6 Layers High TG FR4 PCB with Blinded Holes
Board thickness: 1.6mm
Min. hole diameter: 0.3mm
Min. line width: 5.0mil
Min. line distance:4.8mil
Surface finish: Immersion Gold
There are many kinds of PCB plate material, each plate specification is different, its material, price, parameter etc. are also difference.
According to the grade level, from low to high:
94HB, 94VO, 22F, CEM-1, CEM-3, FR-4
The details are as follows:
94HB: common paperboard, without fireproof (the lowest material, punch holes, can not make to power PCB).
94V0: flame retardant paperboard (punching holes).
22F: single-sided half-glass fiberboard (punching holes).
CEM-1: single fiberglass board (must be drilled by computer,cann't punch holes).
CEM-3: double-sided half-glass fiber board (except double-sided paperboard,it is the lowest material for double-sided PCB,simple double sided PCB can use this material, which is 0.8~1.5usd/m2 cheaper than FR-4).
FR-4: double-sided glass fiber board.
1. The grade of flame retardant properties can be divided into four types: 94V-0/V-1/V-2/94-HB
2. Prepreg: 1080=0.0712mm, 2116=0.1143mm, 7628=0.1778mm.
3. FR4, CEM-3 are all for material type, FR4 is glass fiberboard, and CEM3 is composite substrate.
4. Halogen-free is a substrate that does not contain halogen (elements such as fluorine and iodine), as bromine produces toxic gases when burned, it is not environmental.
5. Tg is the transformation temperature of glass, namely melting point.
The circuit board must be withstand flammable and can not be burned at certain temperature,just be soften.At this point, the temperature point is called glass transition temperature(Tg point), which is related to PCB dimensional stability.
Shenzhen Aibixing Industrial is a professional PCB manufacturer for many years, can provide customer one-stop PCB solution for most kinds of circuit board, just contact us freely.
We are one of the leading China manufacturers focusing on FR4 PCB fabrication. If you are interested in our pcb solution for high tg fr4 circuit board, welcome to contact our factory. We're sure to offer you the best quality products on time and excellent one-stop service.