Patent ID: 7952144
Filing Date: 2011-05-31
Classification: H01L

Abstract:
1. A semiconductor device, comprising: a main field effect transistor (FET) including a source and a gate terminal; one or more sense FETs, each sense FET including a source and a gate; a common gate metal electrically connected to the gate of the main FET and the gate of the one or more sense FETs; an electrical isolation between the main FET and the one or more sense FETs, wherein the main FET and the one or more sense FETs and the electrical isolation are formed in a common substrate, wherein the one or more sense FETs are built inside an active area of the main FET; a sense FET source metal electrically connected to the one or more sense FETs; and a sense pad electrically connected to the sense FET source metal, wherein the sense FET source metal and sense pad extend beyond the active area containing the one or more sense FETs.