PATENT CLAIM ANALYSIS

Application Number: 15945915
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["257", "288000"]

Abstract:
Semiconductor device and fabrication method are provided. The method includes: providing a base substrate; forming gate structures on the base substrate; forming source/drain doped regions in the base substrate on sides of each gate structure, where the source/drain doped regions have recessed top surfaces and are doped with source/drain ions; and doping into the recessed top surfaces of the source/drain doped regions with contact ions to form contact doped regions in top portions of the source/drain doped regions, where the contact ions have a conductivity type same as the source/drain ions.

Claim (Index 5):
The fabrication method according to  claim 1 , wherein:\n when the semiconductor device is a planar metal-oxide-semiconductor transistor, forming the source/drain doped region includes:\n forming an initial source/drain doped region with the source/drain ions in the base substrate on each side of the gate structure, wherein the initial source/drain doped region includes a central region and a marginal region surrounding the central region and the central region has a top surface coplanar with the marginal region; and \n etching the initial source/drain doped region to form the source/drain doped region, wherein an etching depth of the central region is deeper than an etching depth of the marginal region; and \n when the semiconductor device is a fin field effect transistor, forming the source/drain doped region includes:\n forming an initial source/drain doped region with the source/drain ions in the base substrate on each side of the gate structure, wherein the initial source/drain doped region includes a first region and a second region on two sides of the first region, and a direction from the second region to the first region is perpendicular to an extending direction of the gate structure, and the first region and the second region have a coplanar top surface; and \n etching the initial source/drain doped region to form the source/drain doped region, wherein an etching depth of the first regions is deeper than an etching depth of the second regions.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 91.0
- Lexical Diversity: 2.10638
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15909285', '10761613', '15784357', '10154740', '15275030']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9270958473627832
- 35 USC 102 Novelty (BERT): 0.5037468881658369
- Combined Prediction Score: 0.8847609514430886
- Mean Citation Score: 234.820934
- Max Citation Score: 249.48506
- Similarity Product: 171.67478400443434

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

Dataset: test