Patent ID: 7879511

Claim:
A sequential lateral solidification (SLS) mask for crystallizing a polycrystalline silicon from an amorphous silicon film, comprising: a first portion pervious to light for crystallizing the polycrystalline silicon from the amorphous silicon film, said first portion being enclosed by an impervious portion; a second portion configured to shield the light and surrounded by the first portion; a third portion pervious for crystallizing the polycrystalline silicon from the amorphous silicon film to light and disposed parallel to the first portion and the second portion in a predetermined direction, wherein the third portion has the same periphery configuration as that of the first portion and each of the first portion and the third portion has at least one continuous boundary; a fourth portion pervious to light, wherein the fourth portion is surrounded by the second portion; and a fifth portion configured to shield the light and surrounded by the third portion.