Patent ID: 11862458
Assignee: APPLIED MATERIALS, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. A processing method comprising:
forming a plasma of a silicon-containing precursor utilizing a pulsed source power and a pulsed bias power;
depositing a film on a semiconductor substrate with plasma effluents of the silicon-containing precursor, wherein the semiconductor substrate is housed in a processing region of a semiconductor processing chamber, wherein the semiconductor substrate defines a feature within the semiconductor substrate;
forming a plasma of a hydrogen-containing precursor within the processing region of the semiconductor processing chamber utilizing the pulsed source power and the pulsed bias power;
etching the film from a sidewall of the feature defined within the semiconductor substrate with plasma effluents of the hydrogen-containing precursor;
forming a plasma of a conversion precursor within the processing region of the semiconductor processing chamber; and
converting the film to a modified film.