Patent ID: 6071791
Filing Date: 2000-06-06
Classification: H01L

Abstract:
A method of increasing the radiation hardness of a microelectronic device, said device including a silicon substrate, an active silicon layer, and an oxide layer, said method including the steps of:implanting, at an energy needed for ion implantation, a dopant ion selected from the group consisting of Al, As, B, N, Ge, and Si ions into said oxide layer while exposing said active silicon layer to said dopant ions at said ion implantation energy;annealing said implanted device at a temperature of from about 800.degree. C. to below the melting point of silicon;said implanting step being performed at a dose selected so that any damage to said active silicon layer caused by said implantation is repaired during said annealing step and so that said implanting step causes said annealed device to have a significantly increased radiation hardness.