PATENT CLAIM ANALYSIS

Application Number: 16435280
Application Type: Utility
Filing Date: 2019-06
Publication Date: 2019-10
Patent Classification: ["257", "314000"]

Abstract:
A method comprises forming material to be etched over a substrate. An etch mask comprising a silicon nitride-comprising region is formed elevationally over the material. The etch mask comprises an elevationally-extending mask opening in the silicon nitride-comprising region that has a minimum horizontal open dimension that is greater in an elevationally-innermost portion of the region than in an elevationally-outermost portion of the region. The elevationally-outermost portion has a greater etch rate in at least one of HF and H 3 PO 4  than does the elevationally-innermost portion. The etch mask is used as a mask while etching an elevationally-extending mask opening into the material. The silicon nitride-comprising region is exposed to at least one of HF and H 3 PO 4  to increase the minimum horizontal open dimension in the elevationally-outermost portion to a greater degree than increase, if any, in the minimum horizontal open dimension in the elevationally-innermost portion. Other aspects and embodiments, including structure independent of method of manufacture, are disclosed.

Claim (Index 30):
The string of memory cells of  claim 29  wherein the elevationally-innermost portion has 0.5 to 2 atomic percent carbon.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 100.0
- Lexical Diversity: 2.4507
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['16041388', '15851532', '15293133', '15229490', '16106693']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9472875177769932
- 35 USC 102 Novelty (BERT): 0.565853549883023
- Combined Prediction Score: 0.9091441209875962
- Mean Citation Score: 406.2867240000001
- Max Citation Score: 526.2585
- Similarity Product: 328.4745511733294

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