MANUFACTURE OF ELECTRONIC CIRCUIT BOARD

摘要

Fabrication of an electronic circuit board is carried out by forming a predetermined number of resistors having various resistance based on a circuit design stored in a memory on a nonconductive substrate and dividing the substrate into discrete resistors, then mounting the discrete resistors on a circuit board and operation characteristic. When some resistors having resistances which are not suitable to obtain a predetermined opration characteistics exist in the resistors, the resistances are corrected, and an electronic circuit board having corrected accurate electric constants is obtained. Complete electronic circuit boards are fabricated by repetition of the respective steps.