High density carbon films for patterning applications
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United States of America Patent
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Dec 12, 2023
Grant Date -
Apr 30, 2020
app pub date -
Oct 4, 2019
filing date -
Oct 26, 2018
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Abstract
Embodiments of the present disclosure generally relate to deposition of high transparency, high-density carbon films for patterning applications. In one embodiment, a method of forming a carbon film on a substrate is provided. The method includes flowing a hydrocarbon-containing gas mixture into a process chamber having a substrate positioned on an electrostatic chuck, wherein the substrate is maintained at a temperature of about −10° C. to about 20° C. and a chamber pressure of about 0.5 mTorr to about 10 Torr, and generating a plasma by applying a first RF bias to the electrostatic chuck to deposit a diamond-like carbon film containing about 60% or greater hybridized sp3 atoms on the substrate, wherein the first RF bias is provided at a power of about 1800 Watts to about 2200 Watts and at a frequency of about 40 MHz to about 162 MHz.
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