Yiziphi izinto ezisetshenziswa kakhulu kuma-prototypes webhodi le-PCB?

Uma kukhulunywa nge-PCB board prototyping, ukukhetha impahla efanele kubalulekile. Izinto ezisetshenziswa kuma-PCB prototypes zingaba nomthelela omkhulu ekusebenzeni, ukuthembeka, nokuqina komkhiqizo wokugcina.Kulokhu okuthunyelwe kwebhulogi, sizohlola ezinye zezinto ezisetshenziswa kakhulu zebhodi le-PCB prototyping futhi sixoxe ngezinzuzo zazo kanye nokubi.

1.FR4:

I-FR4 iyinto esetshenziswa kakhulu kunazo zonke i-PCB board prototyping. Kuyi-epoxy laminate eqiniswe ngengilazi eyaziwa ngezici zayo ezinhle kakhulu zokuvala ugesi. I-FR4 futhi inokumelana nokushisa okuphezulu, okuyenza ifanele izinhlelo zokusebenza ezidinga ukusebenza kwezinga lokushisa eliphezulu.

Enye yezinzuzo ezinkulu ze-FR4 ukusebenza kahle kwayo kwezindleko. Ishibhile uma iqhathaniswa nezinye izinto ezisemakethe. Ukwengeza, i-FR4 inokusimama okuhle kwemishini futhi ingamelana namazinga aphezulu okucindezeleka ngaphandle kokonakala noma ukuphuka.

Nokho, i-FR4 inokulinganiselwa okuthile. Ayilungele izinhlelo zokusebenza ezidinga ukusebenza kwefrikhwensi ephezulu ngenxa yokungaguquguquki kwayo kwe-dielectric ephezulu. Ukwengeza, i-FR4 ayizilungele izinhlelo zokusebenza ezidinga ukulahleka okuphansi kwe-tangent noma isilawuli se-impedance esiqinile.

2. Rogers:

I-Rogers Corporation ingenye inketho ethandwayo ye-PCB board prototyping. Izinto ze-Rogers zaziwa ngezakhiwo zazo ezisebenza kahle kakhulu, okuzenza zifanelekele inhlobonhlobo yezicelo, okuhlanganisa i-aerospace, ezokuxhumana kanye nezimboni zezimoto.

Izinto ze-Rogers zinezakhiwo ezinhle kakhulu zikagesi, kufaka phakathi ukulahleka kwe-dielectric ephansi, ukuhlanekezela kwesignali ephansi kanye nokushisa okuphezulu kwe-thermal. Futhi banokusimama okuhle kobukhulu futhi bangamelana nezimo zemvelo ezinzima.

Kodwa-ke, okubi okuyinhloko kwezinto zeRogers yizindleko zabo eziphezulu. Izinto ze-Rogers zibiza kakhulu kune-FR4, okungaba isici esikhawulelayo kwamanye amaphrojekthi.

3. Ingqikithi yensimbi:

I-Metal Core PCB (MCPCB) iwuhlobo olukhethekile lwe-PCB board prototype esebenzisa umgogodla wensimbi esikhundleni se-epoxy noma i-FR4 njenge-substrate. Umongo wensimbi uhlinzeka ngokukhipha ukushisa okuhle kakhulu, okwenza i-MCPCB ifanelekele izinhlelo zokusebenza ezidinga ama-LED wamandla aphezulu noma izingxenye zikagesi zamandla.

I-MCPCB ijwayele ukusetshenziswa embonini yokukhanyisa, imboni yezimoto kanye nemboni yezogesi zamandla. Bahlinzeka ngokuphathwa okushisayo okungcono uma kuqhathaniswa nama-PCB endabuko, ngaleyo ndlela kukhulise ukwethembeka okuphelele nokuphila isikhathi eside komkhiqizo.

Nokho, i-MCPCB inokungalungi okuthile. Abiza kakhulu kunama-PCB endabuko, futhi umgogodla wensimbi unzima kakhulu ukuwenza ngesikhathi senqubo yokukhiqiza. Ukwengeza, i-MCPCB inokuguquguquka okukhawulelwe futhi ayifanele izinhlelo zokusebenza ezidinga ukugoba noma ukusonteka.

Ngokungeziwe ezintweni ezishiwo ngenhla, kunezinye izinto ezikhethekile ezitholakalayo zokusetshenziswa okuthile. Isibonelo, i-PCB eguquguqukayo isebenzisa ifilimu ye-polyimide noma i-polyester njengento eyisisekelo, evumela i-PCB ukuthi igobe noma igobe. I-Ceramic PCB isebenzisa izinto ze-ceramic njenge-substrate, ene-conductivity enhle kakhulu ye-thermal kanye nokusebenza kwe-high-frequency.

Ngokufigqiwe, ukukhetha impahla efanele yesibonelo sakho sebhodi le-PCB kubalulekile ukuze uzuze ukusebenza kahle, ukwethembeka, nokuqina. I-FR4, i-Rogers, nezinto eziyinhloko zensimbi ezinye zezinketho ezivame kakhulu, ngayinye inezinzuzo zayo kanye nokubi. Cabangela izidingo ezithile zephrojekthi yakho futhi uxhumane nomkhiqizi we-PCB ochwepheshe ukuze uthole izinto ezingcono kakhulu zeprototype yakho ye-PCB.