PATENT CLAIM ANALYSIS

Application Number: 16249369
Application Type: Utility
Filing Date: 2019-01
Publication Date: 2019-05
Patent Classification: ["438", "703000"]

Abstract:
Embodiments of a method for device fabrication by reverse pitch reduction flow include forming a first pattern of features above a substrate and forming a second pattern of pitch-multiplied spacers subsequent to forming the first pattern of features. In embodiments of the invention the first pattern of features may be formed by photolithography and the second pattern of pitch-multiplied spacers may be formed by pitch multiplication. Other methods for device fabrication are provided.

Claim (Index 15):
A method for semiconductor device fabrication, comprising\n forming an etch stop on a first mask over a material; forming a first pattern of features over the first mask, the features of the first pattern of features having a first width; forming features in a selectively definable material over the first mask; removing a portion of the features in the selectively definable material to form modified features in the selectively definable material; conformally forming a spacer material over the modified features, the first mask, and the first pattern of features; removing a portion of the spacer material to expose a portion of the first mask between each of the modified features in the selectively definable material and to form spacers adjacent to each of the modified features in the selectively definable material; removing the modified features to form a second pattern of spacers over the first mask, the spacers of the second pattern of spacers having a second width less than the first width; forming a second mask over the first pattern of features and the second pattern of spacers and leaving portions of at least the second pattern of spacers exposed; removing the exposed portions of the second pattern of spacers; transferring the first pattern of features and the second pattern of spacers to the first mask and to one or materials underlying the first mask.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 99.0
- Lexical Diversity: 1.94872
- Patent Class: 438.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['11830449', '11521851', '12687005', '11492323', '12707560']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8763434115317221
- 35 USC 102 Novelty (BERT): 0.5519314400042098
- Combined Prediction Score: 0.843902214378971
- Mean Citation Score: 361.1904640000001
- Max Citation Score: 414.2456
- Similarity Product: 321.2441787045479

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