Method of producing electroconductive substrate, electronic device and display device

A method of producing an electronic device including an electroconductive substrate which includes a base material, and an electroconductive pattern layer disposed on one main surface side of the base material, and an electronic component, the method comprising:

• a step of forming a trench including a bottom surface to which a foundation layer is exposed, and a lateral surface which includes a surface of a trench formation layer according to an imprint method including pushing a mold including a convex portion into the trench formation layer formed on the foundation layer which is formed on the base material;
• a step of adsorbing a catalyst on the foundation layer which is exposed to the bottom surface of the trench;
• a step of forming the electroconductive pattern layer which includes metal plating and fills the trench, by growing the metal plating from the foundation layer on which the catalyst is adsorbed;
• and
• a step of mounting the electronic component on the electroconductive substrate including the base material and the electroconductive pattern layer.

A method of producing a display device including an electroconductive substrate which includes a base material, and an electroconductive pattern layer disposed on one main surface side of the base material, and a light emitting element, the method comprising:

• a step of forming a trench including a bottom surface to which a foundation layer is exposed, and a lateral surface which includes a surface of a trench formation layer according to an imprint method including pushing a mold including a convex portion into the trench formation layer formed on the foundation layer which is formed on the base material;
• a step of adsorbing a catalyst on the foundation layer which is exposed to the bottom surface of the trench;
• a step of forming the electroconductive pattern layer which includes metal plating and fills the trench, by growing the metal plating from the foundation layer on which the catalyst is adsorbed;
• and
• a step of mounting the light emitting element on the electroconductive substrate including the base material and the electroconductive pattern layer.