| abstract |
A method for forming a crystal, which comprises applying a crystal forming treatment on a substrate having a free surface on which a deposition surface (S NDS ) with a small nucleation density and a deposition surface (S NDL ) having a sufficinetly small area for crystal growth only from a single nucleus and having a greater nucleation density (ND L ) than the nucleation density (ND S ) of said deposition surface (S NDS ) are arranged adjacent to each other, thereby growing a single crystal from said single nucleus. |