Patent ID: 8088644
Filing Date: 2012-01-03
Classification: C23C,G11C,H01L

Abstract:
1. A method of manufacturing a bistable resistance value acquisition device including at least a first metal oxide layer which is made of a metal oxide containing at least two metals, is formed on a substrate, and has a predetermined thickness, a first electrode which is formed on one surface of the first metal oxide layer, and a second electrode which is formed on the other surface of the first metal oxide layer, comprising: a first step of producing a first plasma made of an inert gas and oxygen gas which are supplied at a predetermined composition ratio, applying a negative bias to a target made of at least a first metal a second metal and causing particles generated from the first plasma to collide against the target to cause a sputtering phenomenon, and depositing a material of the target, thereby forming the first metal oxide layer made of a metal oxide containing the first metal, the second metal, and oxygen, wherein the first plasma is an electron cyclotron resonance plasma which is produced by electron cyclotron resonance and receives kinetic energy from a divergent magnetic field, and the substrate is heated to a predetermined temperature, said method further comprising a second step of irradiating a surface of a layer made of the metal oxide with a second plasma made of an inert gas and a reactive gas which are supplied at a predetermined composition ratio, wherein the second plasma is an electron cyclotron resonance plasma which is produced by electron cyclotron resonance and receives kinetic energy from a divergent magnetic field.