Method of modifying conductive lines of an electronic circuit board and

Abstract

A method of modifying an electronic circuit board by performing disconnection or connection of conductive lines at a specified or an arbitrary position of the conductive lines of the electronic circuit board thereby changing an electric circuit and of completely modifying an open pattern defect of the conductive lines or an insulator layer, and its device, wherein a first energy beam is irradiated to portions of repair terminals 9 and 9' which are intended to connect or disconnect, of conductive lines 5 and 5' in the electronic circuit board thereby removing a protection layer, making windows and exposing the terminals 9 and 9' for connection; a second energy beam is irradiated thereby disconnecting the repair terminals 9 and 9', or a metal piece for connecting is supplied to between the repair terminals 9 and 9' and applying an energy thereto thereby electrically connecting them; and the disconnected or connected windowed portion is locally coated with the insulator layer thereby modifying the conductive lines of the electronic circuit board. Further, windows 311 or 311' is formed in an insulating protection layer 310 on a conductive line connecting portion 308 formed in a couple or a conductive line disconnecting portion 309, a conductive line of the conductive line disconnecting portion is disconnected or a liquid material 312 for connecting conductive lines is supplied to the conductive line connecting portion 308, a metal layer 313 is precipitated by heating the liquid material 312 thereby connecting the conductive line connecting portion 308, and the window 311 or 311' is coated with an organic insulator layer.