The different material for power boards

[wcz]

Hi all,

does anyone know why mostly power board are designed in single-sided board, material such as FR-1 & CEM-1 ?
why multilayer signal board in material such as FR-4?
reason due to material strength??
pls kindly advise.
thanks a lot.

 

[chenlianyi383]

Re: Power Board

FR4 meas fire-resistant reliability with higher Tg which is stronger than FR1 ,
PCB manufacturesare now uaually requsted to use FR4

 

[wcz]

Power Board

hi Chen,
do u mean now mostly use FR4 on all signal n power board?
as i m working in one pcb company, their power board still using FR1 and CEM1 material..