Patent ID: 8193601

Claim:
A flexible sensor array, comprising: a flexible substrate; a gate contact disposed on the substrate; a gate insulator disposed on the gate contact; a semiconductor island disposed on the gate insulator; a first contact structure disposed on the semiconductor island, the first contact structure having a first contact layer disposed on the semiconductor island and a first conductive contact disposed on the contact layer; a second contact structure disposed on the semiconductor island, the second contact structure having a second contact layer disposed on the semiconductor island, a second conductive contact disposed on the second contact layer, and a first sensor semiconductor layer disposed on the second contact layer; an encapsulation layer covering and separating the first and second contact structures, and covering the semiconductor island; an opening in the encapsulation layer exposing the first sensor semiconductor layer of the second contact structure; a second sensor semiconductor layer formed in the opening and extending over the encapsulation layer; and a third sensor semiconductor layer formed on the second sensor semiconductor layer.