have to cut.

· EFG process forms crystals with desired external and internal shapes.

· The melt rise from the crucible, by capillary action, through a very narrow slot of the so-called shaper (die). The melt forms a liquid meniscus at the shaper’s top. A seed crystal contacts the melt. As the seed is pulled up a crystal grows with a shape defined by the shaper-top-edges.