| 摘要 |
PROBLEM TO BE SOLVED: To provide a protective structure of a component mounted board, which contributes to reduction in cost and the increase in moisture-proof reliability by holding a region to be potted to the minimum necessary area. SOLUTION: In the protective structure of a component mounted substrate, a plurality of electronic components 27, 28, 51, and 52 are mounted on boards 21 and 50, and these electronic components 27, 28, 51, and 52 are coated with specific resins M and N to protect. The electronic components are divided into a group of components 51 and 52 to be potted with epoxy resin M or the like and a group of components 51 and 52 to be coated with the acrylic resin N or the like, and the two groups of components are separately mounted on the boards 21 and 51 respectively. Furthermore, the boards 21 and 50 are also divided into the board 21 for coating which is to be coated and the board 50 for potting which his to be potted.
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