Disclosed is a preferred mold design for producing plastic, molded preforms, which may be blow-molded into a container of a final, desired shape. A stroke limiting device limits the penetration stroke of the brake wedge and controls the braking force in dependence on the retardation value of the load receiving portion of the elevator. A first interlayer dielectric including a contact hole which includes a first region and second regions Spacer layers are formed on both sides of the gate stack and a portion of the second region.