Invention Grant
US09384974B2 Trench filling method and processing apparatus 有权
沟槽灌装方法和加工设备

Trench filling method and processing apparatus
Abstract:
The present disclosure provides a method for filling a trench formed on an insulating film of a workpiece. The method includes forming a first impurity-containing amorphous silicon film on a wall surface which defines the trench, forming a second amorphous silicon film on the first amorphous silicon film, and annealing the workpiece after the second amorphous silicon film is formed.
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