Olona-Layer PCB tọka si tejede Circuit ọkọ ni o ni diẹ ẹ sii ju meji Ejò fẹlẹfẹlẹ, gẹgẹ bi awọn 4 Layer pcb, 6L, 8L, 10L, 12L, bbl Bi imo imudarasi, eniyan le fi siwaju ati siwaju sii Ejò fẹlẹfẹlẹ lori kanna ọkọ. Lọwọlọwọ, a le gbe awọn 20L-32L FR4 PCB.
Nipa eto yii, ẹlẹrọ le fi itọpa sori awọn ipele oriṣiriṣi fun idi oriṣiriṣi, gẹgẹbi awọn fẹlẹfẹlẹ fun agbara, fun gbigbe ifihan agbara, fun aabo EMI, fun apejọ awọn paati, ati bẹbẹ lọ. Lati yago fun awọn ipele ti o pọ ju, Ti a sin Nipasẹ tabi Afọju nipasẹ yoo jẹ apẹrẹ ni PCB olona-Layer. Fun igbimọ diẹ sii ju awọn fẹlẹfẹlẹ 8, ohun elo Tg FR4 giga yoo jẹ olokiki ju Tg FR4 deede lọ.
Diẹ fẹlẹfẹlẹ o jẹ, eka sii& nira iṣelọpọ yoo jẹ, ati diẹ gbowolori iye owo yoo jẹ. Akoko asiwaju ti PCB pupọ-Layer yatọ si ọkan deede, jọwọ kan si wa fun akoko asiwaju gangan.