0000950134-09-010695 8-K 1 20090513 5.02 8.01 20090514 20090514 CADENCE DESIGN SYSTEMS INC 0000813672 7372 770148231 DE 1229 8-K 34 001-10606 09826846 2655 SEELY ROAD BLDG 5 SAN JOSE CA 95134 4089431234 555 RIVER OAKS PARKWAY SAN JOSE CA 95134 ECAD INC /DE/ 19880609 8-K 1 f52513e8vk.htm FORM 8-K