PATENT CLAIM ANALYSIS

Application Number: 15870058
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["438", "666000"]

Abstract:
A method includes performing an implantation on a portion of a first layer to form an implanted region, and removing un-implanted portions of the first layer. The implanted region remains after the un-implanted portions of the first layer are removed. An etching is then performed on a second layer underlying the first layer, wherein the implanted region is used as a portion of a first etching mask in the etching. The implanted region is removed. A metal mask is etched using the second layer to form a patterned mask. An inter-layer dielectric is then etched to form a contact opening, wherein the patterned mask is used as a second etching mask.

Claim (Index 3):
The method of  claim 2  further comprising:\n after the un-implanted portions of the first layer are removed, applying a photo resist over the first implanted region; and \n forming a trench in the photo resist, wherein the trench comprises a first portion overlapping a portion of the first implanted region, and a second portion and a third portion on opposite side of the first portion, and in the first etching, the photo resist and the first implanted region are in combination used as the first etching mask.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 86.0
- Lexical Diversity: 2.5
- Patent Class: 438.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15462001', '13222181', '13691367', '14157720', '15482028']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8504026297324577
- 35 USC 102 Novelty (BERT): 0.5040758064421706
- Combined Prediction Score: 0.815769947403429
- Mean Citation Score: 200.649622
- Max Citation Score: 283.339
- Similarity Product: 225.7401164948344

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