γ transient radiation effects of antifuse-based FPGA delay circuit

This paper depicts in brief the basic information of ACTEL's antifuse-based FPGA(field programmable gate array)and the working theory of FPGA delay circuits. The method of measurement of FPGA delay circuits on Qiangguang Ⅰgenerator is discussed. And some of the results are presented. The analysis shows that γ transient radiation will destroy a signal period state, so, to some extent, there is a possibility of disabled FPGA function. However, as a whole, the performance of FPGA is better than many other CMOS large scale integrated circuit at high γ dose rate.