Product Name: Thick copper board

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Specifications

Layer count：4

Board thickness：3.0mm

Base materials：FR4 S1000-2

Finished size：175*104mm

Surface finish：沉金

Line width/line space：12/12mil

Minimum hole：0.5mm

Solder resist color：Sensitive green

Cu thickness：inner layer 6 OZ outer layer 6 OZ

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Characteristic

Prominent features: the outer layer of copper thickness of 6 OZ, the inner product of copper thickness 6 OZ, commonly used in large power equipment.

Processing difficulties:

1, inside and outside the need to increase the thickness of copper thickness of 2 OZ or more by electroplating method;

2, before pressing the need to fill in the inner layer of resin;

3, the inner and outer layer circuit is difficult to etch;

4, solder resist the need for multiple printing.