A semiconductor device which can prevent peeling off of a gate electrode is provided. The cartridge case and the projectile cooperate with a rearwardly facing abutment surface of the chamber to confine the sabot which has an forwardly facing bearing surface coaxially surrounding a portion of the projectile and in abutting engagement with the abutment surface. A cage is disposed above the base and has an upper portion surrounding the cutting assembly. A computer system can adjust the time to optimize a measure of performance.