公开(公告)号：US20140338961A1

公开(公告)日：2014-11-20

申请号：US14360836

申请日：2012-11-26

Applicant: SNU R&DB FOUNDATION ,  KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Young Chang Joo ,  In Suk Choi ,  Myoung Woon Moon ,  Byoung Joon Kim ,  Min Suk Jung

IPC: H05K1/02 ,  H05K3/00 ,  H05K1/11

CPC classification number: H05K1/09 ,  H05K3/146 ,  H05K2201/0154 ,  H05K2201/0969

Abstract: In the present invention, a copper electrode having a nanohole structure is prepared by using a polymer substrate in the form of nanopillars in order to avoid fatigue fracture that causes degradation of electrical and mechanical properties of a flexible electrode during repetitive bending of a typical metal electrode. The nanohole structure may annihilate dislocations to suppress the initiation of fracture and may blunt crack tips to delay the propagation of damage. Therefore, the nanohole electrode exhibits very small changes in electrical resistance during a bending fatigue test.

Abstract translation: 在本发明中，通过使用纳米柱形式的聚合物基材来制备具有纳米孔结构的铜电极，以避免在典型金属电极的重复弯曲过程中导致柔性电极的电气和机械性能降低的疲劳断裂 。 纳米孔结构可以消除位错以抑制断裂的开始，并且可能钝化裂纹尖端以延迟损伤的传播。 因此，在弯曲疲劳试验中，纳米孔电极的电阻变化很小。

公开(公告)号：US09510445B2

公开(公告)日：2016-11-29

申请号：US14360836

申请日：2012-11-26

Applicant: SNU R&DB FOUNDATION ,  KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Young Chang Joo ,  In Suk Choi ,  Myoung Woon Moon ,  Byoung Joon Kim ,  Min Suk Jung

IPC: B05D5/00 ,  H05K1/09 ,  H05K3/14

CPC classification number: H05K1/09 ,  H05K3/146 ,  H05K2201/0154 ,  H05K2201/0969

Abstract: In the present invention, a copper electrode having a nanohole structure is prepared by using a polymer substrate in the form of nanopillars in order to avoid fatigue fracture that causes degradation of electrical and mechanical properties of a flexible electrode during repetitive bending of a typical metal electrode. The nanohole structure may annihilate dislocations to suppress the initiation of fracture and may blunt crack tips to delay the propagation of damage. Therefore, the nanohole electrode exhibits very small changes in electrical resistance during a bending fatigue test.

Abstract translation: 在本发明中，通过使用纳米柱形式的聚合物基材来制备具有纳米孔结构的铜电极，以避免在典型金属电极的重复弯曲过程中导致柔性电极的电气和机械性能降低的疲劳断裂 。 纳米孔结构可以消除位错以抑制断裂的开始，并且可能钝化裂纹尖端以延迟损伤的传播。 因此，在弯曲疲劳试验中，纳米孔电极的电阻变化很小。