CARRIER LEAKAGE SUPPRESSION METHOD AND INTEGRATED CIRCUIT INSPECTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a carrier leakage suppression method that can surely and simply suppress carrier leakage caused in an integrated circuit whose final stage bas a double balance mixer is including a differential circuit. SOLUTION: Adjusting the level of an I terminal T2 receiving an I base band signal in a 1st double balance mixer DBM 1 placed at the final stage of the integrated circuit or adjusting a level of a Q terminal T4 receiving a Q base band signal in a 2nd double balance mixer DBM 2 connected in parallel with the 1st double balance mixer DBM 1 placed at the final stage of the integrated circuit can correct the balance of the differential circuit included in the integrated circuit so as to suppress the carrier leakage.