OEM prototyping blank pcb
4 layer Custom OEM Prototyping Blank FR4 PCB in 100% E-TEST
Blank pcb specification：
|Thinckness：||1.6mm||Min. line width and space：||4/5.5 mil|
|Min. Hole size：||0.3mm||Surface finishe：||ENIG|
|Copper thickness：||1 OZ||Impedance control ：||Yes|
* The reliable material we use:
We usually use Shengyi S1000-2 for TG 175 to replace the unreliable materials.
We usually use non-conductive resign to ensure the flatness of the holes and surface. For different design, we also provide conductive resign via filled or fill copper for the vias filled.
* The surface finish of the board is ENIG. And the surface is smooth on the green solder mask with white legend. We also provide HASL lead Free, Immersion silver , Immersion Tin , OSP, HARD GOLD, Soft Gold, Gold finger, ENEPIG and Leaded HASL.
* We use the high technology to ensure the 4/5.5 mil Min. line width and space and avoid the problem of short and open.