PATENT CLAIM ANALYSIS

Application Number: 16020094
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-01
Patent Classification: ["257", "324000"]

Abstract:
To provide a semiconductor device capable of having an ONO-film-configuring second oxide film with an optimized thickness. The semiconductor device has a semiconductor substrate having a first surface, a first gate insulating film placed on the first surface located in a first transistor formation region, and a second gate insulating film placed on the first surface located in a second transistor formation region. The first gate insulating film has a first oxide film, a first nitride film placed thereon, and a second oxide film placed thereon. The second oxide film includes a first layer and a second layer placed thereon. The height of the first surface in a region where the second insulating film is placed is lower than that in a region where the first gate insulating film is placed. The nitrogen concentration in the first layer is higher than that in the second layer.

Claim (Index 8):
The method of manufacturing a semiconductor device according to  claim 7 , further comprising the step of:\n forming, over the first surface located in a region where a third transistor is to be formed, a third gate insulating film thinner than the second gate insulating film, wherein the portion of the second nitride film remains at the time of formation of the second gate insulating film, wherein the second nitride film oxidized at the time of formation of the second gate insulating film is removed by etching prior to the third gate insulating film formation step, and wherein the portion of the second nitride film which has remained at the time of formation of the second gate insulating film is oxidized into the second layer at the time of formation of the third gate insulating film.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 94.0
- Lexical Diversity: 3.31915
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15845628', '15513545', '14155961', '14586452', '14620401']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.918699758486992
- 35 USC 102 Novelty (BERT): 0.4875126778854253
- Combined Prediction Score: 0.8755810504268354
- Mean Citation Score: 230.586438
- Max Citation Score: 234.01811
- Similarity Product: 182.80223844644428

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