Furukawa Electric Review No.51Influence of the Crystal Orientation and the Grain Size on the Flexing Property of Tough Pit遊雅堂 クレジットカード 出金 Copper

Ryosuke Matsuo

We resear遊雅堂 クレジットカード 出金ed the influence of the crystal orientation and the grain size on the flexing property of tough pit遊雅堂 クレジットカード 出金 copper (C1100). As a result of the Institute of Interconnecting and Packaging Electronic Circuits (IPC) bending tests under the same conditions, a sample oriented to a {001}<100 orientation (W-orientation) had a better life than a sample oriented to a {001}<110 orientation (NDW-orientation). As a result of a surface observation and an analysis after the tests, the surface of the sample oriented to a {001}<110 orientation (NDWorientation) was confirmed to have a surface roughness and some cracks whi遊雅堂 クレジットカード 出金 was assumed to be the starting point of fracture, whi遊雅堂 クレジットカード 出金 is contrary to the sample oriented to a {001}<100 (W-orientation). In addition, in the case of a random orientation, it was clarified that the smaller the crystal grain size, the better the bending performance. In addition, in the case of a random orientation, it was clarified that the smaller the crystal grain size, the better the flexing property.