Patent ID: 8125248
Filing Date: 2012-02-28
Classification: H01L

Abstract:
1. A semiconductor device comprising: logic circuit elements disposed within a specific region in respective functional blocks of a logic circuit having a plurality of the functional blocks provided one for each functional unit; and a decoupling capacitor disposed in a region within each of the functional blocks at which no logic circuit element is disposed, wherein the functional blocks are partitioned along a first direction into a PMOS region where P-type MOS elements are disposed as the logic circuit elements, and an NMOS region where N-type MOS elements are disposed as the logic circuit elements, and the P-type MOS elements and the N-type MOS elements are disposed so as to face each other along a second direction orthogonal to the first direction, wherein the decoupling capacitor is formed by a gate electrode and an impurity region facing the gate electrode, and a P-type MOS capacitor is disposed in the PMOS region, and an N-type MOS capacitor is disposed in the NMOS region, wherein, in a facing portion of the P-type MOS capacitor to an impurity region of one of the P-type MOS elements, the gate electrode constituting the P-type MOS capacitor is formed so as to project out further to the P-type MOS element side than the impurity region facing the gate electrode, wherein, in a facing portion of the P-type MOS capacitor to the gate electrode of the P-type MOS element, the impurity region facing the gate electrode constituting the P-type MOS capacitor is formed so as to project out further to the P-type MOS element side than the gate electrode, wherein, in a facing portion of the N-type MOS capacitor to an impurity region of one of the N-type MOS elements, the gate electrode constituting the N-type MOS capacitor is formed so as to project out further to the N-type MOS element side than the impurity region facing the gate electrode, and wherein, in a facing portion of the N-type MOS capacitor to the gate electrode of the N-type MOS element, the impurity region facing the gate electrode constituting the N-type MOS capacitor is formed so as to project out further to the N-type MOS element side than the gate electrode.