PATENT CLAIM ANALYSIS

Application Number: 16028111
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["257", "315000"]

Abstract:
Some embodiments include a semiconductor device having a stack structure including a source comprising polysilicon, an etch stop of oxide on the source, a select gate source on the etch stop, a charge storage structure over the select gate source, and a select gate drain over the charge storage structure. The semiconductor device may further include an opening extending vertically into the stack structure to a level adjacent to the source. A channel comprising polysilicon may be formed on a side surface and a bottom surface of the opening. The channel may contact the source at a lower portion of the opening, and may be laterally separated from the charge storage structure by a tunnel oxide. A width of the channel adjacent to the select gate source is greater than a width of the channel adjacent to the select gate drain.

Claim (Index 6):
A method of forming a semiconductor device, comprising:\n forming a stack structure, the stack structure including,\n a source, \n a select gate source level over the source, \n a plurality of control gate levels over the select gate source level, and \n a select gate drain level over the control gate level; \n forming an opening extending vertically into the stack structure the opening extending through the select gate drain level, the select gate source level and the plurality of control gate levels laterally etching the surfaces defining the opening to form a recess into the control gate level; forming an interpoly dielectric over a bottom surface and a side surface of the opening; forming a charge storage structure in the recess; and forming a channel comprising polysilicon on the bottom surface and the side surface of the opening, wherein a first width of the opening adjacent the charge storage structure is substantially the same as a second width of the opening adjacent the select gate drain level.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 95.0
- Lexical Diversity: 2.55932
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15296858', '15009834', '15056548', '13838579', '14536021']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9168443744174428
- 35 USC 102 Novelty (BERT): 0.4894073005657844
- Combined Prediction Score: 0.8741006670322771
- Mean Citation Score: 199.835922
- Max Citation Score: 252.77898
- Similarity Product: 210.62304927786468

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