发明申请
US20070238302A1 Sequential oxide removal using fluorine and hydrogen 失效
使用氟和氢进行连续的氧化物去除

Sequential oxide removal using fluorine and hydrogen
摘要:
A method is provided for oxide removal from a substrate. The method includes providing the substrate in a process chamber where the substrate has an oxide layer formed thereon, and performing a sequential oxide removal process. The sequential oxide removal process includes exposing the substrate at a first substrate temperature to a flow of a first etching gas containing F2 to partially remove the oxide layer from the substrate, raising the temperature of the substrate from the first substrate temperature to a second substrate temperature, and exposing the substrate at the second temperature to a flow of a second etching gas containing H2 to further remove the oxide layer from the substrate. In one embodiment, a film may be formed on the substrate following the sequential oxide removal process.
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