Changing method for function of integrated circuit

Abstract

PURPOSE:To change the function in the same process as the writting of data into a memory cell by a method wherein another circuit, a function thereof can be changed, is formed previously, and circuits are interrupted by one mask and the function is changed. CONSTITUTION:The circuit having another function and circuits A-E, which can be used in common with another function, are shaped previously into the integrated circuit having the read only memory function manufactured through a lighography method, and the function and the arrangement of signal terminals are altered through the interruption of broken line section circuits or the connection of broken line sections to full line sections by the same mask as a mask writing data to the memory cell when manfacturing a ROM.

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Patent Citations (2)

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Cited By (1)

    Publication numberPublication dateAssigneeTitle
    JP-S5999759-AJune 08, 1984Nec CorpIntegrated circuit