PATENT CLAIM ANALYSIS

Application Number: 16397841
Application Type: Utility
Filing Date: 2019-04
Publication Date: 2019-08
Patent Classification: ["257", "292000"]

Abstract:
Some embodiments relate to an image sensor pixel comprising a transfer gate formed on a first surface of a semiconductor substrate, a floating diffusion formed in the first surface of the semiconductor substrate, and a buried-well vertically pinned photodiode having a charge accumulation/storage region disposed substantially beneath the transfer gate. The transfer gate is spaced away from the floating diffusion such that an intervening semiconductor region provides a potential barrier to charge flow from beneath the transfer gate to the floating diffusion. The transfer gate is operable to control a vertical pump gate to selectively transfer charge from the charge accumulation/storage region to the floating diffusion by pumping charge from the buried charge accumulation/storage region underlying the transfer gate, over the potential barrier, and out to the floating diffusion, such that full charge transfer can be achieved without overlapping the edge of the transfer gate with the floating diffusion.

Claim (Index 2):
The image sensor according to  claim 1 , wherein the vertical pump gate comprises a first semiconductor region disposed beneath the transfer gate and overlying the charge accumulation storage region, and a second semiconductor region disposed beneath the transfer gate and overlying the first semiconductor region and being laterally adjacent to the intervening semiconductor region, wherein the first semiconductor region provides a potential barrier that prevents charge from flowing back toward the charge accumulation/storage region during charge transfer from the second semiconductor region to the floating diffusion via the intervening semiconductor region.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 100.0
- Lexical Diversity: 2.30882
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15301267', '14898088', '15563593', '15555911', '15095918']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9413045767072568
- 35 USC 102 Novelty (BERT): 0.5941727486073287
- Combined Prediction Score: 0.906591393897264
- Mean Citation Score: 372.609102
- Max Citation Score: 489.2083
- Similarity Product: 486.3030635315538

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