Electronic device preventing damage to circuit terminal portion and method of manufacturing the same

An electronic device comprising:

• a first substrate on which a thin-film circuit layer is provided on a first face;
• a second substrate;
• a wiring layer which is provided on a second face as a main face of the second substrate;
• and a conductive portion which includes an isotropic conductive material for electrically connecting a terminal portion of the thin-film circuit layer and the wiring layer, wherein the conductive material is film-formed on both the terminal portion and the wiring layer, at least a portion of the wiring layer disposed between the conductive material and the circuit layer, wherein the second substrate has a third face which is located at a side opposite to the second face and a fourth face which is located between the second face and the third face, the fourth face is formed in a tapered shape so as to intersect with the second face at a wide angle and intersect with the third face at an acute angle when seen in the cross section, the first substrate and the second substrate are arranged such that the fourth face is located on the first face, and the conductive material is film-formed along the fourth face.