0001095811-01-501200 DEF 14A 1 20010516 20010412 CADENCE DESIGN SYSTEMS INC 0000813672 7372 770148231 DE 0102 DEF 14A 34 001-10606 1601175 2655 SEELY ROAD BLDG 5 SAN JOSE CA 95134 4089431234 555 RIVER OAKS PARKWAY SAN JOSE CA 95134 ECAD INC /DE/ 19880609 DEF 14A 1 f70470dedef14a.txt DEFINITIVE PROXY STATEMENT