PATENT CLAIM ANALYSIS

Application Number: 15948627
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["257", "401000"]

Abstract:
Methods disclosed herein include replacing top portions of source and drain sections of a finFET structure having sidewalls and a first doping with doped amorphous silicon (a-Si) or amorphous silicon germanium (a-SiGe) having a second doping opposite to a first doping and that extends above the sidewalls. Disclosed method also include performing sub-melt laser annealing of the a-Si or a-SiGe to respectively form c-Si or c-SiGe to define the source and drain regions of the finFET. Unconverted a-Si or a-SiGe is removed. The source and drain regions so formed include expanded-area portions that extend beyond the tops of the sidewalls.

Claim (Index 14):
A method of forming a source region and a drain region for a finFET, comprising:\n a) defining a c-Si fin having a first doping, opposite sides, a top section having a top portion with a top, and also having a source section and a drain section; b) covering the top and opposite sides of the central portion of the c-Si fins with a gate material to define the gates of the finFETs; c) covering the sides of the source and drain sections with sidewalls made of a dielectric material; d) selectively removing the top portions of the source and drain sections; e) replacing the top portions with a doped amorphous material that comprises either Si or SiGe, the doped amorphous material having a second doping opposite to the first doping using a blanket deposition of the doped amorphous material so that the doped amorphous material extends beyond the tops of the sidewalls; f) performing sub-melt laser annealing to convert the doped amorphous material to a doped crystalline material comprising either Si or Ge and having the second doping to define the source and drain regions of the finFETs, wherein the doped crystalline material beyond the tops of the sidewalls; g) removing any of the doped amorphous material that was not converted to the doped crystalline material during act f).

Metadata:
- Claim Count in Document: 32.0
- Percentile: 91.0
- Lexical Diversity: 1.8
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['11776118', '14196596', '15695688', '15860840', '14792963']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9259791376099112
- 35 USC 102 Novelty (BERT): 0.5131453122377772
- Combined Prediction Score: 0.8846957550726977
- Mean Citation Score: 291.346874
- Max Citation Score: 312.3481
- Similarity Product: 241.8648297408461

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