A simple Flash memory cell model for transient circuit simulation
A simple Flash memory cell model for circuit simulation is presented. The proposed model gives an excellent fitting of dc and transient data and does not require additional simulation time comparing with that of a MOSFET transistor. Effective control-gate voltage method and ideal current-mirror technique are introduced to calculate floating-gate voltage. These allow macro modeling of a Flash memory cell in a circuit simulator.
A SPICE-Like 2T-FLOTOX Core-Cell Model for Defect Injection and Faulty Behavior Prediction in eFlash
The embedded Flash technology can be subject to complex defects creating functional faults. In this paper, we describe the different steps in the electrical modeling of 2T-FLOTOX core-cells for a good understanding of failure mechanisms. At first, we present a first order electrical model of 2T-FLOTOX core-cells which is characterized and compared with silicon data measurements based on the ATMEL 0.15 µm eFlash technology. Next, we propose a study of resistive defect injections in eFlash memories to show the interest of the proposed simulation model. At the end of the paper, a table summarizes the functional fault models for different resistive defect configurations and experimental set-ups. According to these first results and with additional analysis on actual defects presented in [3] we are then able to enhance existing test solutions for eFlash testing.
Frequency selective surface design for blinds applications
In this paper, the reconfigurable blind structure with frequency selective surfaces(FSS) for the building applications are presented. Frequency transmission characteristics for different angles of the proposed blind-FSSs are investigated and verified through simulation and measurement. The simulation results show that we can implement the reconfigurable blind-FSS for multiband wireless applications. To verify the proposed paper, two kinds of blind-FSSs, crossed dipole FSS and circular ring FSS are fabricated and measurements are performed for different angles. The proposed structure in this paper which is very simple, can be easily applied to any planar surface for wireless security applications at low cost.