A tunneling magnetic sensing element includes: a pinned magnetic layer whose direction of magnetization is pinned in one direction; an insulating barrier layer; and a free magnetic layer whose direction of magnetization changes in response to an external magnetic field. A metal coating is provided on the top portion of the outer surface. The measurement device determines the distance to the object, based on the time of flight of the beam from transmission to capture by the measurement device. The panel defines a pair of openings at a lower edge configured to slidably receive the rod of the spring members. A recording sheet having the sizing agent is also provided. Multiple targets, of the same or different materials, may concurrently deposit material on the wafers as the pallet is rotating.