PATENT CLAIM ANALYSIS

Application Number: 15980767
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2019-11
Patent Classification: ["326", "008000"]

Abstract:
A physically unclonable function (PUF) device and a method for maximizing existing process variation for a physically unclonable device are provided. The method of maximizing process variation of the PUF device includes: modeling a physically unclonable function (PUF) device, comprising a plurality of PUF cells, selecting the size of transistors in the PUF device to be smaller than a predetermined size defined according to a design rule check (DRC) and generate maximum variations among the plurality of PUF cells, varying the material of the PUF device, and driving the PUF device with a predetermined voltage. The physically unclonable device includes: a plurality of PUF cells, configured to generate an output. Each of the plurality of PUF cells includes a harvester circuit, configured to generate a bit line and a complementary bit line. The harvester circuit is selected to be smaller than a predetermined size defined according to a design rule check (DRC) and generate maximum variations among the plurality of PUF cells; and a sense amplifier having a plurality of transistors configured to receive a first input signal and a second input signal from the harvester circuit.

Claim (Index 17):
The method of  claim 11 , wherein varying the material of the PUF device further comprising the steps of:\n enhancing doping concentration of the PUF device results in increasing a threshold voltage of the PUF device; depositing and annealing the PUF device results in variation in a grain structure and a size of the PUF device thereby increase thickness and width of the PUF device, wherein increase of thickness in the PUF device eventually increases the resistance of the PUF device.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 93.0
- Lexical Diversity: 2.82432
- Patent Class: 326.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15288342', '15288382', '12938477', '14667665', '15598293']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6263648851293874
- 35 USC 102 Novelty (BERT): 0.5108602389459366
- Combined Prediction Score: 0.6148144205110424
- Mean Citation Score: 223.4088
- Max Citation Score: 237.08208
- Similarity Product: 136.99524777282716

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