Patent ID: 6921679

Claim:
A method of fabricating an electronic device, comprising: forming a first electrical contact, a dielectric layer and a second electrical contact, wherein the dielectric layer is located between the first and the second electrical contacts; forming an electrically insulating layer over the dielectric layer and the first electrical contact; exposing the second electrical contact, the dielectric layer, the first electrical contact and a first portion of the electrically insulating layer to radiation from the side of the first electrical contact; removing a second portion of the electrically insulating layer that was not irradiated by the radiation; providing a semiconductor material over a portion of the dielectric layer that is not under the electrically insulating layer; forming a mask over the second electrical contact and a portion of the semiconductor material; forming a third electrical contact over at least a portion of the electrically insulating layer, the semiconductor material and the mask; forming a fourth electrical contact over at least a portion of the third electrical contact and the electrically insulating layer; and removing the mask.