Title:
CORROSION-RESISTANT ELECTRONIC SUBSTRATE AND CORROSIVE GAS BLOCKING COATING COMPOSITION USED FOR THE SAME
Document Type and Number:
Japanese Patent JP2019197747
Kind Code:
A
Abstract:
To provide a corrosion-resistant electronic substrate that improves corrosion resistance by blocking a corrosive gas, such as a hydrogen sulfide gas, and a corrosive gas blocking coating composition for forming a coating layer of the corrosion-resistant electronic substrate.SOLUTION: A corrosion-resistant electronic substrate 1 is obtained by forming a coating layer 4 on the entire surface or part of a substrate body 3 after an electronic component 2 is constructed thereon, and covering a conductive metal portion 20 including electrodes 21 of the electronic component 2 with the coating layer 4, and a measured value of the free volume radius of the coating layer 4 after curing measured by the positron annihilation lifetime method is 0.27 nm or less (not including 0). A corrosive gas blocking coating composition is a coating composition for forming the coating layer 4, and containing a resin composition in which a measured value of the free volume radius of the coating layer 4 after curing measured by the positron annihilation lifetime method is 0.27 nm or less (not including 0), and a solvent therefor.SELECTED DRAWING: Figure 1
Inventors:
HAGISAWA TAKUMI
NEGISHI ATSUHIKO
NEGISHI ATSUHIKO
Application Number:
JP2016165445A
Publication Date:
November 14, 2019
Filing Date:
August 26, 2016
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO
International Classes:
H05K3/28; B32B27/00; C09D5/08; C09D7/40; C09D167/00; C09D177/00; C09D201/00
Attorney, Agent or Firm:
Patent Business Corporation Ark Patent Office