Methods and apparatus for plasma-based deposition

P Subramonium, A Bingham, T Thomas, J Henri… - US Patent …, 2015 - Google Patents
High-deposition rate methods for forming transparent ash able hardmasks (AHMs) that have
high plasma etch selectiv ity to underlying layers are provided. The methods involve placing …

PECVD films for EUV lithography

N Shamma, T Mountsier, D Schlosser - US Patent 9,618,846, 2017 - Google Patents
Provided herein are multi-layer stacks for use in extreme ultraviolet lithography tailored to
achieve optimum etch contrast to shrink features and smooth the edges of features while …

Method for forming a mask by etching conformal film on patterned ashable hardmask

N Shamma, B Van Schravendijk, S Reddy… - US Patent …, 2016 - Google Patents
Methods and apparatuses for multiple patterning using image reversal are provided. The
methods may include depositing gap-fill ashable hardmasks using a deposition-etch-ash …

PECVD films for EUV lithography

N Shamma, T Mountsier, D Schlosser - US Patent 9,304,396, 2016 - Google Patents
Provided herein are multi-layer stacks for use in extreme ultraviolet lithography tailored to
achieve optimum etch con trast to shrink features and smooth the edges of features while …

Remote plasma based deposition of graded or multi-layered silicon carbide film

BN Varadarajan, B Gong, G Yuan, Z Gui… - US Patent 10,297,442, 2019 - Google Patents
Provided are methods and apparatuses for depositing a graded or multi-layered silicon
carbide film using remote plasma. Agraded or multi-layered silicon carbide film can be …

Feature fill with nucleation inhibition

A Chandrashekar, E Jeng, R Humayun… - US Patent …, 2018 - Google Patents
Described herein are methods of filling features with tungsten, and related systems and
apparatus, involving inhibition of tungsten nucleation. In some embodiments, the methods …

Remote plasma based deposition of oxygen doped silicon carbide films

BN Varadarajan - US Patent 10,832,904, 2020 - Google Patents
(74) Attorney, Agent, or Firm Weaver Austin Villeneuve & Sampson LLP (57) ABSTRACT
Disclosed are methods and systems for providing oxygen doped silicon carbide. A layer of …

Diffusion barrier and etch stop films

Y Yu, P Subramonium, Z Fang, J Henri, E Apen… - US Patent …, 2011 - Google Patents
Films having high hermeticity and a low dielectric constant can be used as copper diffusion
barrier films, etch stop films, CMP stop films and other hardmasks during IC fabrication …

Carbon deposition-etch-ash gap fill process

C Ji, S Reddy, T Wang, M Sriram - US Patent 9,023,731, 2015 - Google Patents
Techniques, systems, and apparatuses for performing carbon gap-fill in semiconductor
wafers are provided. The tech niques may include performing deposition-etching opera tions …

Staircase encapsulation in 3D NAND fabrication

Y Yu, BJ Van Schravendijk, N Shankar… - US Patent …, 2020 - Google Patents
Methods and apparatuses for depositing an encapsulation layer over a staircase structure
during fabrication of a 3D NAND structure to prevent degradation of an oxide-oxide interface …