Further, an end of each of the active electrodes, the end being positioned at the first side, is located closer to the second side from a point on the inclined surface at {HEAD ~ the same depth} as {TAIL ~ a lower end} of the active electrode 
as
Further , an end of each of the active electrodes , the end being positioned at the first side , is located closer to the second side from a point on the inclined surface at { HEAD ~ the same depth } as { TAIL ~ a lower end } of the active electrode
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH