Well-behaved Ge n+/p shallow junction achieved by plasma immersion ion implantation
2020
Abstract Ge n+/p junctions fabricated by conventional ion implantation (CII) and plasma immersion ion implantation (PIII) are compared in this work. To achieve low junction leakage current, PIII-implanted Ge n+/p junctions require higher annealing temperature to eliminate the Shockley-Read-Hall generation current, which may be contributed to the residual hydrogen and hydrogen-related defects. It is demonstrated that with 500 °C annealing, well-behaved Ge n+/p junction with ultra-shallow junction depth (
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