PATENT CLAIM ANALYSIS

Application Number: 15913297
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["257", "316000"]

Abstract:
A semiconductor device and a fabrication method are provided. The fabrication method includes providing a gate structure on a substrate and a first protective layers on the gate structure; forming an initial sidewall spacer on a sidewall of each of the gate structure and the first protective layer; forming a first sidewall spacer on a sidewall of the initial sidewall spacer, the first and initial sidewall spacers being made of different materials; forming a second sidewall spacer by removing a portion of the initial sidewall spacer, leaving a trench formed above the second sidewall spacer and between the first sidewall spacer and the first protective layer; and forming a second protective layer in the trench, the second protective layer and the first sidewall spacer being made of a same material. The second sidewall spacer has a top surface higher than or level with a top surface of the gate structure.

Claim (Index 4):
The method according to  claim 2 , further comprising:\n providing a plurality of gate structures on the substrate, wherein the method further includes: forming an interlayer dielectric layer covering the third sidewall spacer, the first sidewall spacer, the second protective layer, the first protective layer, and the substrate; forming a patterned mask layer on the interlayer dielectric layer; and using the patterned mask layer as a mask to etch the interlayer dielectric layer to form a contact hole in the interlayer dielectric layer between adjacent gate structures, the contact hole exposing top and sidewall surfaces of the third sidewall spacer, the top surface of the first sidewall spacer, a top surface of the second protective layer, and the substrate.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 90.0
- Lexical Diversity: 2.85714
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14970881', '14070645', '15059635', '15645013', '14968108']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9193845461498752
- 35 USC 102 Novelty (BERT): 0.4870588286514322
- Combined Prediction Score: 0.8761519744000308
- Mean Citation Score: 235.77663
- Max Citation Score: 248.71288
- Similarity Product: 208.0983242380809

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