Applied Materials, Inc.

Soham Sunjay Asrani

Srinivas D Nemani

Ellie Y Yieh

Bhargav S Citla

Joshua Rubnitz

Douglas A Buchberger, Jr

Nikolaos Bekiaris

Erica Chen

Jethro Tannos

Exemplary processing methods may include forming a plasma of a silicon-containing precursor. The methods may include depositing a flowable film on a semiconductor substrate with plasma effluents of the silicon-containing precursor. The processing region may be at least partially defined between a faceplate and a substrate support on which the semiconductor substrate is seated. A bias power may be applied to the substrate support from a bias power source. The methods may include forming a plasma of a hydrogen-containing precursor within the processing region of the semiconductor processing chamber. The methods may include etching the flowable film from a sidewall of the feature within the semiconductor substrate with plasma effluents of the hydrogen-containing precursor. The methods may include densifying remaining flowable film within the feature defined within the semiconductor substrate with plasma effluents of the hydrogen-containing precursor.

Directional selective deposition

Methods and apparatus for processing a substrate are provided herein. For example, a method includes supplying a vaporized precursor into a processing volume, supplying activated elements including ions and radicals from a remote plasma source, energizing the activated elements using RF source power at a first duty cycle to react with the vaporized precursor to deposit an SiNHfilm onto a substrate disposed in the processing volume, supplying a first process gas from the remote plasma source while providing RF bias power at a second duty cycle different from the first duty cycle to the substrate support to convert the SiNHfilm to an SiOx film, supplying a process gas mixture formed from a second process gas supplied from the remote plasma source and a third process gas supplied from the gas supply while providing RF bias power at the second duty cycle to the substrate support, and annealing the substrate.

Methods and apparatus for processing a substrate

Growing community of inventors

San Jose, CA, United States of America

Soham Sunjay Asrani