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The above pcb is a 3L board with blind hole. The surface treatment is ENIG (Electroless Nickel/ Immersion Gold). The min line width is 0.1mm and the min line gap is 0.127mm. This board uses amber cover film and white silkscreen.
Product Feature And Application
The board is the asymmetric structure, which will make the lamination much difficult. It is used for consumer electronics. This board uses two kinds of stiffener: FR4 and metal. The EMI is needed for this pcb. The base copper weight is 12um, and the plating copper thickness is 7um. The below stackup can show much more details.
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