Patent ID: 8845913
Filing Date: 2014-09-30
Classification: C23C,G01N,H01J,H01L,Y10T

Abstract:
1. A method of predicting damage of ion radiation to a fabrication object comprising: a first step of computing, by a processor, an incidence energy and an incidence angle of a given incident ion hitting a fabrication object; a second step of searching, by the processor, for data in one or more databases created in advance, wherein the databases are searched on the basis of at least the incidence energy and the incidence angle of the given incident ion, and include as data entries: a third step of computing, by the processor, a penetration depth of the given incident ion by using a distribution of ion penetration depths found by searching the databases in the second step; a fourth step of computing, by the processor, a penetration location of the given incident ion; a fifth step of computing, by the processor, a quantity of defects caused by the given incident ion by using a distribution of quantities of crystalline defects affecting the fabrication object found by searching the databases in the second step and the penetration depth computed in the third step; repeating the first through fifth steps for a plurality of ions and computing, by the processor, a distribution of defects caused by radiation of the plurality of ions in the fabrication object from the respective quantities of defects caused by the plurality of ions and the respective penetration locations of the plurality of incident ions.