Patent ID: 7985991
Filing Date: 2011-07-26
Classification: H01L,H05K

Abstract:
1. A semiconductor device comprising: a semiconductor substrate with a MOSFET, the semiconductor substrate having a first major surface and a second major surface opposite to and above the first major surface; an electrode for main current of the MOSFET disposed on the first major surface; an electrode for control of the MOSFET disposed on the first major surface; a rear plane electrode of the MOSFET disposed on the second major surface; an external connection terminal electrically connected to the rear plane electrode; a first conductive pattern having a top surface and a bottom surface opposite the top surface, the top surface of the first conductive pattern is formed over the electrode for main current of the MOSFET and connects with the electrode for main current of the MOSFET electrically; and a second conductive pattern having a top surface and a bottom surface opposite the top surface, the top surface of the second conductive pattern is formed over the electrode for control of the MOSFET and connects with the electrode for control of the MOSFET electrically; wherein the external connection terminal contains a first part, a second part and a third part, the first part is positioned over the rear plane electrode, the third part is positioned below the second major surface and the third part is connected via the second part to the first part, and wherein each overlapping part of the bottom surfaces of the first and the second conductive patterns with the semiconductor substrate, in a plan view, is exposed on the first major surface side to be able to solder.