ST 2STD1665 have quite outstanding hFE of 320 (for a non-darlington 65V power BJT). That makes it very useful for switching applications where you wish to drive it with low voltage (e.g. pin of microcontroller with 1.8V VCC) where N-MOSFET would require external circuitry.
You can see extensive net to stitch thin, high-resistance base with metal. Emitter resistance could have been slightly lower with different pad placement (closer to center and on the diagonal) but apparently it’s not a major performance-limiting factor.
Eink, E-paper, Think Ink – Collin shares six segments pondering the unusual low-power display technology that somehow still seems a bit sci-fi – http://adafruit.com/thinkink
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