2024 INTERNATIONAL VLSI SYMPOSIUM ON TECHNOLOGY, SYSTEMS AND APPLICATIONS, VLSI TSA
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2024年
关键词:
dielectric breakdown;
high-kappa metal gate;
physical unclonable function;
D O I:
10.1109/VLSITSA60681.2024.10546409
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
A complementary 3T-PUF cell is proposed and implemented by 28nm High-kappa Metal Gate (HKMG) CMOS logic process. The new PUF cell takes use of gate dielectric breakdown on either side of the center transistor arbitrarily with self-inhibit mechanism, the cell can create and store uniquely random data. A unique negative bias read achieves the clear distribution of resistive states so that it can be established. Experiments show that the complementary 3T-PUF cell provides good data stability after long-term read stress and high temperature bake. The uniqueness and randomness of PUF array are further evaluated by Hamming-Distance (HD) and following Hamming-Weight (HW).