a second conductive type second source, which is formed beneath the upper surface in {HEAD ~ the body region} at a side of {TAIL ~ the second gate}, wherein the second source and the first source are electrically connected with each other; and 
a second conductive type second source , which is formed beneath the upper surface in { HEAD ~ the body region } at a side of { TAIL ~ the second gate } , wherein the second source and the first source are electrically connected with each other ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH