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 14):
The method of  claim 12 , wherein modeling the harvester circuit her comprising:\n a control terminal of the first pair of transistors are coupled to the pre-charge signal, and a control terminal of the second pair of transistors are coupled to the pulse evaluation signal with a predetermined delay.

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): 0.6287066750023022
- 35 USC 102 Novelty (BERT): 0.5000072112616925
- Combined Prediction Score: 0.6158367286282412
- Mean Citation Score: 223.4088
- Max Citation Score: 237.08208
- Similarity Product: 161.56306190528866

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