Patent attributes
A deposition method including following steps is provided. A first precursor is injected into a chamber along a first direction, and a bias power supply is turned on to attract the first precursor to a substrate. A second precursor is injected into the chamber along a second direction perpendicular to the first direction, and the bias power supply is turned on to attract the second precursor to the substrate. A first inert gas is injected into the chamber along the first direction, and the bias power supply is turned off to purge an unnecessary part of the first precursor or an unnecessary part of the second precursor or a by-product. A second inert gas is injected the chamber along the second direction, and the bias power supply is turned off to purge the unnecessary part of the first precursor or the unnecessary part of the second precursor or the by-products.
