Effect of Humidity on Growth of Oxide Film on Surface of Copper Contacts(Contact Phenomena,<Special Section>Recent Development of Electromechanical Devices (Selected Papers from ICEC2006))
スポンサーリンク
概要
- 論文の詳細を見る
Contact surfaces are exposed to the atmosphere in general applications. Therefore, gases in the atmosphere such as oxygen and H_2O are adsorbed on and react with the contact surface. Products formed on the surface such as copper oxide films degrade contact resistance characteristics. This surface contamination is an important problem for electrical contact applications. The author has studied the effect of humidification on contact resistance characteristics. In this paper, the effect of humidity on the growth of an oxide film on a copper surface was clarified. An increase in the humidity results in a decrease in the thickness, in contrast, a decrease in the humidity increases the thickness linearly. Changes in the oxide film thickness based on the level of humidity were measured by ellipsometry. Surface state changes influenced by humidification were analyzed topo-graphically using a scanning tunneling microscope. The mechanism of the effect of humidity on the film thickness was discussed on the basis of the deduction of the copper oxide film by H_2 from the adsorbed H_2O. Moreover, the changes in contact resistance levels for both static and sliding contacts due to humidity were measured, and a dependence on humidity was found.
- 社団法人電子情報通信学会の論文
- 2007-07-01
著者
-
TAMAI Terutaka
Mie University, Graduate School of Engineering, Vehicle Network Technology Laboratory
-
Tamai Terutaka
Mie Univ.
-
Tamai Terutaka
Mie University Graduate School Of Engineering Vehicle Network Technology Laboratory
関連論文
- Study of Fretting Corrosion in Early Stage
- Frequency Influencing of Fretting Corrosion of Tin Plated Contacts(Session 1 -Fretting-)
- Growth of Oxide Film on the Tin Plated Surface of Connector Contacts and Its effect Contact Resistance Characteristic
- The mechanism of a detailed surface transformation of fretting corrosion
- Influence of Fretting Wear on Lifetime of Tin Plated Connectors
- Electric Properties and Surface Conditions of Tin Plated Contact with Load
- Micro-Structural Study of Fretting Contact Caused by the Difference of the Tin Plating Thickness
- Contact Resistance Characteristics of Improved Conductive Elastomer Contacts for Contaminated Printed Circuit Board in SO_2 Environment
- Micro-structural Study of Fretting Contact caused by the difference of the tin plating thickness(Session 1 -Fretting-)
- Microscopic Observation of Fretting Corrosion of Tin plated Contacts(Session 1 -Fretting-)
- Numerical Analyses for Contact Resistance due to Constriction Effect of Current Flowing through Multi-Spot Construction
- Contact Mechanisms and Contact Resistance Characteristics of Solid Tin and Plated Tin Contacts Used for Connectors
- Constriction Resistance Behavior of a Tin or Silver Plated Layer for an Electrical Contact
- Constriction resistance analysis of multi-contact spots
- Contact Mechanisms and Contact Resistance Characteristics of Solid Tin and Plated Tin Contacts
- Prediction of resistance of electric contact with plated layer (1) : Theoretical analyses
- Contact Resistance Characteristics of Complex Structure Contacts for Contaminated Printed Circuit Board in SO_2 Environment(Session 6 -Fundamentals-)
- Effect of Humidity on Growth of Oxide Film on Surface of Copper Contacts(Contact Phenomena,Recent Development of Electromechanical Devices (Selected Papers from ICEC2006))
- Deformation of Crystal Morphology in Tin Plated Contact Layer caused by Loading
- Current Density Analysis in Contact Area by Using Light Emission Diode Wafer
- Estimation of Contact Resistance of Tin Plated Contacts by Fretting Corrosion
- Deformation of Crystal Morphology in Tin Plated Contact Layer Caused by Loading
- Deformation of Crystal Morphology in Tin Plated Contact Layer Caused by Loading