PATENT CLAIM ANALYSIS

Application Number: 15972434
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2019-01
Patent Classification: ["438", "715000"]

Abstract:
Methods are described herein for etching tantalum-containing films with various potential additives while still retaining other desirable patterned substrate portions. The methods include exposing a tantalum-containing film to a chlorine-containing precursor (e.g. Cl 2 ) with a concurrent plasma. The plasma-excited chlorine-containing precursor selectively etches the tantalum-containing film and other industrially-desirable additives. Chlorine is then removed from the substrate processing region. A hydrogen-containing precursor (e.g. H 2 ) is delivered to the substrate processing region (also with plasma excitation) to produce a relatively even and residue-free tantalum-containing surface. The methods presented remove tantalum while retaining materials elsewhere on the patterned substrate.

Claim (Index 8):
The method of  claim 5  wherein the tantalum-containing material has at least 50% atomic percent tantalum.

Metadata:
- Claim Count in Document: 24.0
- Percentile: 93.0
- Lexical Diversity: 1.68657
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15332849', '14512973', '15609372', '14989077', '14157724']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.917222911701318
- 35 USC 102 Novelty (BERT): 0.6122161659275153
- Combined Prediction Score: 0.8867222371239377
- Mean Citation Score: 319.823162
- Max Citation Score: 324.59982
- Similarity Product: 180.11542601017717

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