PATENT CLAIM ANALYSIS

Application Number: 15971144
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["257", "213000"]

Abstract:
A FinFET device and fabrication method thereof is provided. The method includes: providing a semiconductor substrate and fins. Each fin includes a first sidewall region and a second sidewall region. An interlayer dielectric layer is formed on the semiconductor substrate and on the fins, with openings. Then a target work function layer is formed on sidewalls and on a bottom of each opening. The target work function layer includes a first target region covering the first sidewall region, a second target region covering the second sidewall region, and a third portion on the top surface of each fin. The second target region and the third portion of the target work function layer is doped with modification ions; and has a second effective work function value greater than a first effective work function value of the first target region of the target work function layer.

Claim (Index 6):
The fabrication method according to  claim 1 , wherein the target work function layer is formed by:\n forming an initial work function layer with a first effective work function value on the sidewalls and the bottom of each opening, wherein the initial work function layer includes a first initial region covering the first sidewall region and a second initial region covering the second sidewall region of each fin; and implanting the modification ions into the second initial region of the initial work function layer and into a third portion of the initial work function layer on the top surface of each fin using an ion implantation process, to form the target work function layer; wherein: the first initial region of the initial work function layer forms the first target region of the target work function layer, and the second initial region of the initial work function layer forms the second target region of the target work function layer.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 93.0
- Lexical Diversity: 2.73684
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14608729', '14608902', '15275030', '15187578', '15097575']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9135342781670786
- 35 USC 102 Novelty (BERT): 0.5042711384644772
- Combined Prediction Score: 0.8726079641968184
- Mean Citation Score: 237.370162
- Max Citation Score: 257.06213
- Similarity Product: 201.60052118296983

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