Zeziphi izinto eziqhelekileyo ezisetyenziselwa iiprototypes zebhodi yePCB?

Xa kuziwa kwiprototyping yebhodi yePCB, ukukhetha izinto ezifanelekileyo kubalulekile. Izinto ezisetyenziswa kwiiprototypes zePCB zinokuba nempembelelo enkulu ekusebenzeni, ukuthembeka, kunye nokuqina kwemveliso yokugqibela.Kule posi yebhlog, siza kuphonononga ezinye zezona zisetyenziswa zixhaphakileyo izixhobo zokuchwetheza zebhodi yePCB kwaye sixoxe ngezinto eziluncedo nezingeloncedo.

1.FR4:

I-FR4 yeyona nto isetyenziswa kakhulu kwiprototyping yebhodi yePCB. Yiglasi eyomelezwe epoxy laminate eyaziwayo ngeempawu zayo zokugquma umbane. I-FR4 nayo inokumelana nobushushu obuphezulu, iyenza ilungele izicelo ezifuna ukusebenza kobushushu obuphezulu.

Enye yeenzuzo eziphambili zeFR4 kukusebenza kwayo kweendleko. Ixabiso eliphantsi xa lithelekiswa nezinye izinto ezithengiswayo. Ukongeza, i-FR4 inozinzo olufanelekileyo lomatshini kwaye inokumelana namanqanaba aphezulu oxinzelelo ngaphandle kokonakala okanye ukwaphuka.

Nangona kunjalo, iFR4 inemida ethile. Ayizifanelanga izicelo ezifuna ukusebenza kwamaza aphezulu ngenxa yokungaguquguquki kwayo okuphezulu kwe-dielectric. Ukongeza, i-FR4 ayifanelekanga kwizicelo ezifuna i-tangent yelahleko ephantsi okanye ulawulo oluqinileyo lwe-impedance.

2. URogers:

I-Rogers Corporation lolunye ukhetho oludumileyo lwebhodi ye-PCB prototyping. Izinto zeRogers ziyaziwa ngeempawu zazo eziphezulu, ezizenza zilungele uluhlu olubanzi lwezicelo, kubandakanywa i-aerospace, unxibelelwano kunye noshishino lweemoto.

Izinto zeRogers zineempawu ezintle zombane, kubandakanywa ukulahleka kwe-dielectric ephantsi, ukuphazamiseka kwesignali ephantsi kunye ne-thermal conductivity ephezulu. Bakwanazo nozinzo olululo lwe-dimensional kwaye bayakwazi ukumelana neemeko ezirhabaxa zokusingqongileyo.

Nangona kunjalo, eyona nto ingalunganga kwizinto zeRogers ziindleko zabo eziphezulu. Iimathiriyeli zeRogers zibiza kakhulu kune-FR4, enokuthi ibe ngumda kwezinye iiprojekthi.

3. Undoqo wentsimbi:

I-Metal Core PCB (MCPCB) luhlobo olukhethekileyo lweprototype yebhodi ye-PCB esebenzisa isiseko sesinyithi endaweni ye-epoxy okanye i-FR4 njenge-substrate. Undoqo wesinyithi ubonelela ngokutshabalalisa ubushushu obugqwesileyo, okwenza i-MCPCB ilungele izicelo ezifuna ii-LED zamandla aphezulu okanye izixhobo ze-elektroniki zamandla.

I-MCPCB iqhele ukusetyenziswa kushishino lokukhanyisa, ishishini leemoto kunye neshishini lombane lombane. Babonelela ngolawulo olungcono lwe-thermal xa kuthelekiswa neePCB zemveli, ngaloo ndlela benyusa ukuthembeka kunye nokuphila ixesha elide kwemveliso.

Nangona kunjalo, i-MCPCB inezinye izinto ezingalunganga. Ziyabiza kakhulu kune-PCB zemveli, kwaye undoqo wesinyithi unzima kakhulu umatshini ngexesha lenkqubo yokuvelisa. Ukongeza, i-MCPCB inokuguquguquka okulinganiselwe kwaye ayifanelekanga kwizicelo ezifuna ukugoba okanye ukujija.

Ukongeza kwizinto ezikhankanywe ngasentla, kukho ezinye izinto ezikhethekileyo ezifumanekayo kwizicelo ezithile. Ngokomzekelo, i-PCB eguquguqukayo isebenzisa ifilimu ye-polyimide okanye i-polyester njengesiseko sezinto, evumela i-PCB ukuba igobe okanye iguquke. I-Ceramic PCB isebenzisa izinto ze-ceramic njenge-substrate, ene-conductivity egqwesileyo ye-thermal kunye nokusebenza kwe-frequency ephezulu.

Isishwankathelo, ukukhetha imathiriyeli efanelekileyo yeprototype yebhodi yakho yePCB kubalulekile ekufezekiseni ukusebenza kakuhle, ukuthembeka, kunye nokuqina. I-FR4, i-Rogers, kunye nezixhobo ezingundoqo zetsimbi zezinye zezona zikhetho eziqhelekileyo, nganye ineenzuzo zayo kunye nokungalungi. Qwalasela iimfuno ezithile zeprojekthi yakho kwaye udibane nomvelisi we-PCB oyingcali ukuze abone ezona mathiriyeli zibalaseleyo zeprototype yakho yePCB.