An asynchronous low power RSA circuit structure and its modular multiplication circuit structure for smart cards and RFID tags are proposed. By using GTECH optimization scheme and BrzCallMux implementation strategy, ASIC implementation is carried out based on a TSMC 130 nm standard CMOS technology. Experimental results show that the area of the proposed asynchronous low power RSA is only 4% of that of another asynchronous RSA, its average time to perform a cryptographic operation is only 0.216% of that of another asynchronous RSA, and its power consumption is only 16.99% of that of its corresponding synchronous counterpart.

An improved model is proposed based on the transient power law model under Human Body Model (HBM) stress. This model can predict the gate oxide breakdown statistically under HBM stress. Through HSPICE simulation tool, the corresponding DC effective voltage on the MOS can be calculated. The scatter chart of the precharge voltage of the HBM circuit with the effective DC voltages of the MOS shows a linear relationship. Using the Laplace transform, the linear relationship is proved. Compared with the existing transient power law model, the improved model reduces the computational complexity under the HBM stress and is easier to predict the MOS gate oxide breakdown statistically. The proposed model provides an important reference for the evaluation of the reliability of the MOS gate oxide under the impact of HBM.

The Lower-Middle Ordovician carbonate rocks are studied by core observation, thin section observation, geochemical analysis to restore the diagenetic evolution history of the Yubei area, Tarim Basin. Dissolution, dolomitization, silicification and cataclasis are studied and the diagenetic evolution history is divided into four stages. The grained texture dominated limestone in the relative geomorphic high location exposes to the ground and undergoes penecontemporaneous dissolution due to the fluctuation of the sea level. Caves and pores with structural selectivity parallel to the sedimentary bed are generated by the penecontemporaneous dissolution. The dolomitization developed mainly in early diagenetic stage enhances the resistance of carbonates to compaction and pressure solution, which benefits the preservation of early pores and caves. The fractures formed during the Middle-Late Caledonian and Early Hercynian in this stage are mostly closed and filled due to complicated compaction and cementation. Hydrothermal activity in middle diagenetic stage damages the reservoir slightly by the presence of pyrite and dolomite with wavy extinction and saddle structure in the reservoir space. The late diagenetic stage is characterized by the silica and calcareous fluid activity, which fill the early space partially. The development degree of fractures formed during Late Hercynian and Himalayan epoch is weaker than early diagenetic stage. However, the fractures formed during late diagenetic stage keep open due to weak diagenetic transformation and become efficient migration channel and reservoir spaces in Yubei area.

Based on the existing equivalent formula of the transmission line pulse (TLP) and IEC 61000-4-2 stresses, the authors propose an analysis method of the system-level model with TLP stress as an input. Compared with the traditional analysis method under system-level IEC stress, the proposed method solves the issue that the calculation of the residual energy flowing into the device under test (DUT) is not accurate enough. Meanwhile, the prediction ability for the failure of the DUT is promoted. This work predicts the failure of the DUT under the mentioned two stresses through SPICE simulation. Furthermore, this work shows the validation through the measured results of the relevant printed circuit boards (PCBs), which confirms the promotion of the aforesaid prediction ability.