A Particle Detector Based on Pulse Stretching Inverter Chain Monitoring of energetic particles responsible for the soft errors is an important requirement in the design of faulttolerant systems for space missions. In this paper, the use of a customsized CMOS pulse stretching inverter chain as a particle detector is studied. The proposed detector allows for measuring the particle flux in terms of the count rate of induced Single Event Transients (SETs). In contrast to the conventional SRAMbased detectors, the proposed solution is potentially more sensitive to particle strikes, requires simpler processing logic and is more immune to multiple errors and error accumulation. The concept has been evaluated with SPICE simulations for the IHPu0027s 130 nm CMOS technology. The target applications are the selfadaptive multiprocessor systems, where the particle detector can be used to dynamically trigger the faulttolerant mechanisms.

A radiation resistant library based on DICE and faulttolerant delay filtering techniques in CMOS 0.18xcexbcm technology A radiation resistant standard cell library is completed based on SMIC 0.18 xcexbcm technology in this paper. Standard cell library includes combinatorial logic cells and sequential logic cells. SET (Single Event Transient) effect always occurs in combinatorial logic cells, and SEU (Single Event Upset) effect always occurs in sequential logic cells. SEL(Single Event Latchup) and TID(Total Ionizing Dose) effects affect all logic cells. According to radiation effects, logic cells in the standard cell library are designed with harden methods at the circuit level and the layout level. Combination logic cells adopt faulttolerant delay filtering method in circuit level, and sequential logic cells use DICE structure in circuit design. A guard ring has been added to the layout design for the SEL and TID effects. Then physical information and timing information are extracted for all cells, and the library building process is completed. Finally we use EDA tools to verify the availability of the antiradiation library.