0001181467-04-000003 5 1 20031231 20040213 CADENCE DESIGN SYSTEMS INC 0000813672 7372 770148231 DE 0102 2655 SEELY ROAD BLDG 5 SAN JOSE CA 95134 4089431234 555 RIVER OAKS PARKWAY SAN JOSE CA 95134 ECAD INC /DE/ 19880609 BINGHAM H RAYMOND 0001181467 5 34 001-10606 04597906 2655 SEALY AVE. SAN JOSE CA 95134 4089431234 2655 SEELY AVE SAN JOSE CA 95134 5 1 edgar.xml PRIMARY DOCUMENT