Hi,
I'm currently trying to reverse the NE556 from that
picture and I don't understand some layout design.
Here is a simple npn transistor that I identified:
![](http://i.imgur.com/X53yI5k.png)
![](http://i.imgur.com/T7gL9if.png)
And this one looks pretty weird for me.
![](http://i.imgur.com/TjTUDie.png)
![](http://i.imgur.com/LHxSkTl.png)
If this is npn bjt what a hell is that middle red zone? p+ doped or what?