Patent ID: 7198977

Claim:
A process for fabricating a thin film semiconductor device, comprising, not necessarily in the following order, the steps of: (a) depositing, onto a substrate, a thin film of n-channel organic semiconductor material that comprises an N,N′-di(arylalkyl)-substituted perylene-based tetracarboxylic diimide compound having a substituted or unsubstituted carbocyclic aromatic ring system attached to each imide nitrogen atom through a divalent hydrocarbon group, wherein at least one of the carbocyclic aromatic ring systems is substituted with at least one electron donating organic group, such that the n-channel organic semiconductor material exhibits a field effect electron mobility that is greater than 0.01 cm 2 /Vs; (b) forming a spaced apart source electrode and drain electrode, wherein the source electrode and the drain electrode are separated by, and electrically connected with, the n-channel organic semiconductor material; and (c) forming a gate electrode spaced apart from the n-channel organic semiconductor material.