PATENT CLAIM ANALYSIS

Application Number: 16005529
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-01
Patent Classification: ["257", "004000"]

Abstract:
A vanadium dioxide (VO 2 )-based threshold switch device exhibiting current-controlled negative differential resistance (S-type NDR), an electrical oscillator circuit based on the threshold switch device, a wafer including a plurality of said devices, and a method of manufacturing said device are provided. The VO 2 -based threshold switch device exhibits volatile resistance switching and current-controlled negative differential resistance from the first time a sweeping voltage or voltage pulse is applied across the device without being treated with an electroforming process. Furthermore, the device exhibits substantially identical switching characteristics over at least 10 3  switching operations between a high resistance state (HRS) and a low resistance state (LRS), and a plurality of threshold switch devices exhibits a threshold voltage V T  spreading of less than about 25%. The threshold switch device may be included in an oscillator circuit to produce an astable oscillator that may serve as a functional building block in spiking-neuron based neuromorphic computing.

Claim (Index 18):
A method of manufacturing a threshold switch device comprising:\n providing a complementary metal-oxide-semiconductor (CMOS)-compatible substrate; depositing a first electrode on the CMOS-compatible substrate to extend along a first direction; depositing a switching layer composed substantially of polycrystalline vanadium dioxide (VO 2 ) in a thin film over the first electrode, the switching layer having no epitaxial relationship with the CMOS-compatible substrate; and depositing a second electrode over the switching layer to extend along a second direction crossing the first direction; the switching layer having a first contact with the first electrode and a second contact with the second electrode at least along a thickness direction (TD) overlap of the device between the first electrode and the second electrode, wherein the threshold switch device is not subjected to an electroforming process prior to resistive switching.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 94.0
- Lexical Diversity: 1.75758
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15417049', '15879363', '13960735', '13149757', '11740309']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.91767906111523
- 35 USC 102 Novelty (BERT): 0.4791459267810822
- Combined Prediction Score: 0.8738257476818152
- Mean Citation Score: 197.336776
- Max Citation Score: 224.58067000000003
- Similarity Product: 186.08067374044413

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