FR4 rigid pcb prototype circuit boards with 3.5 mil min. line width
Fineline pcb specification：
|Layer：||6 layers||Material：||FR4 Hi TG|
|Min. Hole size：||8mil||Surface finish：||ENIG|
|Unit size：||30″*5″||Impedance control：||No|
|IPC standard||IPC2||Vias filling：||No|
|Solder mask：||Green||Leading time：||5 working days|
* We usually use IT 180A or S1000-2 for TG 175 to replace the unreliable materials.
* The surface finish of the board is ENIG. We can also change it to be HASL lead Free , Immersion silver , Immersion Tin, OSP, HARD GOLD, Soft Gold, Gold finger, ENEPIG depending on your need.
* This is long size board with 30″*5″ board size. For the board size, we can make the maximum board size 23″*35″ for the rigid board.
* And the Min line width is 3.5 mil in a 6 layer board as a fine line printed circuit board.