PATENT CLAIM ANALYSIS

Application Number: 15873698
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["257", "228000"]

Abstract:
The present technology relates to a solid-state imaging device, a manufacturing method of a solid-state imaging device, and an electronic device, in which degradation of transfer characteristics of a photo diode can be suppressed. A floating diffusion is formed to reach the same depth as a layer of a photo diode formed on a silicon substrate, and a transfer transistor gate is formed therebetween. A channel that is opened/closed by control of the transfer transistor gate is formed in the silicon substrate formed with the photo diode. With this configuration, charge accumulated in the photo diode can be transferred to the floating diffusion in a vertical direction relative to the depth direction, and degradation of transfer characteristics caused by elimination of the transfer channel can be suppressed by setting the transfer channel in the depth direction. The present technology can be applied to a solid-state imaging device.

Claim (Index 33):
A manufacturing method of a back-illuminated type solid-state imaging device, the back-illuminated type solid-state imaging device including:\n a first layer including at least one of an amplification transistor, a reset transistor, or a selection transistor; a second layer including at least one photo diode, the second layer separated from the first layer in a depth direction; and a transfer transistor configured to control charge transfer of the photo diode, wherein the transfer transistor is formed in a manner embedded in the first layer, and wherein the transfer transistor is at least partially disposed in the second layer; the manufacturing method comprising:\n forming the first layer, and then forming an excavated portion in the first layer such that a gate of the transfer transistor is formed in the second layer; and \n forming the transfer transistor in the excavated portion such that the gate is formed in the second layer.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 86.0
- Lexical Diversity: 2.50794
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['11862369', '14362797', '14531547', '15597843', '14082832']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9220112805746112
- 35 USC 102 Novelty (BERT): 0.4935876011568939
- Combined Prediction Score: 0.8791689126328396
- Mean Citation Score: 255.08501
- Max Citation Score: 272.78842000000003
- Similarity Product: 236.24106321928028

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