PATENT CLAIM ANALYSIS

Application Number: 15901992
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-04
Patent Classification: ["257", "401000"]

Abstract:
A semiconductor device structure is provided. The semiconductor device structure includes a substrate having a fin structure protruding therefrom, an insulating layer is over the substrate to cover the fin structure, a gate structure in the insulating layer and over the fin structure, and source and drain features covered by the insulating layer and over the fin structure on opposing sidewall surfaces of the gate structure. The gate structure includes a gate electrode layer, a conductive sealing layer covering the gate electrode layer, and a gate dielectric layer between the fin structure and the gate electrode layer and surrounding the gate electrode layer and the conductive sealing layer. The gate electrode layer has a material removal rate that is higher than the material removal rate of the conductive sealing layer in a chemical mechanical polishing process.

Claim (Index 15):
A method of forming a semiconductor device structure, comprising:\n providing an insulating layer over a substrate that has a fin structure protruding therefrom, wherein the insulating layer comprises an opening that exposes the fin structure; forming a work function metal layer over the insulating layer and conformally covering an inner surface of the opening; forming a metal nucleation layer over the work function metal layer and filling the opening; forming a metal bulk layer over the metal nucleation layer; successively removing the metal bulk layer, the metal nucleation layer, and the work function metal layer over the insulating layer by a first chemical mechanical polishing process to expose the insulating layer, wherein a recess is formed above the metal nucleation layer in the opening and surrounded by the work function metal layer in the opening; forming a conductive sealing layer over the insulating layer and filling the recess; and removing the conductive sealing layer over the insulating layer by a second chemical mechanical polishing process.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 88.0
- Lexical Diversity: 2.68519
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15335595', '15786427', '15428798', '15706764', '15660355']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8967521606155633
- 35 USC 102 Novelty (BERT): 0.4764403161359508
- Combined Prediction Score: 0.8547209761676021
- Mean Citation Score: 184.276074
- Max Citation Score: 187.951
- Similarity Product: 151.25377364951368

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