METHOD FOR DISCRIMINATING DEFECTIVE CHIPS ON A MEMORY MODULE

摘要

PURPOSE: A defective chip discrimination method is provided to make an easy analysis of defective chips on a memory module by adding signature fuses to data pins. CONSTITUTION: The method is adapted to a memory module where plural memory chip are located in parallel, write enable pins of the respective memory chips are shared, and data pins thereof are coupled individually. The method includes supplying currents the data pins of the chips individually, detecting currents on output terminals of the chips, and comparing the output currents with predetermined reference currents.