Formation of BPSG surface defects upon exposure to atmosphere is prevented by a plasma treatment method for converting boron andor phosphorus materials separated from silicon near the surface of the doped glass layer to gas phase compounds. A flexible member may be attached to the arms to obtain an extended stroke in a direction perpendicular to the axis of movement of the actuators. The sheath includes an internal volume defining a shape to receive the knife blade. The disambiguated sense is determined utilizing a selection of local disambiguated senses. Selectable placement orders of the plurality of images are determined, based on the specification, and are displayed on the screen.