Sumitomo Precision Products Co., Ltd.

Ken Koyama

Keiji Miki

Makoto Yoshida

Kenji Shinozaki

With an Al&#x2014;Cu bonded structure, an Ag layer can be remained at the Al&#x2014;Cu bonding interlayer providing ductile deformation behavior and a tensile strength at the bonded interlayer similar to that of the Al base material. This results in superior bonding characteristics. Furthermore, a thin Al&#x2014;Cu bonded structure can be obtained as a result of using the Al&#x2014;Cu dissimilar material bonded section, which has superior workability, as the base material to perform rolling for wall-thickness reduction. The thin Al&#x2014;Cu structure has superior dimensional accuracy and can meet diverse dimensional demands. The structure combines the light weight of Al with its particular heat transfer and heat dissipative characteristics and anti-corrosive properties of Cu, allowing it to meet the compact, thin, light-weight, and high-performance needs of electronic devices. The structure can be widely used in heat exchanges and heat transfer devices.

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Amagasaki, Japan

Ken Koyama