Nekuvandudzwa kwePCB tekinoroji uye kuwedzera kwevatengi kudiwa kwekukurumidza uye zvakachinja kubva kune bhodhi mbiri kune bhodhi neyechina, nhanhatu kusvika kune gumi kusvika pamakumi matatu kusvika makumi matatu ematunhu e dielectric uye conders. . Sei uchiwedzera huwandu hwezviyero? Kuve nezvimwe zviyero kunogona kuwedzera simba rekuparadzira redunhu, kuderedza crosstalk yekukanganisa uye tsigiro yakakwirira-kumhanya masaini. Nhamba yezviyero inoshandiswa kune PCB zvinoenderana neshandiso, inoshanda frequency, PIN density, uye chiratidzo cheLayer layer.

Nekutengesa maviri matanda, iyo yepamusoro layer (kureva, layer 1) inoshandiswa sechiratidzo chesignal. Iyo ina-layer stack inoshandisa iyo yepamusoro uye pasi zvikamu (kana iyo 1st uye 4th lager) seyechiratidzo chesignal. Mune ino gadziriso, iyo 2nd uye 3r marita inoshandiswa sevaridzi. Iyo prepreg layer inosunga maviri kana anopfuura maviri-mativi-mativi pamwe uye zviito sechido pakati pezvakagadzirwa pakati pezvikamu. Iyo nhanhatu-layer PCB inowedzera maviri mataira emhangura, uye yechipiri neyechishanu zvimedu zvinoshanda sevarindi. Zvikamu 1, 3, 4, uye 6 kutakura masaini.

Ramba uchienda kumhando yechitanhatu, iyo yemukati dhizaini, zvitatu (kana iri bhodhi yakapetwa kaviri) uye prefreg (pregreg (pregreg (ppreg (ppreg (preg) yakagadziriswa pakati pemapuranga emukati. Sezvo zvinhu zvekutanga zvisina kurapwa zvizere, izvo zvinyorwa zvakapfava kupfuura zvinhu zvakadzama. Iyo PCB inogadzira maitiro inoshanda kupisa uye kumanikidzwa kune ese masisitimu uye inonyungudika prepreg uye core kuti zvigadzikiswe zvinogona kusungwa pamwechete.

Multilayer mabhodhi anowedzera mamwe madonhwe emhangura uye dielectric marares kune stack. Mune masere-sere-layer PCB, zvinomwe zvemukati mitsara ye dielelectric glue the mana planar zviyero uye izvo zvina zviratidzo zvechiratidzo pamwechete. Gumi kusvika gumi nemaviri-denderedzwa mabhodhi anowedzera huwandu hwechikafu chemari, chengetedza mana planar zvikamu, uye uwedzere huwandu hwemaganho chiratidzo.