Implication the semi- soluble junction which possesses with the impedance which possesses

摘要

Includes a matrix of semi-friendly welding if the memory cell includes a semi-friendly welding case with impedance and the blown impedance of each half-friendly welding if the memory cell is not damaged, a programmable read-only memory, programmable read a bit line voltage supply switching circuit for applying a current to the selected bit lines of one word line address decoder for selecting a word line, only memory, intersections of word lines and bit lines which are selected at least method of testing the read only memory further comprises and a program control logic circuit for blowing the semi-friendly welding case of the semi-friendly welding if the memory cells identified by, a programmed or unprogrammed is disclosed that.