PATENT CLAIM ANALYSIS

Application Number: 15900383
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-10
Patent Classification: ["257", "292000"]

Abstract:
The performances of a semiconductor device are improved. A semiconductor device has a transfer transistor and a photodiode. The photodiode has an n type semiconductor region, an n +  type semiconductor region, and a second p type semiconductor region surrounded by a first p type semiconductor region of an interpixel isolation region. The n +  type semiconductor region is formed on the main surface side of the semiconductor substrate, and the n type semiconductor region is formed under the n +  type semiconductor region via the second p type semiconductor region. In the channel length direction of the transfer transistor, in the n type semiconductor region, an n −−  type semiconductor region having a lower impurity density than that of the n type semiconductor region is arranged, to improve the transfer efficiency of electric charges accumulated in the photodiode.

Claim (Index 10):
The semiconductor device according to  claim 8 , further comprising:\n a plurality of sixth semiconductor regions of the first conductivity type formed in the fourth semiconductor region, situated between the fifth semiconductor region and the back surface, and arrayed spaced apart from one another in the first direction; and a seventh semiconductor region formed in the fourth semiconductor region, and situated between the sixth semiconductor region and the back surface, wherein the seventh semiconductor region is arranged between the adjacent two second semiconductor regions of the second semiconductor regions in the first direction, and is separated from the adjacent two second semiconductor regions in the third direction.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 88.0
- Lexical Diversity: 2.63158
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15802937', '15363585', '15364456', '14804290', '14850690']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9074646762409052
- 35 USC 102 Novelty (BERT): 0.5108015049610541
- Combined Prediction Score: 0.86779835911292
- Mean Citation Score: 262.11700600000006
- Max Citation Score: 293.1805
- Similarity Product: 244.14395348030328

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