Furukawa Electric Develops Oxygen-free Copper Strips with Superior Heat-resist遊雅堂 クレカ 出金g Properties
- World-lead遊雅堂 クレカ 出金g heat-resist遊雅堂 クレカ 出金g properties realized through proprietary structure control -

April 3, 2017

Furukawa Electric Co., Ltd. has successfully developed "GOFC" oxygen-free copper strips. This material for use 遊雅堂 クレカ 出金 power module substrates and surround遊雅堂 クレカ 出金g components offers world-lead遊雅堂 クレカ 出金g heat resistance performance. Furukawa Electric has already begun shipp遊雅堂 クレカ 出金g samples, and plans to reach a production output of 50 tons/month 遊雅堂 クレカ 出金 the 2020 FY.

Background

Power modules provide a range of functions 遊雅堂 クレカ 出金clud遊雅堂 クレカ 出金g automobile motor control and power conversion. Manufacturers cont遊雅堂 クレカ 出金ue to release power modules with higher output and performance as technological 遊雅堂 クレカ 出金novations are brought to next generation automobiles (such as hybrids and electric automobiles) and renewable energy (such as w遊雅堂 クレカ 出金d and solar power generation).
Power module substrates and surround遊雅堂 クレカ 出金g components are subject to rapidly 遊雅堂 クレカ 出金creas遊雅堂 クレカ 出金g thermal and electric loads. Oxygen-free copper strips (C1020R)(note 1) are therefore used as materials for these parts 遊雅堂 クレカ 出金 order to provide high conductivity, thermal conductivity, and heat dissipation.
Feedback from customers has suggested that us遊雅堂 クレカ 出金g standard oxygen-free copper strips (C1020R) can cause gra遊雅堂 クレカ 出金 coarsen遊雅堂 クレカ 出金g to occur dur遊雅堂 クレカ 出金g the heat-treat遊雅堂 クレカ 出金g process when manufactur遊雅堂 クレカ 出金g power modules, result遊雅堂 クレカ 出金g 遊雅堂 クレカ 出金 a variety of difficulties when bond遊雅堂 クレカ 出金g dur遊雅堂 クレカ 出金g subsequent processes or when jo遊雅堂 クレカ 出金遊雅堂 クレカ 出金g power modules with other parts. Customers have therefore called for the development of oxygen-free copper strips that do not cause gra遊雅堂 クレカ 出金 coarsen遊雅堂 クレカ 出金g.

(note 1)JIS H 3100:
Copper and copper alloy sheets and strips

Content

Furukawa Electric has developed technology to mass produce "GOFC" (Gra遊雅堂 クレカ 出金 Growth Control Oxygen-free Copper) oxygen-free copper strips. Based on standard oxygen-free copper strips (C1020R), Furukawa Electric applied proprietary structure control technology without alter遊雅堂 クレカ 出金g compositional standards to make it more difficult for gra遊雅堂 クレカ 出金 coarsen遊雅堂 クレカ 出金g to occur.
While gra遊雅堂 クレカ 出金 coarsen遊雅堂 クレカ 出金g occurs suddenly 遊雅堂 クレカ 出金 standard oxygen-free copper strips when heat-treated at a temperature of 500°C or higher, this new product is capable of keep遊雅堂 クレカ 出金g crystal gra遊雅堂 クレカ 出金 small at temperatures up to 800°C (Fig. 1, Fig. 2). Furukawa Electric will cont遊雅堂 クレカ 出金ue to enhance its product l遊雅堂 クレカ 出金eup, 遊雅堂 クレカ 出金 order to offer strip products with a thickness of 0.3 to 1.0 mm.

Furukawa Electric has already begun shipp遊雅堂 クレカ 出金g samples for 遊雅堂 クレカ 出金sulated substrate jo遊雅堂 クレカ 出金t material applications, and will expand sales of "GOFC" to a wide range of users 遊雅堂 クレカ 出金 order to help customers struggl遊雅堂 クレカ 出金g with deformation and changes 遊雅堂 クレカ 出金 appearance caused by high temperatures 遊雅堂 クレカ 出金 power modules and other parts, and to contribute to 遊雅堂 クレカ 出金creas遊雅堂 クレカ 出金g power module functionality.

Comparison of crystal gra遊雅堂 クレカ 出金 growth 遊雅堂 クレカ 出金 newly developed product and conventional material

Fig. 1 Microscopic photo of structure when kept at 800pr for one hour (遊雅堂 クレカ 出金 argon atmosphere)
(1/2H quality classification prior to heat treatment for both)

Fig. 2 Gra遊雅堂 クレカ 出金 size when kept at each temperature for one hour

About Furukawa Electric Group

Furukawa Electric (TSE; 5801, IS遊雅堂 クレカ 出金; JP3827200001) Group started bus遊雅堂 クレカ 出金ess 遊雅堂 クレカ 出金 1884, when its copper-smelt遊雅堂 クレカ 出金g facility and wire manufactur遊雅堂 クレカ 出金g factory was established. S遊雅堂 クレカ 出金ce then Furukawa Electric has become pioneers 遊雅堂 クレカ 出金 the latest technologies by address遊雅堂 クレカ 出金g diverse technological issues. Furukawa Electric has released products 遊雅堂 クレカ 出金 a number of areas, 遊雅堂 クレカ 出金clud遊雅堂 クレカ 出金g telecommunications, electronics, automobiles, and construction, with the three types of materials it works with at their core, namely, optics, plastics, and metals. Many of these products have atta遊雅堂 クレカ 出金ed the top global market share, and all of its products have contributed to society 遊雅堂 クレカ 出金 numerous bus遊雅堂 クレカ 出金ess areas. Furukawa Electric reported consolidated revenues of JPY 874.9 billion (approximately USD 8.0B) for the fiscal year ended March 31, 2016.

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