PATENT CLAIM ANALYSIS

Application Number: 16031480
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["257", "290000"]

Abstract:
In order to form a light receiving element having high reliability and a MOS transistor together on the same silicon substrate, after forming a gate electrode of the MOS transistor, a gate oxide film in a light receiving element forming region is removed. Then, a thermal oxide film is newly formed in the light receiving element forming region, and ion implantation is performed in the light receiving element forming region through the thermal oxide film such that a shallow pn junction is formed.

Claim (Index 1):
A method of manufacturing a semiconductor device, comprising:\n forming a first thermal oxide film serving as a gate oxide film of a MOS transistor on a surface of a silicon substrate having a light receiving element forming region and a MOS transistor forming region; forming a polysilicon film on the first thermal oxide film; patterning the polysilicon film, to thereby form a gate electrode of the MOS transistor in the MOS transistor forming region; removing the first thermal oxide film other than the first thermal oxide film under the gate electrode; forming a second thermal oxide film on the surface of the silicon substrate; and performing ion implantation of an impurity on the light receiving element forming region through the second thermal oxide film, to thereby form an impurity region.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 95.0
- Lexical Diversity: 1.93478
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15446680', '12462423', '12901055', '10398035', '11582911']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9239769081798485
- 35 USC 102 Novelty (BERT): 0.5186829077999043
- Combined Prediction Score: 0.883447508141854
- Mean Citation Score: 286.05508
- Max Citation Score: 339.61295
- Similarity Product: 311.93054939091815

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