Isiseko sesinyithi seplate yobhedu kunye ne-FR-4 zimbini ezisetyenziswa ngokuqhelekileyo ibhodi yesekethe eprintiweyo (PCB) kwishishini le-elektroniki. Ziyahluke ekubunjweni kwezinto eziphathekayo, iimpawu zokusebenza kunye nemimandla yesicelo. Namhlanje, i-Fastline iya kukunika ucazululo lokuthelekisa ezi zinto zimbini ngokwembono yobuchwephesha:
Isiseko sesinyithi sepleyiti yobhedu: Yimathiriyeli esekwe kwintsimbi ye-PCB, ngokuqhelekileyo isebenzisa i-aluminiyam okanye ubhedu njenge-substrate. Inqaku layo eliphambili kukuqhuba kakuhle kwe-thermal kunye nokukwazi ukutshabalalisa ubushushu, ngoko ke ithandwa kakhulu kwizicelo ezifuna ukuhanjiswa kwe-thermal ephezulu, njengokukhanya kwe-LED kunye nabaguquli bamandla. I-metal substrate inokuqhuba ngokufanelekileyo ubushushu ukusuka kwiindawo ezishushu zePCB ukuya kwibhodi yonke, ngaloo ndlela inciphisa ukwakhiwa kobushushu kunye nokuphucula ukusebenza ngokubanzi kwesixhobo.
I-FR-4: I-FR-4 yimpahla ye-laminate ene-glass fiber cloth njengento yokuqinisa kunye ne-epoxy resin njenge-binder. Ngoku iyeyona isetyenziswa ngokuqhelekileyo i-PCB substrate, ngenxa yamandla ayo okusebenza kakuhle, iipropati zokugquma umbane kunye neempawu zokubuyiswa komlilo kwaye isetyenziswa ngokubanzi kwiimveliso ezahlukeneyo zombane. I-FR-4 inomlinganiselo we-flame retardant we-UL94 V-0, oku kuthetha ukuba ivutha kwidangatye ixesha elifutshane kwaye ifanelekile ukusetyenziswa kwizixhobo zombane ezineemfuno eziphezulu zokhuseleko.
umahluko ophambili:
Izinto ze-Substrate: Iipaneli ze-Metal copper-clad zisebenzisa isinyithi (njenge-aluminium okanye ubhedu) njenge-substrate, ngelixa i-FR-4 isebenzisa i-fiberglass cloth kunye ne-epoxy resin.
I-Thermal conductivity: I-thermal conductivity ye-metal clad sheet iphezulu kakhulu kune-FR-4, efanelekileyo kwizicelo ezifuna ukuchithwa kakuhle kobushushu.
Ubunzima kunye nobukhulu: Amaphepha obhedu anentsimbi ahlala enzima kune-FR-4 kwaye anokuba mncinci.
Ubuchule benkqubo: I-FR-4 ilula ukuyiqhuba, ifanelekile kuyilo oluntsonkothileyo lwePCB; Ipleyiti yobhedu eyenziwe ngesinyithi inzima ukuyiqhuba, kodwa ifanelekile kuluhlu olunye okanye uyilo olulula lwe-multi-layer.
Iindleko: Ixabiso le-metal copper sheet lihlala liphezulu kune-FR-4 ngenxa yexabiso eliphezulu lentsimbi.
Izicelo: Iipleyiti zobhedu ezinentsimbi zisetyenziswa kakhulu kwizixhobo zombane ezifuna ukuchithwa kakuhle kobushushu, njengombane ombane kunye nokukhanya kwe-LED. I-FR-4 iguquguquka ngakumbi, ilungele uninzi lwezixhobo zombane ezisemgangathweni kunye noyilo lwePCB olunemigangatho emininzi.
Ngokubanzi, ukhetho lwentsimbi yentsimbi okanye i-FR-4 ikakhulu ixhomekeke kwiimfuno zolawulo lwe-thermal yemveliso, ubunzima boyilo, uhlahlo lwabiwo-mali kunye neemfuno zokhuseleko.