Patent ID: 9708707
Date: 2017-07-18
CPC Classifications: C23C

Claim:
1. A deposition method to deposit a thin film comprising: introducing into a chamber a first plurality of precursors to deposit, using thermally activated chemical vapor deposition (CVD), a first layer on a substrate in a non-self-limiting deposition process; after depositing the first layer, introducing a second plurality of precursors in a plasma ambient that modify the deposited first layer in a plasma modification process conducted for between 0.5 second and 30 seconds, wherein the plasma ambient is generated using a first power source; wherein the plasma modification process comprises, during generation of the plasma ambient using the first power source, applying a pulsed bias from a second power source to a substrate, wherein applying comprises performing multiple bias pulses on the deposited first layer, wherein applying the multiple bias pulses is performed throughout the duration of the plasma modification process, wherein a pulse period for the pulsed bias is less than 1 millisecond, wherein a duty cycle for applying the pulsed bias comprises a time ratio for a time in a high power state over a sum of the time in the high power state and a time in the low power state, wherein the duty cycle is greater than 50%, and repeating the deposition and plasma modification process for at least one subsequent layer.