Patent ID: 7743488
Filing Date: 2010-06-29
Classification: H01L,Y10T

Abstract:
1. A manufacturing method for a variable resistive element comprising a variable resistor comprising a variable resistor material provided between a first electrode comprising a first electrode material and a second electrode comprising a second electrode material, the electrical resistance of the variable resistor being variable between a low resistance value and a high resistance value by applying a voltage pulse between the first electrode and the second electrode, said method comprising: carrying out a reduction process on the variable resistor so that the electrical resistance of the variable resistor is increased; wherein carrying out the reduction process comprises carrying out a heat treatment at low temperatures never exceeding 350° C. in a reduction atmosphere including hydrogen, and carrying out the heat treatment comprises providing a material operating as a hydrogen catalyst, and the variable resistor comprises an oxide having a perovskite structure which is represented by any one of the following general formulas: Pr La RE La Gd Nd