Housing, method of producing the same, and electronic device including the same

An electronic device, comprising:

• a foldable housing,
• wherein the foldable housing includes:
• a hinge module;
• a first housing connected to the hinge module and including a first surface facing in a first direction, a second surface facing in a direction opposite to the first direction, and a first side member enclosing a first space between the first surface and the second surface;
• and
• a second housing connected to the hinge module and comprising a third surface facing in a second direction, a fourth surface facing in a direction opposite to the second direction, and a second side member enclosing a second space between the third surface and the fourth surface,
• wherein the first housing and the second housing are foldably coupled to each other along the hinge module so as to at least partially face each other in a folded state,
• wherein the first side member comprises:
• a first side surface having a first length;
• a second side surface extended toward the hinge module from the first side surface through a first corner having a first radius of curvature and having a second length smaller than the first length;
• a third side surface extended from the second side surface so as to at least partially coincide with the hinge module through a second corner having a second radius of curvature smaller than the first radius of curvature;
• and
• a processed area extended from the first side surface to the third side surface through the second side surface, and
• wherein a vertical distance between a first boundary line between the processed area and the first surface and a second boundary line between the processed area and the second surface is equal across the first side surface, the second side surface, and/or the third side surface.