Devices including channel materials and passivation materials

A device, comprising:

• a conductive line;
• a passivation material over the conductive line;
• and
• a vertical channel material on sides of the passivation material, a first interface between the vertical channel material and the conductive line extending in a first direction, and a second interface between the vertical channel material and the conductive line extending in a second direction different than the first direction.

A device, comprising:

• a passivation material vertically overlying a conductive line, the passivation material vertically extending below an upper surface of the conductive line;
• a vertical channel material around at least a portion of the passivation material, at least a portion of the vertical channel material directly contacting the conductive line;
• a gate dielectric material around the vertical channel material;
• and
• a gate electrode around the gate dielectric material.