PATENT CLAIM ANALYSIS

Application Number: 16127468
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-03
Patent Classification: ["438", "669000"]

Abstract:
In a method of an embodiment, a tungsten film is formed on a workpiece. The workpiece includes an underlying film and a mask provided on the underlying film. The tungsten film has a first region extending along the side wall surface of the mask that defines an opening, and a second region extending on the underlying film. Subsequently, the tungsten film is plasma-etched while leaving the first region. In forming the tungsten film, a precursor gas containing tungsten is supplied to the workpiece. Then, plasma of hydrogen gas is generated in order to supply hydrogen active species to the precursor on the workpiece.

Claim (Index 5):
The method of  claim 1 , wherein the workpiece includes a silicon-containing film, an organic film provided on the silicon-containing film, an antireflection film containing silicon and provided on the organic film, and a resist mask provided on the antireflection film,\n the silicon-containing film has a first film formed of silicon and a second film formed of silicon oxide and provided on the first film, the underlying film is the antireflection film, and the mask provided on the underlying film is the resist mask, and the method further includes: after the performing the plasma etching of the tungsten film, performing a plasma etching of the antireflection film; performing a plasma etching of the organic film to form an organic mask from the organic film; performing a plasma etching of the second film; removing the organic mask; and performing a plasma etching of the first film.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 97.0
- Lexical Diversity: 2.19231
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['16118982', '14866467', '16315812', '16118672', '15149501']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8737888446208393
- 35 USC 102 Novelty (BERT): 0.4886735309060409
- Combined Prediction Score: 0.8352773132493595
- Mean Citation Score: 220.762406
- Max Citation Score: 231.70386
- Similarity Product: 183.0462062887144

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

Dataset: test