A semiconductor device includes a spacer adjacent a gate structure. A
protection layer covers oxide portions of the spacer surface such that
subsequent manufacturing operations such as wet oxide etches and strips,
do not produce voids in the spacers. A method for forming the
semiconductor device provides forming a gate structure with adjacent
spacers including an oxide liner beneath a nitride section, then forming
the protection layer over the structure, and removing portions of the
protection layer but leaving other portions of the protection layer
intact to cover and protect underlying oxide portions of the spacer
during subsequent processing such as the formation and removal of a
resist protect oxide (RPO) layer. The protection layer is advantageously
formed of a nitride film and an oxide film and produces a double spacer
effect when partially removed such that only vertical sections remain.