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 13):
The method for manufacturing a semiconductor device according to  claim 11 , further comprising, between the steps (f) and (g), a step of:\n (i) forming a seventh semiconductor region of the first conductivity type situated between the main surface and the second semiconductor region.

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): 0.907389779437226
- 35 USC 102 Novelty (BERT): 0.5121593472466319
- Combined Prediction Score: 0.8678667362181667
- Mean Citation Score: 262.11700600000006
- Max Citation Score: 293.1805
- Similarity Product: 237.63209945636987

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