PATENT CLAIM ANALYSIS

Application Number: 15871818
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-10
Patent Classification: ["257", "324000"]

Abstract:
In a MONOS memory having an ONO film, dielectric breakdown and a short circuit are prevented from occurring between the end of the lower surface of a control gate electrode over the ONO film and a semiconductor substrate under the ONO film. When a polysilicon film formed over the ONO film ON is processed to form the control gate electrode, the ONO film is not processed. Subsequently, a second offset spacer covering the side surface of the control gate electrode is formed. Then, using the second offset spacer as a mask, the ONO film is processed. This results in a shape in which in the gate length direction of the control gate electrode, the ends of the ONO film protrude outwardly from the side surfaces of the control gate electrode, respectively.

Claim (Index 1):
A method for manufacturing a semiconductor device, comprising the steps of:\n (a) providing a semiconductor substrate; (b) forming a first insulation film including a charge accumulation part over the semiconductor substrate in a first region; (c) forming a first gate electrode over the first insulation film in the first region; (d) forming a second insulation film covering respective side surfaces on the opposite sides of the first gate electrode in the gate length direction of the first gate electrode; (e) performing etching using the second insulation film as a mask, and thereby processing the first insulation film; and (f) performing ion implantation using the second insulation film as a mask, and thereby forming first source/drain regions at the top surface of the semiconductor substrate in the first region, wherein a first transistor including the first gate electrode and the first source/drain regions forms a nonvolatile storage element.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 86.0
- Lexical Diversity: 2.26984
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13964576', '15011510', '15661649', '14921445', '15468673']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9306494535363128
- 35 USC 102 Novelty (BERT): 0.5097258200243205
- Combined Prediction Score: 0.8885570901851136
- Mean Citation Score: 295.1903220000001
- Max Citation Score: 312.2362
- Similarity Product: 278.20573981232644

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test