Three-dimensional memory device containing etch-stop structures and self- aligned insulating spacers and method of making the same

In a door hinge device for the vehicle, in the vehicle without a B pillar, as the hinge slider connected to the hinge portion of the door moves in the diagonal direction of the vehicle body along the rail by the driving torque of the motor inside the case, each door may be independently opened or closed while securing the rotation trajectory of the door.