PATENT CLAIM ANALYSIS

Application Number: 15904585
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-08
Patent Classification: ["257", "392000"]

Abstract:
A semiconductor device includes first and second transistors each having a high-k metal gate disposed over a respective channel region of the transistors. The semiconductor device further includes first and second dielectric features in physical contact with an end of the respective high-k metal gates. The first and second transistors are of a same conductivity type. The two high-k metal gates have a same number of material layers. The first transistor's threshold voltage is different from the second transistor's threshold voltage, and at least one of following is true: the two high-k metal gates have different widths, the first and second dielectric features have different distances from respective channel regions of the two transistors, and the first and second dielectric features have different dimensions.

Claim (Index 17):
A method, comprising:\n providing a workpiece that includes a substrate, a semiconductor fin over the substrate, first and second high-k metal gate structures engaging the semiconductor fin and oriented lengthwise along a first direction, wherein the first and second high-k metal gate structures have a same number of material layers and have a substantially same width; forming a patterned hard mask over the workpiece, the patterned hard mask providing first and second openings directly over the first and second high-k metal gate structures respectively, wherein the first opening has a first dimension along the first direction and is away from the semiconductor fin by a first distance along the first direction, wherein the second opening has a second dimension along the first direction and is away from the semiconductor fin by a second distance along the first direction, and wherein either the first and second dimensions are different or the first and second distances are different; etching the first and second high-k metal gate structures through the patterned hard mask using an etchant that contains oxygen, chlorine, or fluorine elements, resulting in trenches in the workpiece; and filling the trenches with one or more dielectric materials.

Metadata:
- Claim Count in Document: 59.0
- Percentile: 88.0
- Lexical Diversity: 2.25
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14803260', '12433356', '12370276', '15827709', '15649865']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9076120472241966
- 35 USC 102 Novelty (BERT): 0.4578244110687837
- Combined Prediction Score: 0.8626332836086553
- Mean Citation Score: 150.25766800000005
- Max Citation Score: 152.51671000000005
- Similarity Product: 122.4605233823246

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test