Patent ID: 7821000

Claim:
An apparatus, comprising: a crystalline organic semiconducting region that includes polyaromatic molecules; a source electrode of a field-effect transistor and a drain electrode of the field-effect transistor, both electrodes being in contact with said crystalline organic semiconducting region; a gate electrode of the field-effect transistor being located to affect the conductivity of the organic semiconducting region between said source and drain electrodes; and a dielectric layer of a first dielectric being substantially impermeable to oxygen and in contact with said crystalline organic semiconducting region, the organic semiconducting region being located between said dielectric layer and a substrate, the gate electrode being located on said dielectric layer; wherein a portion of said crystalline organic semiconducting region is in contact with a second dielectric via an opening in said dielectric layer, a physical interface being located between the second dielectric and the first dielectric.