PATENT CLAIM ANALYSIS

Application Number: 15915129
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["365", "185180"]

Abstract:
A nonvolatile semiconductor memory device according to one embodiment of the present invention includes: a memory cell array and a control circuit. The control circuit executes a first reading operation and a second reading operation. The first reading operation is an operation of reading a threshold voltage set in the selected memory cell by setting a voltage between a control gate electrode and source of the selected memory cell to a first value. The second reading operation is an operation of reading a threshold voltage set in the selected memory cell by setting a voltage between the control gate electrode and source of the selected memory cell to a second value lower than the first value. When executing the second reading operation, the control circuit keeps a voltage of the control gate electrode of the selected memory cell to 0 or a positive value.

Claim (Index 9):
9  A method of performing a reading operation in a nonvolatile semiconductor memory device, the nonvolatile semiconductor memory device including a memory cell array which comprises: a memory string having a plurality of memory cells connected in series therein; a first select transistor connected to one end of the memory string; a second select transistor connected to the other end of the memory string; a bit line connected to the memory string via the first select transistor; a source line connected to the memory string via the second select transistor; and a word line connected to a control gate electrode of each of the memory cells, the method of performing a reading operation being configured to apply the control gate electrode of a first memory cell of the memory cells selected in the memory string with a reading voltage to determine whether the first memory cell is conductive or not, and to apply the control gate electrode of a second memory cell other than the first memory cell in the memory string with a reading pass voltage to render the second memory cell conductive regardless of data stored in the second memory cell, the method comprising:\n performing a first reading operation configured to set a voltage of the control gate electrode relative to a voltage of a source of the first memory cell to a first value and to apply the control gate electrode of the second memory cell with a first reading pass voltage; and \n performing a second reading operation configured to set the voltage of the control gate electrode relative to the voltage of the source of the first memory cell to a voltage value which is smaller than the first value and to apply the control gate electrode of the second memory cell with a second reading pass voltage having a value different from that of the first reading pass voltage.

Metadata:
- Claim Count in Document: 51.0
- Percentile: 90.0
- Lexical Diversity: 2.96078
- Patent Class: 365.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15598554', '14088744', '15263518', '13749029', '13246004']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8479118293745098
- 35 USC 102 Novelty (BERT): 0.5323764259085535
- Combined Prediction Score: 0.8163582890279143
- Mean Citation Score: 386.615656
- Max Citation Score: 387.90625
- Similarity Product: 344.8422974161803

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