"Missed that of the rad effects, what happened? Isn't every chip mfg subject to the same problem?"Hi Cor,No, I'm talking of critiques specifically made this spring of SRAM based FPGA's wrt susceptibility of soft and to lesser extent hard errors from even terrestrial exposure to neutrons. Actel seized the opportunity to contrast their fused technology as being more robust. At the time I read several articles about it from EE journals. Here's a few links:http://www.electronicstalk.com/news/act/act175.htmlEEtimes.com, this was the 1st article I read on the topic:http://www.eetimes.com/showArticle.jhtml?articleID=18901862It was the EETimes headline at the time.Others:http://www.eeproductcenter.com/pld-fpga/brief/showArticle.jhtml?articleID=20800124Xilinx App notes:http://www.xilinx.com/appnotes/FPGA_NSREC98.pdfArticle with ref to Xilinx rebuttal:http://www.electronicsnews.com.au/articles/c9/0c01fec9.aspPretty interesting IMO. I'm not judging the importance of any of this - just noting that it wasn't exactly good press for Xilinx and got me thinking, as an implementer, that I might need to consider such issues in the future.Regards,B
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