http://www.pythonclub.org/ 2026-05-02T22:24:39+00:00 http://www.pythonclub.org/ http://www.pythonclub.org/lib/tpl/dokuwiki/images/favicon.ico text/html 2016-11-10T05:37:55+00:00 http://www.pythonclub.org/vlsi/basic/fail?rev=1478756275&do=diff FITS Failures in Time Failure In Time (FIT) method of specifying component reliability. The FIT rate is defined as the expected number of component failures per 10^9 (ten to the ninth power, or 1,000,000,000) hours. The FIT rate can be converted immediately to the MTBF (Mean Time Between Failures) in hours as MTBF = 10^9/FIT. text/html 2010-06-02T01:18:50+00:00 http://www.pythonclub.org/vlsi/basic/unate?rev=1275441530&do=diff Unate Defination of Unateness Unateness is a timing-sense attribute. The timing_sense attribute describes the way an input pin logically affects an output pin. The Design Compiler tool's timing analyzer uses this attribute to track the polarity transition of an element during path analysis.