PATENT CLAIM ANALYSIS

Application Number: 15987755
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-12
Patent Classification: ["438", "694000"]

Abstract:
A method for etching a target layer on a substrate by a dry etching process includes at least one etching cycle, wherein an etching cycle includes: depositing a carbon halide film using reactive species on the target layer on the substrate; and etching the carbon halide film using a plasma of a non-halogen hydrogen-containing etching gas, which plasma alone does not substantially etch the target layer, thereby generating a hydrogen halide as etchant species at a boundary region of the carbon halide film and the target layer, thereby etching a portion of the target layer in the boundary region.

Claim (Index 12):
The method according to  claim 11 , wherein the plasma-enhanced CVD comprises:\n (a) continuously feeding a noble gas to a reaction space wherein the substrate is placed; (b) continuously feeding a carbon halide gas to the reaction space; and (c) after elapse of a preset duration of steps (a) and (b) without excitation of the noble gas and the carbon halide gas, applying RF power to the reaction space to deposit the carbon halide film on the target layer, wherein no oxidizing gas is fed to the reaction space throughout steps (a) trough (c).

Metadata:
- Claim Count in Document: 10.0
- Percentile: 93.0
- Lexical Diversity: 2.03846
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15210256', '14981468', '14981434', '15835212', '12254652']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8699853914597411
- 35 USC 102 Novelty (BERT): 0.6096464277429153
- Combined Prediction Score: 0.8439514950880584
- Mean Citation Score: 264.145304
- Max Citation Score: 374.8737
- Similarity Product: 341.99447997971174

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test