在线无码一区二区三区不卡|国产精品爽爽久久久久久竹菊|中文字幕在线无码一区二区三区|中文字幕精品无码一区二区

Application：

Selective organic conducting film (SOC) refers to a layer of conducting polymeric film selectively deposited on the resin and glass fiber of hole wall of circuit board and not deposited on copper surface; the film substitutes conventional chemical copper, and serves for breakover between circuit board layers; a layer of complete copper surface will be deposited quickly on SOC film during plating to enhance inter-layer interconnection. SOC applies to high muliti-layer, FPC and HDI boards.

Advantage introduction：