Abstract:
A process for manufacturing an array of cells, including: implanting, in a body (10) of semiconductor material of a first conductivity type, a common conduction region (11) of the first conductivity type; forming, in the body, above the common conduction region, a plurality of active area regions (12) of a second conductivity type and a first doping level; forming, on top of the body, an insulating layer (21) having first and second openings (27a, 27b); implanting first portions of the active area regions through the first openings (27a) with a doping agent of the first conductivity type, thereby forming, in the active area regions, second conduction regions (14) of the first conductivity type; implanting second portions of the active area regions through the second openings (27b) with a doping agent of the second conductivity type, thereby forming control contact regions (15) of the second conductivity type and a second doping level, higher than the first doping level; forming, on top of the body, a plurality of storage components (3), each storage component having a terminal connected to a respective second conduction region (14).