酸性水溶液からの銀電析法により表面処理された銅合金リードフレーム材とエポキシ樹脂との密着性向上技術
スポンサーリンク
概要
- 論文の詳細を見る
Adhesion strength between epoxy resin and copper alloy lead-frame was improved using silver layer electrodeposited from acid aqueous solution. Surface roughness of silver layer electrodeposited on copper alloy lead-frame was controlled by the electrodeposition current density. The surface roughness of silver layer electrodeposited from acid aqueous solution was increased up to 2.11 μm, while that electrodeposited from cyanide aqueous solution was around 0.9 μm. The adhesion strength between epoxy resin and copper alloy lead-frame with silver layer was increased to 5.86 MPa with increasing the surface roughness of silver layer up to 1.69 μm. Copper alloy lead-frame with silver layer, which has the surface roughness more than 1.15 μm, showed a conventional level of die bonding and wire bonding properties.
論文 | ランダム
- ラーベの『ローレンツ・シャイベンハルト』とフモール
- C-13-尿素呼気試験法
- 日高地域の観光商品開発について--えりも・広尾を中心として
- いろいろなスピーカ : (2)超指向性音響システムの原理と応用例
- Control of Crystal Size Distribution Using a mL-Scale Continuous Crystallizer Equipped with a High Speed Agitator