MINORITY CARRIER LIFETIME IN ION-IMPLANTED AND ANNEALED SILICON

Abstract
Results are presented of an investigation to determine whether minority carrier lifetime within ion‐implanted layers can be restored to preirradiation levels by annealing. Reverse‐recovery measurements were conducted on diffused diodes damaged on the low‐doped side by light doses of carbon. The results show that practically complete recovery can be obtained, but annealing beyond the 400°C range associated with light‐dose lattice reordering to as high as 600–650°C is required.