SEMICONDUCTOR DEVICE HAVING CINDUCTIVE PLUG AND METHOD FOR MANUFACTURING THE SAME

摘要

PURPOSE: A semiconductor device and method for manufacturing the same are provided to prevent an electro-migration and localized current crowding by using a conductive plug having a spacer. CONSTITUTION: An interlayer dielectric(42) and an upper conductive layer(54) are sequentially formed on a lower conductive layer(40). A via hole(48) is formed in the interlayer dielectric(42) between the lower and upper conductive layers(40,54). A conductive plug(50) for connecting the upper and lower conductive layers(54,40) is formed in the via hole(48). The conductive plug(50) has protrusion part. The semiconductor device further includes a spacer(52a) formed at both sides of the protrusion part of the conductive plug(50).