Organic Current Mirror PUF for Improved Stability Against Device Aging
| Autor: | Yasuhiro Ogasahara, Zhaoxing Qin, Takashi Sato, Michihiro Shintani, Kazunori Kuribara |
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| Rok vydání: | 2020 |
| Předmět: |
Imagination
Hardware security module Chemical substance Computer science media_common.quotation_subject 010401 analytical chemistry Transistor 01 natural sciences 0104 chemical sciences law.invention ComputingMilieux_MANAGEMENTOFCOMPUTINGANDINFORMATIONSYSTEMS Search engine Reliability (semiconductor) Current mirror law Electronic engineering Electrical and Electronic Engineering Instrumentation Voltage media_common |
| Zdroj: | IEEE Sensors Journal. 20:7569-7578 |
| ISSN: | 2379-9153 1530-437X |
| Popis: | Physically unclonable functions (PUFs) are important primitives in the field of hardware security. Their applications can be further broadened if PUFs are fabricated using organic thin-film transistors (OTFTs). Examples include smart packaging that proves authenticity of a contained product and privacy protection for information gathered by organic sensors. This paper proposes an organic current mirror PUF (OCM-PUF) that can be fabricated on a flexible substrate. The proposed OCM-PUF adapts a current mirror structure to achieve self-compensation of the device performance degradation of OTFTs, which is unavoidable in most organic materials. Two types of OCM-PUFs were designed using a low supply voltage OTFT to evaluate the metrics as a PUF. The fabricated OCM-PUFs maintained a reliability of nearly 95% over few weeks, thereby showing that the proposed PUF achieved a high tolerance against response changes caused by device aging. |
| Databáze: | OpenAIRE |
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