Semiconductor ROM memory device for storing binary data, has cell with semiconductor electrical connection connecting one of two zones of four active zones, to one of third and fourth zones, based on logic value of binary data in cell

摘要

The device has a cell with 4 active zones (Z1-Z4) mutually isolated within a substrate. An electrically conductive connection (P34) adjacent the substrate connects the zones (Z3, Z4). A semiconductor electrical connection connects one of the zones (Z3, Z4) to one of the zones (Z1, Z2) based on a logic value of a binary data in the cell. A semiconductor electrical isolation isolates the zones (Z3, Z4) from the respective zones (Z1, Z2). The zones (Z1, Z2) are connected to supply voltage and ground, respectively. Independent claims are also included for the following: (1) a method for reading a logic value of a binary data stored in a cell of a memory device (2) a method of programming a binary data in a cell of a memory device.