File talk:IGBT N-dep symbol (case).svg

Why two emitters?
Why is the diagram drawn with two arrow-heads, which are conventionally used to designate the emitter of a bipolar semiconductor device? As the "upper" electrode is designated collector it should be drawn without the arrow-head. See page 3, figure 3 of http://www.ixys.com/Documents/AppNotes/IXYS_IGBT_Basic_I.pdf 81.136.202.93 (talk) 13:53, 19 February 2014 (UTC)