A semiconductor integrated circuit includes: a first flip-flop, a combined circuit and a second flip-flop that form a critical path; a first delay circuit and a third flip-flop that are provided in the post-stage of the combined circuit; a second delay circuit and a fourth flip-flop that are provided...http://www.google.com.tw/patents/US7782125?utm_source=gb-gplus-share專利 US7782125 - Semiconductor integrated circuit
