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Desmear Process 除膠渣製程

Desmear Process 除膠渣製程. 恆利肯有限公司 Hurricane chemical Co. Tel: 886-3-2127720 Fax: 886-3-3524476. Desmear 為除膠渣之意 , 主要目的是移除多層板因鑽孔後所留下的膠渣 (smear), 達到內層銅與孔銅導通 , 並防止孔銅拉離 . 除此之外能使孔壁粗化 , 以利後製程化學銅有更好的附著表面 . 除膠渣與後製程一次銅之關係. 原銅. 橫向玻璃纖維. 縱向玻璃纖維. 樹脂. 內層銅. Panel plating ( 一銅 ). 除膠渣流程.

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Bulk Soil Sample, characteristics of the top layer soil.

Bulk Soil Sample, characteristics of the top layer soil. Wavenumber Functional Group Hydroxyl groups (alcohols, phenols, water molecules, clays). Wavenumber Functional Group

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