| 摘要 |
PROBLEM TO BE SOLVED: To increase sufficiently a bonding strength between a first member and a second member while avoiding melt and decomposition of a design layer when the design layer intervenes between the first member and the second member.SOLUTION: The method comprises: a first laser beam irradiation of bonding an intermediate member 40 for laser bonding to a second member 20 by irradiating with a laser beam after overlapping the inter mediate member 40 for laser bonding for bonding the first and second members 10, 20 on the second member 20 to heat the intermediate member 40 for laser bonding; and a second laser beam irradiation of irradiating with a laser beam toward a design layer 30 after overlapping the first member 10 on the intermediate member 40 for laser bonding for heating the design layer 30 up to a predetermined temperature not exceeding a melting temperature and a decomposition temperature of the design layer 30, thereby the intermediate member 40 for laser bonding is heated with heat of the design layer 30 to bond the first and second members 10, 20. |
